BID DOCUMENT FOR CONSTRUCTION OF STORM WATER DRAIN ALONG DAKOR–NADIAD ROAD AT UMRETH NAGARPALIKA, DISTRICT ANAND.

Excavation for foundation up to 1.5 m depth including sorting out and

stacking of useful materials and disposing off the excavated stuff upto

Meter lead.(A) Loose or soft soil.

General: Any soil which generally yields to the application of pickaxes and

shovels, phawaras, rakes or any such ordinary excavating implement or organic

soil, gravel, silt, sand turf loam, clay, peat etc., fall under this category.

Clearing the site :The site on which the structure is to be built shall be cleared

and all obstructions, loose stone, materials and rubbish of all kind, bush, wood

and trees shall be removed as directed: The materials so obtained shall be

property of the Government and be conveyed and stacked as directed within

The roots of the trees coming in the sides shall be cut and coated with a hot

asphalt. The rate of site clearance is deemed included in the rate of earthwork for

which no extra will be paid.

Setting out: After clearing the site, the centerlines will be given by the Engineer-

in- charge. The contractor shall assume full responsibility for alignment, elevation

and dimension of each and all parts of the tractor shall assume fu; responsibility

for alignment elevation and dimension of each and all parts of the work.

Contractor shall supply laborers, materials, etc. required for setting out the

reference marks and bench marks and shall maintain them a long as required and

Excavation: The excavation in foundation shall be carried out in true line and level

and shall have the width and depth as shown in the drawings or as directed.

The contractor shall do the necessary shoring and shutting or providing necessary

slopes to a safe angle, at his own cost. The payment for sue precautionary

measures shall be paid separately if not specified.

The bottom of the excavated area shall be leveled both longitudinally and

transversely as directed by removing and watering as required. No earth filling

will be allowed for bringing it to level, if by mistake or any; other reason

excavation is made deeper or wider that shown on the plan or directed.

The extra depth or width shall be made up with concrete of same proportion as

specified for the foundation concrete at the cost of the contractor. The excavation

up to 1.5 m. depths shall be measured under this item.

Disposal of the excavated stud: The excavated stuff of the selected type shall be

used in filling the trenches and plinth or leveling the ground in layers including

The balance of the excavated quantity shall be removed by the contractor from

the site of work to a place as directed with lead up to 50 M. and all lift.

Mode of measurement and payment:

The measurement of excavation in trenches for foundation shall be made

according to the sections of trenches shown on the drawing or as per sections

given by the Engineer-in-charge.

No payment shall be made for surplus excavation made in excess of above

requirements or due to slopping and sloping back as found necessary on account

of conditions of soil and requirements of safety.

The rate-shall be for a unit of one cubic meter.

Providing and laying cement concrete 1:4:8 (1- Cement: 4- coarse sand : 8- hand

broken stone aggregates 40 mm nominal size) and curing complete excluding

cost of formwork in (A) Foundation and Plinth

General: Before starting concrete bed of foundation trenches shall be cleared of

all loose materials, leveled, watered and rammed as directed.

Proportion of Mix: The Proportion of cement, sand and coarse aggregate shall be

one part of cement, 4 parts of sand, 8 parts of stone aggregates and shall so

measured by volume.

Mixing : The concrete shall be mixed in a mechanical mixer at the site of work.

Hand mixing may however be lowed for smaller quantity of work if approved by

the Engineer-in-charge. When hand mixing is permitted by the Engineer- in-

charge in case of break-down of machineries and in the interest of the work, it

shall be carried out on a water tight platform and care shall be taken to ensure

that mixing is continued until the mass is uniform in color and consistency.

However, such cases 10% more cement than otherwise required shall have to be

used without any extra cost. The mixing in mechanical mixer shall be done for a

period 1 to 2 minutes. The quantity of water shall be sufficient to produce a dense

concrete of required workability for the purpose.

Transporting & Placing the concrete:

The concrete shall be handled from the place of mixing to the final position in not

more than 15 minutes by the method s directed and shall be placed into its final

position, compacted and finished within 30 minutes of mixing with water i.e.

before the setting commences.

The concrete shall be laid in layers of 15 cms. to 20 cms.

Compacting: The concrete shall be rammed with heavy iron rammers and rapidly

to get the required compaction and allow all the interestices to be filled with

Curing: After the final set, the concrete shall be kept continuously wet, if

required by pending for a period of not less than 7 days from the dale of

Mode of measurement and Payment:

The concrete shall be measured for its length breadth and depth, limiting

dimensions to those specified on plan or as directed.

