NIT NO. E.E./F-03(4)/2026-2027/24 Dated 10.04.2026

DETAILED ESTIMATE OF PROPOSED 6.00 M WIDE CEMENT CONCRETE ROAD WITH DRAIN AT COLLEGE OF VETERINARY SCIENCE & ANIMAL HUSBANDRY, BILASPUR CHHATTISGARH

C.G. P.W.D. S.O.R.- SCHEDULE OF RATES FOR ROAD WORKS FOR PUBLIC WORKS DEPARTMENT IN FORCE FROM 01-01-2015

S.No. S.O.R. No. PARTICULARS UNIT QTY RATE AMOUNT

1 3.2 Excavation in Soil (by Mechanical Means.) Excavation for roadway in soil using mechanical means including loading in tipper for carrying of cut earth to embankment site and unloading with all lifts and lead upto 1000 meters as per relevant clauses of section 300.

2 3.13 Construction of Embankment with Material Deposited from Roadway Cutting (Construction of embankment with approved materials having C.B.R.>5 (unless specified otherwise in the contract) deposited at site from roadway cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of table 300-2)

3 4.1 Granular Sub-base as per Table:- 400-1 Construction of granular sub-base by providing graded Material, , carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface watering, rolling and compacting with vibratory power roller at OMC to achieve the desired density, complete as per clause 401

B By Mix in place method

Disintegrated rock i.e moorum having CBR value not less than 20 and P.I. and L.L. not more than 6 and 20 respectively. (For Village roads only)

4 4.10 Wet Mix Macadam (Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per clause 406.)

5 6.2 Cement Concrete Pavement (Construction of un-reinforced, dowel jointed, plain cement concrete pavement as per IRC:58 over a prepared sub-base, coarse and fine aggregate conforming to IS:383 and graded as per table 600-3 mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, dowel bar, tie rod, admixtures as approved, curing compound, finishing to lines and grades as per drawing as per clause 602.)

(ii) With Cement concrete grade M-30 and minimum cement content @ 375 kg/cum.

6 4.13 Construction of Shoulders (Construction of shoulders as per clause 408 with selected soil from borrow pits / borrow areas having CBR not less than 12 and shall have L.L. and P.I. not more than 25% and 6% respectively, inclusive of all leads and lifts, including clearing and scrapping of existing surface, providing required cross fall, compacting. watering rolling and royalty charges etc. complete

7 3.19 ( a ) ( i ) Construction of RCC open Drain…and technical specification. Rmt 100.00 6164.00 616400.00

Total 1474360.00

Add 2 % for Contingencies 29487.20

Total Rs 1503847.20

For 100.00 M Length SAY Rs 1503847.00

For 1020.0 M Length 13835392.40

( RUPEES CRORE THIRTY EIGHT LAKH ONLY )

STREET LIGHT ESTIMATE OF CAMPUS OF NEW VETY SCI. AND ANIMAL HUSBANDARY COLLEGE BILASPUR

SOR W.E.F- 1.7.2015

S.NO SOR NO. PARTICULAR UNIT RATE QTY AMOUNT

1 8.30 Supplying, installation, testing and commissioning of following 230/250 volts LED street light fitting with all accessories like driver, heat sink made of die cast aluminium with IP 66 protection and 5 KV surge protection on pole bracket complete as required and furnishing 2 Yrs Guarantee certificate from manufacturer.

2 21.7 Supply of hot dipped galvanized (in single dip to average 70 micron) octoganal pole made of 3mm thick steel plate having base plate 240x240x16mm, window and flush cover with locking arrangement at suitable height from base for cable termination block, pole suitably reinforced with welded steel section at window cut section to make the strength of pole unaffected, including template and anchor plate 240x240x3mm with 4 nos 20mm dia 700mm long foundation bolts (EN8 grade).

