Ruiru Sewerage Project Draft Tender Documents
Section C - Dayworks Schedule
Item Description Unit Quantity Rate Amount
No (KSh.) (KShs)
A - GENERAL ITEMS
The rates entered in the following schedules will be used in
assessing the cost of any extra work ordered by the Engineer
for execution on a Dayworks basis.
If any rate is found to be grossly in excess of prevailing
market rates the Engineer shall use the market rate for this
purpose. The rates indicated are to include for Contractor's
profit, administration, tools, supervision, overheads and all
other costs in relation to the provision of labour, materials
or plant indicated.
Labour
Unskilled labourer h 2,000
Foreman h 500
Assistant foreman h 1000
Plant operator h 500
Vehicle driver h 1,440
Mason h 500
Concretor h 500
Carpenter h 1,000
Plumber h 1,000
Pipelayer h 1,000
Electrician h 500
Surveyor h 500
Painter h 500
Technician h 500
Watchman h 1,440
Total C/F to Next Page
Ruiru Sewerage Project Draft Tender Documents
Total B/F From Previous Page
Materials
All materials as per specifications. The rate to include delivery
to site, storage and handling.
Coarse aggregates for concrete m3 300
Fine aggregates (sand) for concrete m3 300
Ordinary portland cement t 25
150mm thick building stone/concrete blocks nr 500
225mm thick building stone/concrete blocks nr 1,000
Hardcore m3 50
Murram/gravel m3 50
Spigot and socket concrete pipes 225mm dia. m 100
Spigot and socket concrete pipes 300mm dia. m 100
Spigot and socket concrete pipes 375mm dia. m 100
Spigot and socket concrete pipes 450mm dia. m 100
Spigot and socket concrete pipes 600mm dia. m 100
Spigot and socket concrete pipes 825mm dia. m 100
uPVC Class 34 pipe 160mm dia m 50
uPVC Class 34 pipe 200mm dia m 50
uPVC Class 34 pipe 225mm dia m 50
uPVC Class 34 pipe 250mm dia m 50
uPVC Class 34 pipe 315mm dia m 50
uPVC Class 34 pipe 355mm dia m 50
uPVC Class 34 pipe 400mm dia m 50
Concrete Class 10/20 m3 50
Concrete Grade 15/20 m3 50
Concrete Grade 20/20 m3 50
Concrete Grade 25/20 m3 50
Concrete Grade 30/20 m3 50
BRC mesh No. A142 m2 50
BRC mesh No. A193 m2 50
12mm and under mild steel round bars t 1
16mm and over mild steel round bars t 1
12mm and under high yield steel bars t 1
16mm and over high yield steel bars t 1
Shuttering timber m2 50
Petrol l 1,000
Diesel l 1,000
Lubricants l 250
Road marking paint l 50
Emulsion paint l 50
Gross paint l 50
Total C/F to Next Page
Section C - Dayworks Schedule
Item Description Unit Quantity Rate Amount
No (KSh.) (KShs)
Ruiru Sewerage Project Draft Tender Documents
Total B/F From Previous Page
Plant
Rate to include for all operation and maintenance costs, fuel, oil,
grease, operators etc.
1 tonne pickup h 200
7 tonne lorry (tipper) h 100
10 tonne lorry (tipper) h 100
15 tonne lorry (tipper) h 100
20 tonne lorry (tipper) h 100
D6 bulldozer h 50
D7 bulldozer h 50
Hydraulic excavator/shovel () h 50
Backhoe tractor () h 50
Wheel loader h 50
Mobile crane (5tonne) h 50
Concrete mixer h 50
Mobile concrete mixer h 50
Dumper, h 50
Dumper, h 50
Dumper, h 50
Dumper, h 50
Concrete vibrator (petrol or diesel) with drive, flex h 50
and 40mm poker
Concrete vibrator (petrol or diesel) with drive, flex h 50
and 75mm poker
Water bowser (5,000 l) h 50
Portable dewatering pump (50mm dia) h 50
Portable dewatering pump (75mm dia) h 50
Portable dewatering pump (100mm dia) h 50
Portable dewatering pump (150mm dia) h 50
Compaction roller 1 tonne h 50
Compaction roller 3 tonne h 50
Vibrating plate compactor h 50
Air compressor machine (5000 l/min) h 100
Jack hammer (25kg) h 200
Generator (15kVA) h 100
Generator (150kVA) h 100
Electric welding set including electrodes h 50
Cutting and welding set including oxygen and acytylene h 50
Total Dayworks Carried to Grand Summary
Section C - Dayworks Schedule
Item Description Unit Quantity Rate Amount
No (KSh.) (KShs)
Ruiru Sewerage Project Draft Tender Document
Section D - Work Items Part I (P & G)
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS
Item Description Unit Quantity
No
A : GENERAL ITEMS
Contractual Requirements
Performance Security sum
A120 Insurance of the Works sum
A130 Third Party Insurance sum
Setting out the Works as specified or directed by the Engineer sum
Allow for the provision of record drawings sum
Allow for provision of O&M Manuals sum
Specified Requirements - Offices and Accomodation for the Engineer's Staff
Provisional sum for furnishing the site offices for Engineer's Staff (Administration building to be
furnished and used as the engineer's office during construction period) sum
Allow monthly Maintenance of the site offices for 4no. Engineer's Staff
during the contract period month 24
Allow for a monthly sum for rented site accomodation month 24
for 4No Engineer's Staff over the duration of the contract
Provisional sum for furnishing the site accomodation for Engineer's Staff sum 1
% Adjustment (profits and overhead) to the provisional sum for Items to %
Specified Requirements - Services for Engineer's Staff
Allow for purchase of 4No. Vehicles of capacity exceeding 2400cc for use by the
Engineer's Staff as per the to revert to the Employer at
the end of the contract No. 4
Maintenance/running costs of the vehicles (4) for Engineer's staff over the km 500,000
Contract Period
Maintenance/operating costs for the telephone services provided to the PC
Engineer's Staff (Provisional)
% adjustment to the provisional sum for Item %
Ruiru Sewerage Project Draft Tender Document
Allow the Provisional Sum of KShs. 4,500,000 to cover supervision costs of staff assigned on the
project from the Employer’s head office to cover PC
expenses for communications, transport, etc to be expended as
directed by the Engineer.