The rate shall be for a unit of one cubic meter.

Providing formwork of ordinary timber planking so as to give a rough finish

including centering shuttering strutting and propping etc. Height of propping

and centering below supporting floor to ceiling not exceeding 4 M. and removal

of the same for in situ reinforced concrete and plain concrete work in. (A)

Foundations Footings Bases of Columns etc. and Mass concrete.

The item includes:

• Supplying timber planks

• Erection of formwork

• Providing supports (props, struts, braces)

• Aligning and leveling

• Tightening joints to prevent leakage

• Dismantling and removal after setting

• Suitable for:

o Substructure work

o Surfaces not exposed or not requiring plaster finish

Height Limitation

• Height of centering and propping:

o Not exceeding 4 meters

(Measured from floor level to soffit of structure)

Materials & Supports

• Timber planks (main shuttering material)

• Ballies / props / struts

• Nails, wedges, clamps

• Formwork must be:

o Strong and rigid

o Properly aligned

o Easily removable without damaging concrete

Removal (Stripping)

• Removed after concrete gains sufficient strength

• Care must be taken to:

o Avoid cracks or damage

o Maintain edges and shape

Measurement & Payment

o Square meters (m²) of surface in contact with concrete

• Rate includes:

o Supports and fixing

Providing and laying controlled cement concrete M.200 and curing complete

including the cost of formwork and excluding reinforcement for reinforced

concrete work in (A) Foundations, footings, Base of columns and Mass concrete.

Materials & Workmanship:

The work shall be carried out in accordance with the relevant specifications,

drawings, and directions of the Engineer-in-Charge for reinforced cement

concrete works. The concrete shall be machine mixed, properly placed,

compacted by mechanical vibrators, finished, and cured for the specified period

to achieve the required strength and durability.

All materials including cement, fine aggregate, coarse aggregate, water,

admixtures (if approved), and workmanship shall conform to the relevant IS

Specifications and applicable codes.

Formwork, centering, shuttering, staging, strutting, propping, supports, and all

temporary works required for proper execution of the concrete work shall be

provided by the Contractor. Formwork shall be true to line, level, plumb, rigid,

watertight, and capable of withstanding all loads imposed during concreting

without deformation. Formwork shall be removed only after the concrete has

attained sufficient strength and in accordance with the relevant specifications.

The bars shall be kept in position by the following methods:

(i) In case of beam and slab construction, sufficient number of precast cover

blocks in cement mortar 1:2 (1 cement : 2 coarse sand), approximately 40 mm ×

40 mm in section and of thickness equal to the specified cover, shall be placed

between the reinforcement and shuttering to secure and maintain the required

concrete cover.

(ii) In case of cantilever or doubly reinforced beams and slabs, the main

reinforcing bars shall be held in position by suitable chairs, spacers, support bars,

or approved methods at appropriate intervals.

(iii) In case of columns and walls, the vertical bars shall be maintained in correct

position by suitable templates, spacers, or other approved arrangements.

(iv) The reinforcement may also be suitably tied with annealed steel wire to

maintain its position during concreting.

(v) All reinforcement bars projecting from columns, beams, slabs, walls, or other

structural members to which subsequent concrete is to be bonded shall be

protected with a thin coat of neat cement slurry where the next stage of

concreting is not likely to be carried out within ten days. The protective coating

shall be removed before subsequent concreting.

Concrete shall be laid only after the reinforcement, formwork, and embedded

fixtures have been inspected and approved by the Engineer-in-Charge. The

concrete shall be properly compacted and cured as specified.

Mode of Measurement and Payment:

Measurement shall be made in cubic metres of finished reinforced cement

concrete work as executed and accepted.

No deduction shall be made for the volume occupied by reinforcement, inserts,

sleeves, pipes, or similar embedded items.

The rate shall include the cost of all materials, labour, mixing, placing,

compacting, curing, centering, shuttering, formwork, staging, scaffolding, removal

of formwork, tools and plants, machinery, transportation, and all incidental

charges required for satisfactory completion of the work.

Reinforcement steel shall be measured and paid separately under the relevant

item of the Schedule-B.

The rate shall be for one cubic metre of completed work.

Providing and laying controlled cement concrete M.200 and curing complete

including the cost of formwork and excluding reinforcement for reinforced

concrete work in Walls, from top of foundation level up to floor two level.