21.7.2 8 metre high, minimum dia 150mm at bottom and 70mm at top Each 11322.00 18 203796

3 21.9 Supply and fixing following street light pole bracket on existing pole made out of 50 mm dia MS "B" class pipe welded to 300 mm long MS pole canopy of suitable dia at a angle of 102.50 including having MS triangular stiffner of size 150 X 50 X 5 mm thick, making arrangement for tightening the bracket with pole by providing suitable size heavy duty nuts and bolts in canopy, painting with one coat of approved steel primer etc. as required.

21.9.6 Double Over Hang 1.50 metre Long Each 1796.00 18 32328

4 17.3 Supplying and laying following sizes one number PVC insulated/ XLPE, PVC sheathed, steel armoured, aluminium conductor power cable of 1.1 KV grade in existing RCC/ HUME/ STONEWARE/ METAL/ HDPE pipe as required.

5 16.2 Supplying and laying HDPE pipe of 4kg/sqcm in ground below road, path etc at a depth not less than 40 cm and upto 90 cm including excavation, dismantling of road if required and refilling the trench with excavated material, ramming and making the surface good etc. as required.

16.2.1 63 mm outer dia Metre 140.00 900 126000

6 9.8 Supplying and fixing metal clad busbar chamber made of 1.6 mm thick CRCA sheet with 4 strip copper busbars of following capacity and length, complete with all accessories, including earthing the body etc. as required.

9.8.5 200 amps x 450mm long Each 3531.00 2 7062

7 9.19 Fabrication, supply, installation, testing and commissioning of cubicle type compartmentalized wall/ floor mounted power cum control panel board of specified size and following depth made out of not less than 2 mm thick CRCA MS sheet with suitable size compartments for bus bars, switchgears and necessary cutouts for voltmeters, ammeters etc as per specifications including powder coating painting but without busbars, switchgears and other accessories etc complete as required. (Only face area is to be measured)

9.19.1 Upto 300 mm deep sqm 6492.00 4 25968

8 9.10 Providing and fixing metal clad, TP&N switch fuse unit (re-wirable), 415/500 volts, with porcelain re-wireble fuses including drilling holes on the board, connections, earthing the body etc. as required. (Thimbeling shall be paid separately).

9 11.11 Supplying and fixing SP MCB, 240 volts, 'C' curve, suitable for inductive load in the existing MCB DB complete with connections, testing and commissioning etc. as required.

11.11.2 6 amps to 32 amps Each 154.00 45 6930

10 11.16 Supplying and fixing TP&N MCB, 440 volts, 'C' curve, suitable for lighting and other loads in the existing MCB DB complete with connections, testing and commissioning etc. as required.

11 5.11 Supplying and drawing following sizes of FR PVC insulated copper conductor, single core cable in the existing surface/ concealed, steel/ PVC conduit/ PVC casing caping as required.

12 14.4 Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe, with charcoal and salt as required. Set 6754.00 3 20262

12 14.5 Supplying and laying 8 SWG copper wire at 0.50 metre below ground level for conductor earth electrode, including soldering etc. as required. Metre 76.00 150 11400

14 16.5 Supplying and fixing G.I. pipe along with wall or pole/ support with 2 Nos MS clamps for protection of under ground cable in approved manner including bolts and nuts or metal dash fasteners complete as required.

15 11.1 Providing and fixing following rating and breaking capacity MCCB in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

11.1.4 3 pole MCCB, 100A, Adjustable Thermal - Magnetic Release, 25KA Each 3898.00 2 7796

16 12.17 Providing and fixing penal mounting 230 volt LED type indicating lamp in existing cubical panel including, connections, testing and commissioning etc. as required. Each 89.00 3 267

17 12.19 Providing and fixing penal mounting following rating digital type ammeter of size 100x100 (NS) in existing cubical panel including, connections, testing and commissioning etc. as required.

18 12.20 Providing and fixing penal mounting 0-500 volt voltmeter of size 100x100 (NS) in existing cubical panel including, connections, testing and commissioning etc. as required.

12.20.2 Digital type Each 902.00 1 902

19 12.21 Providing and fixing penal mounting selector switch in existing cubical panel including, connections, testing and commissioning etc. as required.