Provisional sum for community mobilization PC
% Adjustment to the provisional sum for Items to %
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Item Description Unit Quantity
No
Total B/F From Previous Page
Specified Requirements - Equipment for Engineer's Staff
Provision of office equipment for use by the Engineer's Staff to revert to Employer PC
Maintenance of office equipment for use by the Engineer's Staff (Provisional) PC
Provision of laboratory/testing equipment for use by the Engineer's Staff to revert to
Employer/RUJIWASCO PC
Maintenance of the laboratory/testing equipment for Engineer's Staff (Provisional) PC
Provision of surveying instruments for the use of the Engineer's staff to revert to
Employer/RUJIWASCO PC
Maintenance of surveying instruments for the use of the Engineer's Staff (Provisional) PC
A234 Provision of protection, safety equipment and clothing for the use of the PC
Engineer's Staff(Provisional)
Provisional sum for camera equipment and site record and progress photographs as specified for
use by Engineer(Provisional) PC
% Adjustment to the provisional sum for Items to %
Specified Requirements - Attendance Upon Engineer's Staff
A241 Attendance upon Engineer's Staff by drivers (4No.) During the contract man-m 96
period
A242 Attendance upon Engineer's staff by chainmen man-m 120
A243 Attendance upon Engineer's staff by laboratory assistants man-m 48
Specified Requirements - Testing of Materials and Works
Allow for testing of materials as specified or directed by the Engineer sum
Allow for testing of the Works as specified or directed by the Engineer sum
Project Signboard and Plaque
Provision, fixing, maintaining and Removal of signboards nr 4
Allow for the construction of Project Plaque at conspicous place as directed (Provisional) sum
% Adjustment to the provisional sum for Item for contractor's profit and overhead %
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Provision for payments demanded by Authorities for the permanent diversion of existing services Sum 1
Provisional sum for acquisition and planting of trees seedlings to replace those damaged during
Construction of the pipeline. Seedlings to be of size and type as approved by the Engineer. Sum
Provisional sum for demolition and reinstatement of damages to property, fencing etc, for access
during construction in built up areas. Sum 1
Provisional sum for the compensation of damaged crops, plant, property etc to the affected
persons. Sum 1
Provisional sum for fees requested by various authorities to allow construction of the pipeline
across their wayleave. Sum 1
Percentage to cover contractor profit and overheads on item to above. %
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Item Description Unit Quantity
No
Total B/F From Previous Page
METHOD RATED CHARGES
In addition to items listed below a tenderer is to insert hereunder such items
as he may decide to cover items of work relating to his
intended method of executing the works, the costs of which are not, to be
considered as proportional to the quantities of the other items and for which he has not
allowed in the rates and prices for the other items.
A31 Accommodation and buildings
A311
Establish, maintain and remove Contractor's camp including electricity, water, security,
site transport,personnel transport and staff welfare. Sum
1
A312 Establish, maintain and remove Contractor's Laboratories Sum 1
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Item Description Unit Quantity
No
Total B/F From Previous Page
Method Related Charges (Page 1)
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Item Description Unit Quantity
No
Total B/F From Previous Page
Provisional Sums - Dayworks
A411 Labour sum
A412 % Adjustment to provisional sum for Dayworks Labour for profit and overheads %
A413 Materials sum
A414 % Adjustment to provisional sum for Dayworks Materials for profit and overheads %
A415 Plant sum
A416 % Adjustment to provisional sum for Dayworks Plant for profit and overheads %
Other Provisional Sums
Allow for removal/alteration/connection of electrical supply to site as provided by KPLC PC
Allow for removal/alteration/connection of telephone services to site as provided by TELKOM PC
Allow for removal/alteration/connection of water and sewerage services as PC
provided by MoWI/AWSB/RUJWASCO
Provision for the purchase of operation and maintenance equipment as specified PC
Allow for identification of underground communication and electricity cables. Rate to include
exposure of cables without damage and reinstatement of the same PC
% Adjustment for Contractor's costs and profit for items to %
Allowance for trial operating and training period upon issuance of Initial Taking-over
Certificate. Rate to include for continued presence of competent and responsible O & M
supervisory and training staff Item
Testing and Commissioning of all works including for the WWTP Item
Allow for Provision of AS BUILT drawings, records and operation and maintenance manuals Item
Total C/F to Grand Summary
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Rate Amount
(KSh.) (KSh.)