Materials & Workmanship:

The work shall be carried out in accordance with the relevant specifications,

approved drawings, and directions of the Engineer-in-Charge for reinforced

cement concrete works. Concrete shall be machine mixed, properly placed,

compacted by mechanical vibrators, finished, and cured for the specified period

to achieve the required strength, durability, and surface finish.

All materials including cement, fine aggregate, coarse aggregate, water,

admixtures (if approved), and workmanship shall conform to the relevant IS

Specifications and applicable codes.

Formwork, centering, shuttering, staging, strutting, bracing, supports, and all

temporary works required for construction of RCC walls shall be provided by the

Contractor. Formwork shall be true to line, level, plumb, rigid, watertight, and

capable of withstanding all loads imposed during concreting without deformation.

The exposed faces of walls shall be finished smooth and true to the required

alignment. Formwork shall be removed only after the concrete has attained

sufficient strength and in accordance with the relevant specifications.

The reinforcement bars shall be fixed separately under the relevant

reinforcement item and shall be maintained in their correct position by means of

approved cover blocks, spacers, chairs, templates, and binding wire as required.

Adequate concrete cover shall be maintained throughout the work.

All projecting reinforcement bars intended for future connections shall be

protected with a coat of neat cement slurry where subsequent concreting is not

likely to take place within ten days. The protective coating shall be removed

before the next stage of concreting.

Concrete shall be placed only after inspection and approval of reinforcement,

formwork, inserts, sleeves, and embedded fixtures by the Engineer-in-Charge. The

concrete shall be thoroughly compacted by mechanical vibration and cured as

Mode of Measurement and Payment:

Measurement shall be made in cubic metres of finished RCC wall work as

executed and accepted.

No deduction shall be made for the volume occupied by reinforcement, inserts,

sleeves, pipes, weep holes, or other embedded items.

The rate shall include the cost of all materials, labour, mixing, placing,

compacting, curing, centering, shuttering, formwork, staging, scaffolding, removal

of formwork, tools and plants, machinery, transportation, and all incidental

charges necessary for satisfactory completion of the work.

Reinforcement steel shall be measured and paid separately under the relevant

Schedule-B item.

The rate shall be for one cubic metre of completed RCC wall work.

Providing and laying controlled cement concrete M.200 and curing complete

including the cost of formwork and excluding reinforcement for reinforced

concrete work in Slabs, Landings, Shelves, Balconies, Lintels, Beams, Girders and

Cantilevers up to floor two level.

Materials & Workmanship:

The work shall be carried out in accordance with the relevant specifications,

approved drawings, and directions of the Engineer-in-Charge for reinforced

cement concrete works. Concrete shall be machine mixed, properly placed,

compacted by mechanical vibrators, finished, and cured for the specified period

to achieve the required strength, durability, and surface finish.

All materials including cement, fine aggregate, coarse aggregate, water,

admixtures (if approved), and workmanship shall conform to the relevant IS

Specifications and applicable codes.

Formwork, centering, shuttering, staging, scaffolding, strutting, bracing, props,

supports, and all temporary works necessary for construction of slabs, beams,

lintels, girders, balconies, shelves, landings, and cantilever members shall be

provided by the Contractor. The formwork shall be true to line, level, dimensions,

and camber as required, and shall be sufficiently rigid and watertight to prevent

loss of grout and deformation during concreting. Formwork shall be removed only

after the concrete has attained adequate strength and in accordance with the

relevant specifications.

Reinforcement shall be measured and paid separately under the relevant item.

Reinforcement bars shall be maintained in their correct position by means of

approved cover blocks, spacers, chairs, support bars, and binding wire to ensure

the specified concrete cover and proper placement during concreting.

All projecting reinforcement bars intended for future connections shall be

protected with a coat of neat cement slurry where subsequent concreting is not

likely to take place within ten days. The protective coating shall be removed

before the next stage of concreting.

Concrete shall be placed only after inspection and approval of reinforcement,

formwork, inserts, sleeves, conduits, embedded fixtures, and openings by the

Engineer-in-Charge. Concrete shall be thoroughly compacted by mechanical

vibration and properly cured as specified.

Mode of Measurement and Payment:

Measurement shall be made in cubic metres of finished RCC work as executed

No deduction shall be made for the volume occupied by reinforcement, inserts,

conduits, sleeves, pipes, embedded fixtures, or similar items.