12.21.1 For voltmeter Each 162.00 1 162

12.21.2 For ammeter Each 260.00 1 260

20 12.22 Providing and fixing following Time switch (timer) in existing panel including connection, testing and commissioning as required.

12.22.1 Digital type Each 2070.00 2 4140

21 21.11 Erection of GI octogonal/ tubular pole on existing cement concrete foundation having grouted bolts and nuts, aligning in true vertical position as required.

21.11.6 8 metre high Each 823.00 18 14814

22 21.12 Designing and providing suitable RCC foundation in Cement Concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20 mm nominal size) for 3 mere to 12 metre high GI octagonal pole including steel reinforcement (minimum 90kg per cum), form work, embeding 2 nos 50mm dia PVC pipe for cable entry in each foundation, excavation disposal of surplus soil and curing etc. as required. cum 4906.00 4.6 22567.6

23 21.18 Supplying erection testing and commissioning of hot dipped galvanised (single dip) 16 metre High mast pole on existing RCC foundation with all accessories and equipments, main detailed as below to withstand max wind pressure as per IS 875 Part-3: a) HM shaft made of approx weight 340 kg, sheet thickness 3 & 4 mm, nominal dia 360mm on bottom and 150 mm on top, base plate 25mm thick 520mm dia, approved no of sections (not more than 2) having suitable sectional lengths with slip joints between sections without any circumpherencial welding. b) Double drum winch with Integral single phase power tool (electrical) for lowering & raising of lantern carriage on high mast with separate handle for manual operation of winch with a torque limiting device for safe locking of carriage. c) Raising/lowering type lantern carriage designed to carry specified nos of luminaries, control gear box, junction box. d) Top pulley assemble with weather proof cover. e) Necessary suitable length and size stainless steel wire ropes (minimum 6mm dia and 7/19 construction) for lowering & rising of lantern carriage. f) Suitable size and length multicore flexible copper power trailing cable (minimum 6 sqmm) g) Hinged service door in base section h) Base plate earthing terminal. i) Suitable arrangement for supply distribution with termination of suitable size underground cable in high mast. j) Lightning conductor finial made of 25mm dia 300 mm long G.I.tube having single prong. k) Anchor plate, tem-plates, GI foundation bolts min 6 Nos of 24mm dia 750 mm long (EN 8 Grade) along with nuts washers etc. (RCC fooundation and luminaries will be paid separately) Each 231425.00 1 231425

24 8.26 Supplying, installation, testing and commissioning of following 230/250 volts metal halide wide beam flood light luminaries with weather proof gear box, igniter, capacitor with IP 66 protection on wall surface/ building parapet/ pole bracket complete but without lamp as required.

25 8.34 Supplying, fixing, testing and commissioning of following 230/250 volts metal halide lamp in existing lighting luminaries fixed on pole/ wall/ roof etc as required.

26 8.38 Supplying, fixing, testing and commissioning of approved make following 230/250 volts polyester filled copper wound ballast in existing luminaries at all locations as required.

8.38.4 For 250 watt HPSV/ Metal halide fitting Each 2012.00 10 20120

27 21.21 Designing and providing suitable and approved size RCC foundation for 15-30 mere high mast including seel reinforcement (minimum 90kg per cum), form work, embeding 2 nos 50mm dia PVC pipe for cable entry in each foundation, excavation disposal of surplus soil and curing etc. as required including laying and fixing HM foundation bolts with tam plates but excluding the cost of foundation bolts with tam plates etc complete as required. cum 4906.00 2.5 12265

TOTAL 1744805.6

STREET LIGHT ESTIMATE OF CAMPUS OF NEW VETY SCI. AND ANIMAL HUSBANDARY COLLEGE BILASPUR

PWD SOR ( ELECTRICAL ) W.E.F- 1.7.2015

S.NO SOR NO. PARTICULAR UNIT QTY

1 8.30 Supplying, installation, testing and commissioning of following 230/250 volts LED street light fitting with all accessories like driver, heat sink made of die cast aluminium with IP 66 protection and 5 KV surge protection on pole bracket complete as required and furnishing 2 Yrs Guarantee certificate from manufacturer.