2,500,000
2,000,000
1,000,000
Section D - Work Items Part I (P & G)
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS
Ruiru Sewerage Project Draft Tender Document
4,500,000
2,000,000
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Rate Amount
(KSh.) (KSh.)
2,000,000
1,000,000
2,000,000
1,000,000
1,000,000
1,000,000
1,000,000
100,000
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
2,000,000 2,000,000
2,000,000
5,000,000 5,000,000
2,500,000 2,500,000
6,000,000 6,000,000
-
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Rate Amount
(KSh.) (KSh.)
-
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Rate Amount
(KSh.) (KSh.)
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Total C/F to Next Page
Section D - Work Items Part I (P & G)
Ruiru Sewerage Project Draft Tender Document
Rate Amount
(KSh.) (KSh.)
4,000,000
2,000,000
1,000,000
2,000,000
2,000,000
BILL NO. 1 - PRELIMINARIES AND GENERAL ITEMS (Continued)
Section D - Work Items Part I (P & G)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Section D - Work Items - Part II (Sewers)
BILL NO. 2 - MAIN TRUNK SEWER SYSTEM
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,580
Include provision of all equipment and materials
Carrying out test on 375mm pipeline as specified or directed by the Engineer. m 360
Include provision of all equipment and materials
Carrying out test on 450mm pipeline as specified or directed by the Engineer. m 1,060
Include provision of all equipment and materials
Carrying out test on 600mm pipeline as specified or directed by the Engineer. m 5,150
Include provision of all equipment and materials
Carrying out test on 825mm pipeline as specified or directed by the Engineer. m 3,500
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha 4
additional clearance required
D210 Removal of trees, girth -1m nr 10
D461 Buildings of indeterminate construction. Volume not exceeding 50m3 nr 10
D561 Other structures of indeterminate construction. Volume not exceeding 50m3 nr 10
Total C/F to Next Page
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 2 - MAIN TRUNK SEWER SYSTEM (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level
to invert level.
Nominal bore 225mm in trenches, depth . m m 265
Ditto but depth - m m 265
Ditto but depth - m m 265
Ditto but depth - m m 265
Ditto but depth - m m 265
Ditto but depth - m m 265
Nominal bore 375mm in trenches depth . m m 75
Ditto but depth - m m 75
Ditto but depth - m m 75
Ditto but depth - m m 75
Ditto but depth - m m 75
Ditto but depth - m m 75
Nominal bore 450mm in trenches depth . m m 177
Ditto but depth - m m 177
Ditto but depth - m m 177
Ditto but depth - m m 177
Ditto but depth - m m 177
Ditto but depth - m m 177
Nominal bore 600mm in trenches depth . m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Ditto but depth - m m 572
Nominal bore 825mm in trenches depth . m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Ditto but depth - m m 390
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 2 - MAIN TRUNK SEWER SYSTEM (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 30
Depth nr 25
Depth - nr 20
Depth m nr 15
Manhole type A, size 1200mm, reinforced concrete manhole slab and cover.
Depth upto nr 10
Depth m nr
19
Depth m nr
12
Depth m nr
11
Manhole type A, size 1500mm, reinforced concrete manhole slab and cover.
Depth upto nr 10
Depth nr 30
Depth - nr 38
Depth m nr 20
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr 12
Depth m nr 10
Depth - m
nr
8
Depth - nr 6
Depth -
nr
6
Manhole type B, size 1200mm, reinforced concrete manhole slab and cover.
Depth - nr 4
Depth m nr
2
Depth - m
nr 8
Depth - nr
6
Depth -
nr
8
Manhole type B, size 1200mm, reinforced concrete manhole slab and cover.