The rate shall include the cost of all materials, labour, mixing, placing,

compacting, curing, centering, shuttering, formwork, staging, scaffolding, removal

of formwork, tools and plants, machinery, transportation, and all incidental

charges required for satisfactory completion of the work.

Reinforcement steel shall be measured and paid separately under the relevant

Schedule-B item.

The rate shall be for one cubic metre of completed RCC work.

Filling in foundation and plinth with murrum or selected soil in layers of 20cm.

thickness including watering, ramming and consolidating etc. complete.

brick bats of-burnt bricks shall be filled in foundation and plinth in 20 cms layer

including watering, ramming, consolidating work to be used for filling shall be free

from salts, organic or other foreign matter. All clods of earth shall be broken.

As soon as the work in foundation has been completed and measured the site of

foundation shall be cleared of all debris, brick bats: mortar dropping etc., and

filled with earth in layers not exceeding 20 cms.

Each layer shall be adequately watered, rammed and consolidated before the

succeeding layer is laid The earth shall be rammed with iron rammers where

feasible and with the but ends of crow-bars, where rammer cannot be used.

The plinth shall be similarly filled with earth in layers not exceeding 20 cms.

adequately watered and consolidated by ramming with iron or wooden rammers.

When filling reaches finished level the surface shall be

flooded with water for at least 24 hours and allowed to dry and then rammed and

consolidated. The finished level of filling shall be kept to shape intended to be

given to floor.

In case off large heavy duty flooring like factory flooring, the consolidation may

be done by power rollers,

where so specified. The extent of consolidation required, shall also be as

The excavated stuff of the selected type shall be allowed to be used in filling the

trenches and plinth. Under no circumstances black cotton soil be used for filling

Mode of Measurements & Payment:

The rate includes cost of collecting and carting brick bats/chhara with all lead and

labour required filling in trenches and plinth.

The rate shall be for a unit of one cubic meter.

Providing TMT Bars FE 500D reinforcement for R.C.C work, including Bending,

Binding and Placing in position complete up to floor two level.(up to 10 ton)

The work shall consist of furnishing and placing reinforcement to the shape and

dimensions shown as on the drawings or as directed.

Steel shall be clean and free from rust and loose mill scale at the time of fixing in

position and subsequent concreting, Reinforcing steel shall conform accurately to

the dimensions given in the bar bending schedules shown on relevant drawings.

Bars shall be bent cold to specified shape and dimensions or as directed using a

proper bar bender, operated by hand or power to attain proper radius of bends.

Bars shall not be bent or straightened in a manner that will injure the material.

Bars bent during transport o handling shall be straightened before being used on

me work. They shall not be heated to facilitate bending.

Unless otherwise specified, a ‘U’ type hook at the end of each bar shall invariably

be provided to main reinforcement. The radius of the bend shall not be less than

twice the diameter of the round bar and the length of straight part of the bar

beyond the end of the curve shall be at least four times the diameter of the round

In case of bars which are not round and in case of deformed bars, the diameter

shall be taken as the diameter of circle having an equivalent effective area. The

hooks shall be suitably encased to prevent any splitting of the concrete.

All the reinforcement bars shall be accurately placed in exact position shown on

the drawing sand shall be securely held in position during placing of concrete by

annealed binding wire not less than 1 mm. in size, and by using stay blocks or

metal chair spacers, metal hangers, supporting wires or other approved devices at

Sufficiently-Close intervals.

Bars shall not be allowed to sag between supports nor displaced during

concreting or any other operations of the work. All devices used for positioning

shall be of non-corrodible material. Wooden and metal supports shall not extend

to the surface of concrete, except where shown on drawings.

Placing bars on layers of freshly laid concrete as the work progresses for adjusting

bar spacing shall not allowed. -Pieces of broken stone or brick and wooden blocks

shall not be used. Layers of bars shall be separated by spacer bars, precast mortar

blocks or other approved devices.

Reinforcement after being placed in position shall be maintained in a clean

condition until completely embedded m concrete. Special care shall be exceeded

to prevent any displacement of reinforcement in concrete already placed. To

prevent reinforcement from corrosion, concrete cover shall be provided as

indicated on drawing.

All the bars protruding from concrete and to which other bars are to be spliced

and which are likely to be exposed for a period exceeding 10 days shall be

protected by a thick coast of neat cement grout.