8.30.4 90 watt Each 36

2 21.7 Supply of hot dipped galvanized (in single dip to average 70 micron) octoganal pole made of 3mm thick steel plate having base plate 240x240x16mm, window and flush cover with locking arrangement at suitable height from base for cable termination block, pole suitably reinforced with welded steel section at window cut section to make the strength of pole unaffected, including template and anchor plate 240x240x3mm with 4 nos 20mm dia 700mm long foundation bolts (EN8 grade).

21.7.2 8 metre high, minimum dia 150mm at bottom and 70mm at top Each 18

3 21.9 Supply and fixing following street light pole bracket on existing pole made out of 50 mm dia MS "B" class pipe welded to 300 mm long MS pole canopy of suitable dia at a angle of 102.50 including having MS triangular stiffner of size 150 X 50 X 5 mm thick, making arrangement for tightening the bracket with pole by providing suitable size heavy duty nuts and bolts in canopy, painting with one coat of approved steel primer etc. as required.

21.9.6 Double Over Hang 1.50 metre Long Each 18

4 17.3 Supplying and laying following sizes one number PVC insulated/ XLPE, PVC sheathed, steel armoured, aluminium conductor power cable of 1.1 KV grade in existing RCC/ HUME/ STONEWARE/ METAL/ HDPE pipe as required.

17.3.24 4 x 25 sq. mm. Metre 1000

5 16.2 Supplying and laying HDPE pipe of 4kg/sqcm in ground below road, path etc at a depth not less than 40 cm and upto 90 cm including excavation, dismantling of road if required and refilling the trench with excavated material, ramming and making the surface good etc. as required.

16.2.1 63 mm outer dia Metre 900

6 9.8 Supplying and fixing metal clad busbar chamber made of 1.6 mm thick CRCA sheet with 4 strip copper busbars of following capacity and length, complete with all accessories, including earthing the body etc. as required.

9.8.5 200 amps x 450mm long Each 2

7 9.19 Fabrication, supply, installation, testing and commissioning of cubicle type compartmentalized wall/ floor mounted power cum control panel board of specified size and following depth made out of not less than 2 mm thick CRCA MS sheet with suitable size compartments for bus bars, switchgears and necessary cutouts for voltmeters, ammeters etc as per specifications including powder coating painting but without busbars, switchgears and other accessories etc complete as required. (Only face area is to be measured)

9.19.1 Upto 300 mm deep sqm 4

8 9.10 Providing and fixing metal clad, TP&N switch fuse unit (re-wirable), 415/500 volts, with porcelain re-wireble fuses including drilling holes on the board, connections, earthing the body etc. as required. (Thimbeling shall be paid separately).

9.10.4 200 amps Each 1

9 11.11 Supplying and fixing SP MCB, 240 volts, 'C' curve, suitable for inductive load in the existing MCB DB complete with connections, testing and commissioning etc. as required.

11.11.2 6 amps to 32 amps Each 45

10 11.16 Supplying and fixing TP&N MCB, 440 volts, 'C' curve, suitable for lighting and other loads in the existing MCB DB complete with connections, testing and commissioning etc. as required.

11.16.5 63 amps Each 4

11 5.11 Supplying and drawing following sizes of FR PVC insulated copper conductor, single core cable in the existing surface/ concealed, steel/ PVC conduit/ PVC casing caping as required.

5.11.12 3 x 2.5 sq. mm Metre 450

5.11.20 3 x 4 sq. mm Metre 250

12 14.4 Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe, with charcoal and salt as required. Set 3

12 14.5 Supplying and laying 8 SWG copper wire at 0.50 metre below ground level for conductor earth electrode, including soldering etc. as required. Metre 150

14 16.5 Supplying and fixing G.I. pipe along with wall or pole/ support with 2 Nos MS clamps for protection of under ground cable in approved manner including bolts and nuts or metal dash fasteners complete as required.