Depth - nr 4
Depth m nr 12
Depth - m
nr
15
Depth - nr 8
Depth -
nr
8
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 2 - MAIN TRUNK SEWER SYSTEM (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Crossings
Include for all work associated with the crossing
Railway Crossing and reinstatement. Steel Pipe nominal bore 600mm, width 15-25m. nr 1
Railway Crossing and reinstatement. Steel Pipe nominal bore 825mm, width15-25m. nr 1
River Crossing and reinstatement. Steel Pipe nominal bore 600mm, width 15-25m. nr 3
River Crossing and reinstatement. Steel Pipe nominal bore 825mm, width15-25m. nr 3
Reinstatement
K732 Breaking up, temporary and permanent reinstatement of Class A road (Thika Road) m 116
Pipe nominal bore 450mm
Breaking up, temporary and permanent reinstatement of Murram road m 20
Pipe nominal bore 600mm
Breaking up, temporary and permanent reinstatement of Murram road m 20
Pipe nominal bore 825mm
K752
Reinstatement of land
m
12000
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111 Excavation of rock,depth not exceeding m3 21,000
L117 Excavation of soft material below the final surface and backfilling with mass m3 100
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 100
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock, depth of rock m3 900
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 2 - MAIN TRUNK SEWER SYSTEM (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 1580
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 375mm m 500
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 450mm m 1500
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 600mm m 5140
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 825mm m 3000
Selected excavated granular material as per specifications. m 1000
Beds 150mm thick, pipeline nominal bore 225mm
Selected excavated granular material as per specifications. m 1000
Beds 150mm thick, pipeline nominal bore 375mm
Selected excavated granular material as per specifications. m 1000
Beds 150mm thick, pipeline nominal bore 450mm
Selected excavated granular material as per specifications. m 2500
Beds 150mm thick, pipeline nominal bore 600mm
Selected excavated granular material as per specifications. m 3000
Beds 150mm thick, pipeline nominal bore 825mm
Imported granular granular material as per specifications. m 1000
Beds 150mm thick, pipeline nominal bore 225mm
Imported granular granular material as per specifications. m 1000
Beds 150mm thick, pipeline nominal bore 375mm
Imported granular granular material as per specifications. m 1500
Beds 150mm thick, pipeline nominal bore 450mm
Imported granular granular material as per specifications. m 2500
Beds 150mm thick, pipeline nominal bore 600mm
Imported granular granular material as per specifications. m 3000
Beds 150mm thick, pipeline nominal bore 825mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 4000
375 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 2500
450 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 4000
600 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 2500
825 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 4000
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 3 - SEWER SYSTEM B
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 800
Include provision of all equipment and materials
Carrying out test on 300mm pipeline as specified or directed by the Engineer. m 750
Include provision of all equipment and materials
Carrying out test on 450mm pipeline as specified or directed by the Engineer. m 1,300
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha 1
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
Nominal bore 225mm in trenches, depth . m m 160
Ditto but depth - m m 160
Ditto but depth - m m 160
Ditto but depth - m m 160
Ditto but depth - m m 160
Nominal bore 300mm in trenches depth . m m 150
Ditto but depth - m m 150
Ditto but depth - m m 150
Ditto but depth - m m 150
Ditto but depth - m m 150
Nominal bore 450mm in trenches depth . m m 250
Ditto but depth - m m 250
Ditto but depth - m m 250
Ditto but depth - m m 250
Ditto but depth - m m 250
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 3 - SEWER SYSTEM B (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 3
Depth nr 10
Depth - nr 8
Depth m nr 19
Crossings
Include for all work associated with the crossing
K642 River Crossing and reinstatement. Steel Pipe nominal bore 450mm, width 10-20m. nr 2
K643 Railway Crossing and reinstatement. Steel Pipe nominal bore 450mm, width 10-20m. nr 1
Reinstatement
K732 Breaking up, temporary and permanent reinstatement of Class A road (Thika Road) m 116
Pipe nominal bore 450mm
K752 Reinstatement of land
m
2800
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 3 - SEWER SYSTEM B (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111 Excavation of rock, depth m3 7,280
L117 Excavation of soft material below the final surface and backfilling with mass m3 1400
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 700
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock,depth of rock m3 900
L127 Excavation of soft material below the final surface and backfilling with mass m3 40
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 40
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 800
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 375mm m 750
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 450mm m 1300
Selected excavated granular material as per specifications. m 800
Beds 150mm thick, pipeline nominal bore 225mm
Selected excavated granular material as per specifications. m 750
Beds 150mm thick, pipeline nominal bore 300mm
Selected excavated granular material as per specifications. m 1300
Beds 150mm thick, pipeline nominal bore 450mm
Imported granular granular material as per specifications. m 800
Beds 150mm thick, pipeline nominal bore 225mm
Imported granular granular material as per specifications. m 750
Beds 150mm thick, pipeline nominal bore 300mm
Imported granular granular material as per specifications. m 1300
Beds 150mm thick, pipeline nominal bore 450mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
300 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 750
450 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 800
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 4 - SEWER SYSTEM C
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 650
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 130
I223 Ditto but depth - m m 130
I224 Ditto but depth - m m 130
I225 Ditto but depth - m m 130
I226 Ditto but depth - m m 130
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
1
Depth m nr
1
Total C/F to Next Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 4 - SEWER SYSTEM C (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 700
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock, depth m3 2,400
L117 Excavation of soft material below the final surface and backfilling with mass m3 300
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 300
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock,depth of rock m3 130
L127 Excavation of soft material below the final surface and backfilling with mass m3 50
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 50
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 700
L322 Selected excavated granular material as per specifications. m 700
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 700
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 700
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 5 - SEWER SYSTEM D
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 600
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 120
I223 Ditto but depth - m m 120
I224 Ditto but depth - m m 120
I225 Ditto but depth - m m 120
I226 Ditto but depth - m m 120
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
1
Depth m nr
1
Total C/F to Next Page
BILL NO. 5 - SEWER SYSTEM D (Continued)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 600
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock, depth m3 2,400
L117 Excavation of soft material below the final surface and backfilling with mass m3 300
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 300
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock,depth of rock m3 150
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 600
L322 Selected excavated granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 600
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 6 - SEWER SYSTEM E
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 600