Bars crossing each other where required shall be secured by binding wiles

(annealed) of size not less than I mm. in such manner that they do not slip over

each other at the time of fixing and concreting. As far as possible, bars of full

length shall be used. In case this is not possible, overlapping of bars shall be done

When practicable, overlapping bars shall not touch each other, but be kept apart

by 25 mm. or1.25 times the maximum size of the coarse aggregate whichever is

greater by concrete between them.

Where not feasible, overlapping bars shall be bound with annealed wires not less

than 1 mm. thick twisted tight The overlaps shall be staggered for different bears

and located at points along the span where neither shear nor bending movement

Whenever indicated on the drawings or desired by the Engineer-in-charge, bars

shall be joined by couplings which shall have a cross-section sufficient to transit

the full stresses of bars.

The ends of the bars that are joined by coupling shall be upset for sufficient

length so that the effective cross section at the base of threads is not less than

normal cross-section of the bar. Threads shall be standard threads. Steel for

coupling shall conform to I.S.

When permitted or specified on the drawings, joints of reinforcement bars shall

be butt- welded so as to transmit their full stresses.

Welded joints shall preferably be located at points when steel will not be subject

to more than 75 per cent of the maximum permissible stresses and welds so

staggered that at any one section not more than 20 percent of the rods are

Only electric arc welding using a process which excludes air from the molten

metal and conforms to any or all other special provisions for the work shall be

accepted. Suitable means shall be provided for holding bars securely in position

during welding.

It shall be ensured that no voids are left in welding and when welding is done in

two or three stages, previous surface shall be cleaned properly. Ends of the bars

shall be cleaned of all loose scale, rust, grease, paint and other foreign matter

before welding.

Only competent welders shall be employed on the work. The M.S. electrodes

used for welding shall conform to I.S. 814. Welded pieces of reinforcement shall

be tested. Specimen shall be taken from the actual site and their number and

frequency of test shall be as directed.

Mode of measurement and payment:

For the purpose of calculating consumption, wastage shall not be permitted

beyond 5 percent. Excess consumption over 5% will be charged at penal rate.

Reinforcement shall be measured in length including overlaps, separately for

different diameters as actually used in the work.

Where welding or coupling is resorted to, in place of lap joints, such joints shall be

measured for payment as equivalent length of overlap as per design requirement.

From the length so measured, the weight of reinforcement shall be calculated in

tones on the same basis even though steel is supplied to the contractor by the

department on actual weight. Length shall include hooks at the ends.

Wastage and annealed steel wire for binding shall not be measured and the cost

of these items shall be deemed included in the rate for reinforcement.

The rate for reinforcement includes cost of steel binding wires its carting from

Department a store to work site., cutting, bending, placing; binding and fixing in

position as shown on the drawings and as directed.

It shall also include all devices for keeping reinforcement in approved position,

cost of joining as per approved method and all wastage and spacer bars.

The rate shall be for a unit of one Kg.

Clearing and grubbing road land including uprooting rank vegetation grass

bushes,shrubs,sapling and trees girth up to 300 mm removal of stumps of trees

cut earlier and disposal of unserviceable materials(A) By manual means in area

of light jungle

• Cutting and removing:

o Bushes and shrubs

o Rank vegetation

o Trees up to 300 mm girth

o Stumps of previously cut trees

• Disposal of waste material:

o As directed by Engineer

• Light jungle:

o Sparse vegetation

o Small bushes and thin tree growth

o No dense forest conditions

• Work carried out manually using:

o Other hand tools

• Unserviceable materials:

o Removed from site

o Disposed at designated location

• Serviceable materials:

o Handled as directed

Important Conditions

• Entire area must be:

o Cleared properly

o Free from roots and stumps

• Ground surface:

o Left clean and ready for further work

Measurement & Payment

o Square meters (m²)

• Payment includes:

o Uprooting and disposal

Key Points (For Exams)

• Manual operation

• Light jungle condition

• Tree girth limit: ≤ 300 mm

• Includes stump removal

Providing 20mm thick cement plaster in single coat on single or half

brick/concrete walls for interior plastering upto floor two level and finished

even and smooth in (ii) Cement mortar 1:4 (1-cement :4-sand)

• Surface preparation (cleaning, hacking if needed)

• Wetting the surface

• Applying cement plaster (20 mm thick)

• Leveling and smoothing with trowel

• Curing the plaster

• Fine sand (clean, well-graded)

Mix proportion:

• 1 : 4 (cement : sand)

Thickness & Finish

• Thickness: 20 mm (single coat)

o Suitable for painting or finishing

• Interior walls

• Up to second floor level

Method of Execution

• Apply plaster in one layer

• Maintain uniform thickness using screeds

• Proper finishing with wooden/steel float

• Keep surface moist for curing (minimum 7 days)

Important Conditions

• Surface must be:

o Clean and dust-free

o Properly roughened (for bonding)

• Joints in brickwork should be raked

• No cracks or unevenness allowed

Measurement & Payment

o Square meters (m²)

• Rate includes:

o Scaffolding (up to specified height)

Key Points (Exam Notes)

• Thickness: 20 mm

• Single coat plaster

Dewatering by pumping set of required capacity including temporary platform,

carting, pumping at site and fixing the same in position including all accessories,

fuel, labour, maintenance, and all incidental charges complete.

The work shall consist of dewatering of excavations, trenches, foundations,

drains, culverts, and all other work areas where accumulation of groundwater,

seepage water, rainwater, or any other water may affect the progress, quality, or

safety of the works.

The Contractor shall provide pumping sets of adequate capacity and number, as

required to maintain the work area in a dry and workable condition throughout

the execution period. The Contractor shall make all arrangements for installation,

operation, maintenance, shifting, and removal of pumping equipment.

The scope of work shall include but not be limited to:

• Supplying, transporting, installing, operating, maintaining, shifting, and

removing pumping sets of suitable capacity.

• Providing temporary platforms, supports, foundations, or arrangements

necessary for proper installation and operation of pumps.

• Supplying and laying suction pipes, delivery pipes, hoses, fittings, valves, clamps,

strainers, and all accessories required for efficient pumping operations.

• Continuous pumping, whenever required, to keep excavations and construction

areas free from water.

• Disposal of pumped water to approved locations without causing damage,

flooding, erosion, nuisance, obstruction, or inconvenience to adjoining properties,

roads, utilities, or structures.

• Provision of fuel, lubricants, power supply, operators, helpers, watch and ward

staff, and all consumables required for uninterrupted operation.

• Maintenance and repair of pumping equipment during the entire period of

• Compliance with all environmental, safety, and statutory requirements.

Materials & Workmanship

The pumping equipment shall be of sound condition and adequate capacity to

effectively handle the anticipated inflow of water. Pumps shall be maintained in

efficient working condition throughout the operation period.

The Contractor shall ensure that dewatering operations do not cause instability,

settlement, erosion, undermining, damage to adjacent structures, roads, utilities,

foundations, or completed works.

The Contractor shall make standby arrangements whenever necessary to avoid

interruption of dewatering operations. Any damage resulting from inadequate

dewatering shall be made good by the Contractor at his own cost.

Dewatering operations shall be carried out continuously as directed by the

Engineer-in-Charge until the work has progressed sufficiently to permit

discontinuation of pumping.

Dewatering Register

The Contractor shall maintain a Dewatering Register at site in a format approved

by the Engineer-in-Charge. The register shall be produced whenever required for

verification and payment purposes.

The register shall contain the following details:

• Location of pumping

• Description of work area

• Pump identification number

• Pump capacity (HP)

• Start time of pumping

• Stop time of pumping

• Total operating hours

• HP-Hours (Pump HP × Operating Hours)

• Water level observations, if required

• Signature of Contractor's representative

• Signature of Engineer's representative / PMC representative

The Contractor shall submit the Dewatering Register periodically along with

running account bills. Only verified and approved records shall be considered for

Mode of Measurement and Payment

Measurement shall be made in HP-Hours (HP/Hr) based on the actual pumping

capacity of the approved pump and the actual operating hours recorded in the

Dewatering Register and verified by the Engineer-in-Charge.

HP-Hours shall be calculated as:

HP-Hours = Pump Capacity (HP) × Actual Operating Hours

Payment shall be made only for approved pumping operations necessary for

execution of the work and duly recorded in the Dewatering Register.

The rate shall include the cost of pumping equipment, transportation, installation,

temporary platforms, fuel, power, lubricants, operators, labour, maintenance,

repairs, pipes, fittings, accessories, disposal of pumped water, record keeping,

removal of equipment after completion, and all incidental charges necessary for

satisfactory completion of the work.

No separate payment shall be made for standby pumps, temporary

arrangements, fuel consumption, maintenance, breakdowns, supervision, or any

allied operations.