16.5.1 32 mm dia Metre 50

15 11.1 Providing and fixing following rating and breaking capacity MCCB in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

11.1.4 3 pole MCCB, 100A, Adjustable Thermal - Magnetic Release, 25KA Each 2

16 12.17 Providing and fixing penal mounting 230 volt LED type indicating lamp in existing cubical panel including, connections, testing and commissioning etc. as required. Each 3

17 12.19 Providing and fixing penal mounting following rating digital type ammeter of size 100x100 (NS) in existing cubical panel including, connections, testing and commissioning etc. as required.

12.19.3 0-200 amps Each 1

18 12.20 Providing and fixing penal mounting 0-500 volt voltmeter of size 100x100 (NS) in existing cubical panel including, connections, testing and commissioning etc. as required.

12.20.2 Digital type Each 1

19 12.21 Providing and fixing penal mounting selector switch in existing cubical panel including, connections, testing and commissioning etc. as required.

12.21.1 For voltmeter Each 1

12.21.2 For ammeter Each 1

20 12.22 Providing and fixing following Time switch (timer) in existing panel including connection, testing and commissioning as required.

12.22.1 Digital type Each 2

21 21.11 Erection of GI octogonal/ tubular pole on existing cement concrete foundation having grouted bolts and nuts, aligning in true vertical position as required.

21.11.6 8 metre high Each 18

22 21.12 Designing and providing suitable RCC foundation in Cement Concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20 mm nominal size) for 3 mere to 12 metre high GI octagonal pole including steel reinforcement (minimum 90kg per cum), form work, embeding 2 nos 50mm dia PVC pipe for cable entry in each foundation, excavation disposal of surplus soil and curing etc. as required. cum 4.6

23 21.18 Supplying erection testing and commissioning of hot dipped galvanised (single dip) 16 metre High mast pole on existing RCC foundation with all accessories and equipments, main detailed as below to withstand max wind pressure as per IS 875 Part-3: a) HM shaft made of approx weight 340 kg, sheet thickness 3 & 4 mm, nominal dia 360mm on bottom and 150 mm on top, base plate 25mm thick 520mm dia, approved no of sections (not more than 2) having suitable sectional lengths with slip joints between sections without any circumpherencial welding. b) Double drum winch with Integral single phase power tool (electrical) for lowering & raising of lantern carriage on high mast with separate handle for manual operation of winch with a torque limiting device for safe locking of carriage. c) Raising/lowering type lantern carriage designed to carry specified nos of luminaries, control gear box, junction box. d) Top pulley assemble with weather proof cover. e) Necessary suitable length and size stainless steel wire ropes (minimum 6mm dia and 7/19 construction) for lowering & rising of lantern carriage. f) Suitable size and length multicore flexible copper power trailing cable (minimum 6 sqmm) g) Hinged service door in base section h) Base plate earthing terminal. i) Suitable arrangement for supply distribution with termination of suitable size underground cable in high mast. j) Lightning conductor finial made of 25mm dia 300 mm long G.I.tube having single prong. k) Anchor plate, tem-plates, GI foundation bolts min 6 Nos of 24mm dia 750 mm long (EN 8 Grade) along with nuts washers etc. (RCC fooundation and luminaries will be paid separately) Each 1

24 8.26 Supplying, installation, testing and commissioning of following 230/250 volts metal halide wide beam flood light luminaries with weather proof gear box, igniter, capacitor with IP 66 protection on wall surface/ building parapet/ pole bracket complete but without lamp as required.

8.26.3 1x250 watt Each 10

25 8.34 Supplying, fixing, testing and commissioning of following 230/250 volts metal halide lamp in existing lighting luminaries fixed on pole/ wall/ roof etc as required.

8.34.3 250 watt (T) Each 10

26 8.38 Supplying, fixing, testing and commissioning of approved make following 230/250 volts polyester filled copper wound ballast in existing luminaries at all locations as required.