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 120
I223 Ditto but depth - m m 120
I224 Ditto but depth - m m 120
I225 Ditto but depth - m m 120
I226 Ditto but depth - m m 120
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
1
Depth m nr
1
Total C/F to Next Page
BILL NO. 6 - SEWER SYSTEM E (Continued)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 600
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock,depth m3 2,400
L117 Excavation of soft material below the final surface and backfilling with mass m3 300
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 300
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock,depth 3m m3 195
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 600
L322 Selected excavated granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 600
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 7 - SEWER SYSTEM F
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 600
Include provision of all equipment and materials
B - SITE INVESTIGATIONS
B111 Trial holes where ordered to prove location, construction size etc, of pipelines, nr 2
services or existing structures, max. Depth 1m
B112 Trial holes where ordered to prove location, construction size etc, of pipelines, nr 2
services or existing structures, max. Depth 1-2m
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 120
I223 Ditto but depth - m m 120
I224 Ditto but depth - m m 120
I225 Ditto but depth - m m 120
I226 Ditto but depth - m m 120
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
1
Depth m nr
1
Total C/F to Next Page
BILL NO. 7 - SEWER SYSTEM F (Continued)
Item Description Unit Quantity Rate
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 600
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 2,400
L117 Excavation of soft material below the final surface and backfilling with mass m3 300
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 300
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding (Provisional)
In Manholes and other chambers
L121 Excavation of rock m3 195
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 600
L322 Selected excavated granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 600
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 600
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 8 - SEWER SYSTEM G
Item Description Unit Quantity Rate
No (KSh.)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,180
Include provision of all equipment and materials
Carrying out test on 375mm pipeline as specified or directed by the Engineer. m 600
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
Nominal bore 225mm in trenches, depth . m m 236
Ditto but depth - m m 236
Ditto but depth - m m 236
Ditto but depth - m m 236
Ditto but depth - m m 236
Nominal bore 375mm in trenches depth . m m 120
Ditto but depth - m m 120
Ditto but depth - m m 120
Ditto but depth - m m 120
Ditto but depth - m m 120
Total C/F to Next Page
BILL NO. 8 - SEWER SYSTEM G (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type A, size 1200mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth m nr
2
Depth m nr
2
Depth m nr
2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
K153 Depth - nr
4
Manhole type B, size 1200mm, reinforced concrete manhole slab and cover.
K154 Depth - nr
4
Crossings
Include for all work associated with the crossing
K622 River Crossing and reinstatement. Steel Pipe nominal bore 450mm, width 10-20m. nr 2
Reinstatement
K732 Breaking up, temporary and permanent reinstatement of road. Pipe bore 375mm m 35
K752 Reinstatement of land
m 1700
Total C/F to Next Page
BILL NO. 8 - SEWER SYSTEM G (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111 Excavation of rock m3 6,000
L117 Excavation of soft material below the final surface and backfilling with mass m3 400
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 400
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 375
L127 Excavation of soft material below the final surface and backfilling with mass m3 40
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 40
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 1600
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 375mm m 1600
Selected excavated granular material as per specifications. m 1600
Beds 150mm thick, pipeline nominal bore 225mm
Selected excavated granular material as per specifications. m 1600
Beds 150mm thick, pipeline nominal bore 375mm
Imported granular granular material as per specifications. m 1600
Beds 150mm thick, pipeline nominal bore 225mm
Imported granular granular material as per specifications. m 1600
Beds 150mm thick, pipeline nominal bore 375mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
375 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 560
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 9 - SEWER SYSTEM H
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,080
Include provision of all equipment and materials
B - SITE INVESTIGATIONS
B111 Trial holes where ordered to prove location, construction size etc, of pipelines, nr 2
services or existing structures, max. Depth 1m
B112 Trial holes where ordered to prove location, construction size etc, of pipelines, nr 2
services or existing structures, max. Depth 1-2m
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 216
I223 Ditto but depth - m m 216
I224 Ditto but depth - m m 216
I225 Ditto but depth - m m 216
I226 Ditto but depth - m m 216
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 3
Depth nr 3
Depth - nr 3
Depth m nr 3
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
3
Depth m nr
3
Total C/F to Next Page
BILL NO. 9 - SEWER SYSTEM H (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
K751
Reinstatement of land
m 1100
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 3,300
L117 Excavation of soft material below the final surface and backfilling with mass m3 800
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 800
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 900
L127 Excavation of soft material below the final surface and backfilling with mass m3 60
concrete, depth not exceeding (Provisional)
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 60
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding (Provisional)
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 1100
L322 Selected excavated granular material as per specifications. m 1100
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 1100
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 1100
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 10 - SEWER SYSTEM J
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 550
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 110
I223 Ditto but depth - m m 110
I224 Ditto but depth - m m 110
I225 Ditto but depth - m m 110
I226 Ditto but depth - m m 110
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
2
Depth m nr
2
Total C/F to Next Page
BILL NO. 10 - SEWER SYSTEM J (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 550
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 3,000
L117 Excavation of soft material below the final surface and backfilling with mass m3 200
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 200
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 150
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 550
L322 Selected excavated granular material as per specifications. m 550
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 550
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 550
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 11 - SEWER SYSTEM K
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 370
Include provision of all equipment and materials
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Carrying out test on 375mm pipeline as specified or directed by the Engineer. m 450
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
Nominal bore 225mm in trenches, depth . m m 74
Ditto but depth - m m 74
Ditto but depth - m m 74
Ditto but depth - m m 74
Ditto but depth - m m 74
Nominal bore 375mm in trenches depth . m m 90
Ditto but depth - m m 90
Ditto but depth - m m 90
Ditto but depth - m m 90
Ditto but depth - m m 90
Total C/F to Next Page
BILL NO. 11 - SEWER SYSTEM K (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type A, size 1200mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth m nr
2
Depth m nr
2
Depth m nr
2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
K153 Depth - nr
2
Manhole type B, size 1200mm, reinforced concrete manhole slab and cover.