The rate shall be for one HP-Hour of completed and approved dewatering work.

Dewatering Register Format

The Contractor shall maintain a Dewatering Register at site in the following format or any other

format approved by the Engineer-in-Charge:

Pump Contractor Engineer/PMC

Sr. Location of Pump ID / Start Stop Operating Hours

Date Capacity Remarks Representative Representative

No. Dewatering Description Time Time Hours (HP ×

(HP) Signature Signature

Illustrative Example

Contrac Engineer

Sr. Location of Pump ID / Start Stop Hours Represe Represen

Date Capacit ng Remarks

No. Dewatering Description Time Time (HP × ntative tative

Hours) Signatur Signatur

06- Diesel 08:0 06:0 dewatering

202 Pump No. 1 0 AM 0 PM of

06- Diesel 08:0 05:0 Normal

202 Pump No. 1 0 AM 0 PM operation

06- Diesel 09:0 06:0

3 0+450 to 15 HP 9.00 135.00 seepage

202 Pump No. 2 0 AM 0 PM

Total HP-Hours = 325.00 HP-Hr

The Dewatering Register shall be maintained on a daily basis and shall be jointly verified by the

Contractor's representative and the Engineer/PMC representative. Payment shall be based on

the approved HP-Hours recorded in the register.

Providing and filling rubbles including hand packing and filling interstices with

quarry spalls behind abutments and between returns as directed.

Materials & Workmanship

The work shall consist of providing, supplying, transporting, placing, hand packing,

and filling rubble stones with quarry spalls behind abutments, return walls,

retaining structures, wing walls, culverts, bridge structures, and other locations as

shown on the drawings or as directed by the Engineer-in-Charge.

Rubble stones shall be hard, sound, durable, dense, and obtained from approved

quarries. The stones shall be free from cracks, weathered surfaces, clay, organic

matter, dust, and other deleterious substances. Quarry spalls used for filling

interstices shall also be of approved quality and free from dirt and foreign matter.

The area to receive rubble filling shall be prepared to the required lines, levels,

grades, and dimensions and shall be approved by the Engineer-in-Charge before

commencement of the work.

The rubble stones shall be carefully placed in position and hand packed to form a

compact and stable mass. Larger stones shall be placed first and properly bedded.

The stones shall be arranged so as to achieve maximum interlocking and

After placing the larger stones, all interstices and voids shall be thoroughly filled

with approved quarry spalls. The spalls shall be inserted manually and compacted

so as to ensure complete filling of gaps and formation of a dense and stable

The finished rubble filling shall be properly dressed to the required profile,

dimensions, slopes, and levels shown on the drawings or as directed by the

Engineer-in-Charge.

The rubble filling shall provide adequate drainage and prevent the development

of hydrostatic pressure behind the structure. The Contractor shall ensure that no

large cavities, loose stones, segregated pockets, or unstable portions remain

within the completed work.

The Contractor shall take all necessary precautions to prevent contamination of

the rubble filling with soil, clay, debris, organic matter, or other foreign materials

during construction.

Any defective, loose, displaced, damaged, or improperly packed rubble filling shall

be removed and reconstructed by the Contractor at his own cost to the

satisfaction of the Engineer-in-Charge.

The Contractor shall arrange all labour, tools, plants, equipment, transportation,

loading, unloading, stacking, handling, and incidental works required for

satisfactory completion of the item.

The work shall be executed in accordance with the relevant provisions of MORTH

Specifications, IRC Codes, approved drawings, and directions of the Engineer-in-

Mode of Measurement and Payment

Measurement shall be made in cubic metres (m³) of completed rubble filling

measured in position and accepted by the Engineer-in-Charge.

The quantity shall be calculated from the dimensions shown on the approved

drawings or from actual measurements recorded at site.

No deduction shall be made for normal voids occurring within the rubble filling.

The rate shall include the cost of supplying rubble stones and quarry spalls,

loading, transportation, unloading, stacking, placing, hand packing, filling

interstices, dressing, finishing, labour, tools and plants, machinery, royalties, leads

and lifts, wastage, testing (if required), and all incidental charges necessary for

satisfactory completion of the work.

No separate payment shall be made for quarry spalls, hand packing, sorting,

dressing, compaction, wastage, temporary works, dewatering, protection of work,

or any ancillary operations required for completion of the item.

The rate shall be for one cubic metre of completed and approved rubble filling.