8.38.4 For 250 watt HPSV/ Metal halide fitting Each 10

27 21.21 Designing and providing suitable and approved size RCC foundation for 15-30 mere high mast including seel reinforcement (minimum 90kg per cum), form work, embeding 2 nos 50mm dia PVC pipe for cable entry in each foundation, excavation disposal of surplus soil and curing etc. as required including laying and fixing HM foundation bolts with tam plates but excluding the cost of foundation bolts with tam plates etc complete as required. cum 2.5

CONSTRUCTION OF PROPOSED 12.00 M WIDE CEMENT CONCRETE ROAD WITH 1.0 M DIVIDER AT COLLEGE OF VETERINARY SCIENCE & ANIMAL HUSBANDRY, BILASPUR. CHHATTISGARH

C.G. P.W.D. S.O.R.- SCHEDULE OF RATES FOR ROAD WORKS FOR PUBLIC WORKS DEPARTMENT IN FORCE FROM 01-01-2015

S.No. S.O.R. No. PARTICULARS UNIT QTY

1 3.2 Excavation in Soil (by Mechanical Means.) Excavation for roadway in soil using mechanical means including loading in tipper for carrying of cut earth to embankment site and unloading with all lifts and lead upto 1000 meters as per relevant clauses of section 300.

2 3.13 Construction of Embankment with Material Deposited from Roadway Cutting (Construction of embankment with approved materials having C.B.R.>5 (unless specified otherwise in the contract) deposited at site from roadway cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of table 300-2)

3 4.1 Granular Sub-base as per Table:- 400-1 Construction of granular sub-base by providing graded Material, , carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface watering, rolling and compacting with vibratory power roller at OMC to achieve the desired density, complete as per clause 401

B By Mix in place method

Disintegrated rock i.e moorum having CBR value not less than 20 and P.I. and L.L. not more than 6 and 20 respectively. (For Village roads only)

4 4.10 Wet Mix Macadam (Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per clause 406.)

5 6.2 Cement Concrete Pavement (Construction of un-reinforced, dowel jointed, plain cement concrete pavement as per IRC:58 over a prepared sub-base, coarse and fine aggregate conforming to IS:383 and graded as per table 600-3 mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, dowel bar, tie rod, admixtures as approved, curing compound, finishing to lines and grades as per drawing as per clause 602.)

(ii) With Cement concrete grade M-30 and minimum cement content @ 375 kg/cum.

6 4.13 Construction of Shoulders (Construction of shoulders as per clause 408 with selected soil from borrow pits / borrow areas having CBR not less than 12 and shall have L.L. and P.I. not more than 25% and 6% respectively, inclusive of all leads and lifts, including clearing and scrapping of existing surface, providing required cross fall, compacting. watering rolling and royalty charges etc. complete

7 6.6 Providing and laying cement concrete for plain concrete/ reinforced concrete i/c form work, shuttering complete in as per drawings and specifications.( For Village roads)

(ii) P.C.C. M-15

8 3.20 (ii) Construction of RCC open drain 0.60m x 0.60m inside dimension lined with 120 mm thick RCC M-20 walls, 120 mm thick CC M-20 foundation, over 100 mm thick (Av) leveling course in PCC M-15 including excavation , dressing of sides and bottom, provision of HYSD reinforcement consisting 8 mm dia horizontal bars @ 150 mm c/c and L-shaped 8 mm dia vertical bars @ 150 mm c/c (L= 800 mm) including cutting , bending and binding wire, placing in position , providing shuttering and concreting by using concrete mixer, compaction by vibration etc complet

9 4.18 Providing and fixing kerb stones 100 mm thick and 600 mm wide chisel dressed cut stones fixed in CC 1:3:6 (block size 250 x 225 mm) including all excavation.

10 8.44 Providing and laying of a reinforced cement concrete pipe duct, 300 mm dia., across the road ( new construction ) , extending from drain to drain in cuts and toe of slopes to toe of slopes in fills, constructing head walls at both ends, providing a minimum fill of granular material over top and sides of RCC pipes as per IRC: 98- 2011, bedded on a 0.3 m thick layer of granular material free of rock pieces , outer to outer distance of pipes at least half dia of pipe subject to minimum 450 mm in case of double and triple row ducts , joints to be made leak proof, invert level of duct to be above higher than ground level to prevent entry of water and dirt, all as per IRC:98-2011 and approved drawings.