K154 Depth - nr
2
Crossings
Include for all work associated with the crossing
K622 River Crossing and reinstatement. Steel Pipe nominal bore 450mm, width 10-20m. nr 1
Reinstatement
K732 Breaking up, temporary and permanent reinstatement of road. Pipe bore 375mm m 35
K752 Reinstatement of land
m 800
Total C/F to Next Page
BILL NO. 11 - SEWER SYSTEM K (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
In Pipe trenches
L111 Excavation of rock m3 6,000
L117 Excavation of soft material below the final surface and backfilling with mass m3 1000
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 1000
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 900
L127 Excavation of soft material below the final surface and backfilling with mass m3 50
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 50
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 380
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 375mm m 450
Selected excavated granular material as per specifications. m 380
Beds 150mm thick, pipeline nominal bore 225mm
Selected excavated granular material as per specifications. m 450
Beds 150mm thick, pipeline nominal bore 375mm
Imported granular granular material as per specifications. m 380
Beds 150mm thick, pipeline nominal bore 225mm
Imported granular granular material as per specifications. m 450
Beds 150mm thick, pipeline nominal bore 375mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
375 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 450
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 12 - SEWER SYSTEM L
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 560
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 112
I223 Ditto but depth - m m 112
I224 Ditto but depth - m m 112
I225 Ditto but depth - m m 112
I226 Ditto but depth - m m 112
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
2
Depth m nr
2
Total C/F to Next Page
BILL NO. 12 - SEWER SYSTEM L (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 560
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
In Pipe trenches
L111
Excavation of rock, depth of rock m3 2,100
L117 Excavation of soft material below the final surface and backfilling with mass m3 500
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 500
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock, depth of rock m3 450
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 560
L322 Selected excavated granular material as per specifications. m 560
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 560
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 560
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 13 - SEWER SYSTEM N
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 660
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
D210 Removal of trees, girth -1m nr 2
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 132
I223 Ditto but depth - m m 132
I224 Ditto but depth - m m 132
I225 Ditto but depth - m m 132
I226 Ditto but depth - m m 132
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 2
Depth - nr 2
Depth m nr 2
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
2
Depth m nr
2
Total C/F to Next Page
BILL NO. 13 - SEWER SYSTEM N (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 660
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
L111
Excavation of rock, depth m3 2,250
L117 Excavation of soft material below the final surface and backfilling with mass m3 600
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 600
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock, depth of rock m3 450
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding
L128 Allow for excavation of soft material below final surface of pipe trench and backfill m3 20
with approved hardcore, well compacted in layers of 200mm thickness,
depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 660
L322 Selected excavated granular material as per specifications. m 660
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 660
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 660
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Amount
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
(KShs)
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Amount
(KShs)
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Section D - Work Items - Part II (Sewers)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Section D - Work Items - Part II (Sewers Continued)
BILL NO. 14 - MAIN TRUNK SEWER SYSTEM P
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 300mm pipeline as specified or directed by the Engineer. m 3,000
Include provision of all equipment and materials
Carrying out test on 450mm pipeline as specified or directed by the Engineer. m 3,260
Include provision of all equipment and materials
Carrying out test on 600mm pipeline as specified or directed by the Engineer. m 5,740
Include provision of all equipment and materials
Carrying out test on 825mm pipeline as specified or directed by the Engineer. m 2,690
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha 1
additional clearance required
D210 Removal of trees, girth -1m nr 200
Total C/F to Next Page
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 14 - MAIN TRUNK SEWER SYSTEM P (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to
invert level.
Nominal bore 300mm in trenches depth . m m 395
Ditto but depth - m m 455
Ditto but depth - m m 761
Ditto but depth - m m 871
Ditto but depth - m m 146
Ditto but depth - m m 88
Ditto but depth - 6 m m 151
Ditto but depth exceeding 6 m m 134
Nominal bore 450mm in trenches depth - m m 38
Ditto but depth - m m 117
Ditto but depth - 6 m m 1430
Ditto but depth exceeding 6 m m 1676
Nominal bore 600mm in trenches depth - m m 33
Ditto but depth - m m 211
Ditto but depth - m m 220
Ditto but depth - m m 499
Ditto but depth - 6 m m 1897
Ditto but depth exceeding 6 m m 2875
Nominal bore 825mm in trenches depth - m m 71
Ditto but depth - m m 83
Ditto but depth - m m 237
Ditto but depth - m m 334
Ditto but depth - 6 m m 1396
Ditto but depth exceeding 6 m m 569
Total C/F to Next Page
BILL NO. 14 - MAIN TRUNK SEWER SYSTEM P(Continued)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 8
Depth nr 8
Depth - nr 13
Depth m nr 13
Manhole type A, size 1200mm, reinforced concrete manhole slab and cover.
Depth m nr
2
Depth m nr
1
Manhole type A, size 1500mm, reinforced concrete manhole slab and cover.
Depth m nr 1
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
4
Depth m nr
2
Depth - m
nr 25
Depth exceeding 6m nr 30
Manhole type B, size 1200mm, reinforced concrete manhole slab and cover.
Depth - nr
1
Depth m nr
8
Depth - m
nr 19
Depth exceeding 6m nr 33
Manhole type B, size 1500mm, reinforced concrete manhole slab and cover.
Depth - nr
2
Depth m nr
4
Depth - m
nr 15
Depth exceeding 6m nr 7
Total C/F to Next Page
BILL NO. 14 - MAIN TRUNK SEWER SYSTEM P(Continued)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Crossings
Include for all work associated with the crossing
Railway line Crossing and reinstatement. Pipe nominal bore 450mm, width 20-50m. nr 1
Trenchless Road Crossing and reinstatement of Class A road (Thika Road) under the Kamiti
River Bridge. Pipe nominal bore 450mm, width 20-50m. nr 3
Trenchless Road Crossing and reinstatement of road (North -Eastern Bypass Road) under the
provided box culvert. Pipe nominal bore 600mm, width 20-50m. nr 1
Reinstatement
K732 Breaking up, temporary and permanent reinstatement of Murram road m 10
(Membley Road) Pipe nominal bore 450mm
Breaking up, temporary and permanent reinstatement of Murram roads m 24
Pipe nominal bore 600mm
K752
Reinstatement of land
m
14690
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111 Excavation of rock (Soft) m3 29,139
L112 Excavation of rock (hard) m3 29,139
L117 Excavation of soft material below the final surface and backfilling with mass m3 15000
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 17640
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 900
L127 Excavation of soft material below the final surface and backfilling with mass m3 297
concrete, depth not exceeding
Total C/F to Next Page
BILL NO. 14 - MAIN TRUNK SEWER SYSTEM P (Continued)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 300mm m 315
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 450mm m 416
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 600mm m 860
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 825mm m 496
Selected excavated granular material as per specifications. m 315
Beds 150mm thick, pipeline nominal bore 300mm
Selected excavated granular material as per specifications. m 416
Beds 150mm thick, pipeline nominal bore 450mm
Selected excavated granular material as per specifications. m 860
Beds 150mm thick, pipeline nominal bore 600mm
Selected excavated granular material as per specifications. m 496
Beds 150mm thick, pipeline nominal bore 825mm
Imported granular granular material as per specifications. m 315
Beds 150mm thick, pipeline nominal bore 300mm
Imported granular granular material as per specifications. m 416
Beds 150mm thick, pipeline nominal bore 450mm
Imported granular granular material as per specifications. m 860
Beds 150mm thick, pipeline nominal bore 600mm
Imported granular granular material as per specifications. m 496
Beds 150mm thick, pipeline nominal bore 825mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
300 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 3000
450 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 3,260
600 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 5,740
825 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 2,690
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 15 - SEWER SYSTEM Q
Item Description Unit Quantity Rate
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 476
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 5
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I223 Nominal bore 225mm in trenches, depth - m m 255
I224 Ditto but depth - m m 221
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth nr 4
Depth - nr 4
Total C/F to Next Page
BILL NO. 15 - SEWER SYSTEM Q(Continued)
Item Description Unit Quantity Rate
No (KSh.)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Total B/F From Previous Page
Reinstatement
K751
Reinstatement of land
m 476
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 235
L117 Excavation of soft material below the final surface and backfilling with mass m3 300
concrete, depth not exceeding (Provisional)
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 300
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding (Provisional)
In Manholes and other chambers
L121 Excavation of rock m3 10
L127 Excavation of soft material below the final surface and backfilling with mass m3 20
concrete, depth not exceeding (Provisional)
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 476
L322 Selected excavated granular material as per specifications. m 476
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 476
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 476
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 16 - SEWER SYSTEM R
Item Description Unit Quantity Rate
No (KSh.)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 800
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 6
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth - m m 216
I223 Ditto but depth - m m 148
I224 Ditto but depth - m m 121
I225 Ditto but depth - m m 132
I226 Ditto but depth - m m 186
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth nr 5
Depth - nr 3
Depth m nr 1
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
5
Total C/F to Next Page
BILL NO. 16 - SEWER SYSTEM R (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Reinstatement
K751
Reinstatement of land
m 800
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 1,130
L117 Excavation of soft material below the final surface and backfilling with mass m3 528
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 528
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 15
L127 Excavation of soft material below the final surface and backfilling with mass m3 15
concrete, depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 800
L322 Selected excavated granular material as per specifications. m 800
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 800
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 800
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 17 - SEWER SYSTEM S
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,456
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 5
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 245
I223 Ditto but depth - m m 233
I224 Ditto but depth - m m 158
I225 Ditto but depth - m m 108
I226 Ditto but depth - m m 331
I227 Ditto but depth - m m 56
I228 Ditto but depth - m m 325
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 5
Depth nr 5
Depth - nr 1
Depth m nr 3
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
5
Depth m nr
1
Depth m nr
5
Total C/F to Next Page
BILL NO. 17 - SEWER SYSTEM S (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
Reinstatement
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
K751
Reinstatement of land
m 1456
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111
Excavation of rock m3 2,358
L117 Excavation of soft material below the final surface and backfilling with mass m3
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 900
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 45
L127 Excavation of soft material below the final surface and backfilling with mass m3 45
concrete, depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
L312 Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 1456
L322 Selected excavated granular material as per specifications. m 1456
Beds 150mm thick, pipeline nominal bore 225mm
L332 Imported granular granular material as per specifications. m 1456
Beds 150mm thick, pipeline nominal bore 225mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
L442 225 mm nominal bore pipeline Bed and haunch Type B (Concrete m3/m) m 1456
Total C/F to Part II (Sewers) Summary Sheet
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 18 - SEWER SYSTEM T
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,440
Include provision of all equipment and materials
Carrying out test on 300mm pipeline as specified or directed by the Engineer. m 540
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 25
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
Nominal bore 225mm in trenches, depth - m m 182
Ditto but depth - m m 182
Ditto but depth - m m 374
Ditto but depth - m m 174
Ditto but depth - 6 m m 530
Nominal bore 300mm in trenches depth . m m 53
Ditto but depth - m m 205
Ditto but depth - m m 213
Ditto but depth - m m 61
Ditto but depth - m m 10
Total C/F to Next Page
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
BILL NO. 18 - SEWER SYSTEM T (Continued)
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
K: PIPEWORK - MANHOLES AND PIPEWORK ANCILLARIES
Excavation quantities are given net. The rates entered are to include for manhole
concrete slabs and covers, step irons or ladder, excavation, working room, trimming
the base of the excavation, shuttering where necessary, refiIIing and compacting
around the finished manholes, and disposing of surplus spoil local to the trench.
Surplus spoil is to be evenly spread.
Excavation in any material other than rock.
Manholes
Manhole type A, size 1050mm, reinforced concrete manhole slab and cover.
Depth upto nr 2
Depth nr 3
Depth - nr 6
Depth m nr 5
Manhole type B, size 1050mm, reinforced concrete manhole slab and cover.
Depth - nr
5
Depth - nr
2
Depth - 6m nr
8
Crossings
Include for all work associated with the crossing
K622 River Crossing and reinstatement. Pipe nominal bore 300mm, width 10-20m. nr 1
Reinstatement
K752 Reinstatement of land
m 1980
Total C/F to Next Page
BILL NO. 18 - SEWER SYSTEM T (Continued)
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
Total B/F From Previous Page
L: SUPPORTS AND PROTECTION ANCILLARIES TO LAYING AND
EXCAVATION
Extras to Excavation and Backfilling Trenches
In Pipe trenches
L111 Excavation of rock m3 3,321
L117 Excavation of soft material below the final surface and backfilling with mass m3 1386
concrete, depth not exceeding
L118 Allow for excavation of soft material below final surface of pipe trench and backfill m3 1386
with approved hardcore, well compacted in layers of 200mm thickness, depth not
exceeding
In Manholes and other chambers
L121 Excavation of rock m3 54
L127 Excavation of soft material below the final surface and backfilling with mass m3 60
concrete, depth not exceeding
Bed, Haunches and Surrounds
Granular Materials
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 225mm m 1440
Sand as per specifications. Beds 150mm thick, pipeline nominal bore 300mm m 540
Selected excavated granular material as per specifications. m 1440
Beds 150mm thick, pipeline nominal bore 225mm
Selected excavated granular material as per specifications. m 540
Beds 150mm thick, pipeline nominal bore 300mm
Imported granular granular material as per specifications. m 1440
Beds 150mm thick, pipeline nominal bore 225mm
Imported granular granular material as per specifications. m 540
Beds 150mm thick, pipeline nominal bore 375mm
Mass Concrete Grade 15/20 in 150mm Thick Beds,Haunches and Surrounds
225 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 1440
300 mm nominal bore pipeline Surround Type C (Concrete m3/m) m 540
Total C/F to Part II (Sewers) Summary Sheet
BILL NO. 19 - SEWER SYSTEM V
Section D - Work Items - Part II (Sewers Continued)
RUIRU SEWERAGE PROJECT DRAFT TENDER DOCUMENTS
Item Description Unit Quantity Rate
No (KSh.)
A - GENERAL ITEMS
Testing of the Works
A260 Carrying out test on 225mm pipeline as specified or directed by the Engineer. m 1,760
Include provision of all equipment and materials
D - DEMOLITION AND SITE CLEARANCE
D100 General site clearance through undeveloped land over the wayleave, include for any ha
additional clearance required
D210 Removal of trees, girth -1m nr 30
CLASS I: PIPEWORK - PIPES
PRECAST CONCRETE PIPES TO BS 5911 WITH
SPIGOT AND SOCKET FLEXIBLE JOINTS
The rates entered against the items in this section shall include for stripping top soil,
laying aside and subsequently replacing over refilled trench, excavation in trench in
material other than rock, shuttering where necessary, refilling and compacting,
spreading surplus soil evenly over and alongside pipe trench compacting, supply lay
and joint pipes to correct line and level. Depths are stated from ground level to invert
level.
I222 Nominal bore 225mm in trenches, depth . m m 99
I223 Ditto but depth - m m 103
I22
