Urgent Road safety work at approach of culvert no. 40/2 of NH-127C for the year 2023-24 (Samthaibari to Dadgiri) under Abhayapuri Construction Division in the state of Assam (charge to contingency of Job No.127C/AS/2020-21/216)

Amount

Excavation in Soil by Manual Means. (a) (Excavation for roadway in soil using manual means including loading in truck for carrying of cut earth to embankment site with all 'lifts and leads .)

By manual means

Construction of embankment with approved materials obtained from borrow pits, with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300 - 2 ( including land compensation of earth) as per MoRTH specification 305 including all leads and lift. (a) From Private Land

Construction of Sub grade and Earthen Shoulders with approved materials obtained from borrow pits, with initial lead up to 3.00 Km. transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300 - 2( including land compensation of earth) as per MoRTH specification 305. including all leads and lift. (a) From Private Land

Boulder apron laid in wire crates (Providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh '(weaved diagonally) including 10% extra for laps and joints laid with stone boulders weighting not less than 40Kg each including all leads and lift.)

Granular Sub-Base with Coarse Graded Material ( Table:- 400- 2) (Construction of granular sub-base by providing coarse graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC,and compacting with vibratory roller to achieve the desired density,complete as per cl. 401 including all leads and lift. for grading-II Material

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 sb-base/base course on well prepared surface and compacting with vibratory roller to achieve the desired density ( including carriage from quarry and carriage of mixed materials to to worksite from mixing plant ) with all leads and lits

Prime Coat : Providing and applying Primer Coat with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 1kg/sqm using mechanical means.conforming as per clause 502 of MoRT&H specification for Road and Bridge works ( 4th Revision ,2001)by mechanical means complete as directed by the Deptt. (ii) With bitumen emulsion-CSS-1 (IS:8887-2004)

Tack Coat: Providing and applying Tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous/granular surface cleaned with mechanical broom.conforming as per clause 503 of MoRT&H specification for Road and Bridge works ( 5th Revision ,2013)by mechanical means complete as directed by the Deptt. (I)With Bitumen emulsion CSS-1h, (c) Dry & hungry bituminous surface

Open - Graded Premix Surfacing (Providing, laying and rolling of open - graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or cut-back or emulsion to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a smooth wheeled roller 8-10 tonne capacity, finished to required level and grades) (including carriage from quarry to plant site and carriage of mixed materials from mixing plant to worksite)including all leads and lifts (Including cost of testing of materials at site and laboratory as directed by the deptt.) B. With anti stripping agent as per IS:14982 (Refer Appendix-5 of MoRT&H specification) I) Mechanical method using Penetration grade Bitumen (60/70 or VG-30Garde)and HMP of appropriate capacity not less than 75 tonnes / hour . At Culvert No. 40/2 of NH-127 C

Seal Coat : (Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A and B seal coats) (including all leads and lifts) (Including cost of testing of materials at site and laboratory as directed by the deptt.) B. With anti stripping agent as per IS:14982 (Refer Appendix-5 of MoRT&H specification) 'Case - I : Type A (Providing and laying liquid seal coat comprising of a layer of bituminous binder ( paving bitumen 60/70 or VG-30 grade, followed by a cover of crushed stone chipping of specified grade.( including carriage up to initial lead of 5.0 km from quarry ) At Culvert No. 40/2 of NH-127 C

Providing reflective pavement marker with Micro prismatic lens in both direction having thermoplastic body adhering to the specification and guidelines of MoSRT&H’s fixed to the road surface using the adhesives and the procedures recommended by the manufacturers with three months replacement warranty and free maintenance.

Retro reflectorised Traffic sign: Providing and erecting of Retro-Reflectrorised cautionary, mandatory & informatory sign as per IRC: 67 made of high intensity encapsulated lens type reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick fixed on an angle iron of 25x25x4mm supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly design foundation with M-15 grade Cement concrete 45cm x 45cm x 60cm, 60cm below ground level as per approved drawing and sign. ( All the Steel work must be Tata/Sail/or any other approved brand)

iv )80cmm x 60 cm rectangular

iii) . 60cm Circular

Direction and place identification sign more than 0.9sqm size board. Providing and erecting direction and place identification retro-Reflectrorised sign as per IRC:67 made of encapsulated lens type reflective sheeting vide clause 801.3 fixed over aluminium sheeting, 2mm thick with area not exceeding 0.9sqm fixed on an angle iron of 25x25x4mm supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly design foundation with M-15 grade Cement concrete 45cm x 45cm x 60cm, 60cm below ground level as per approved drawing and sign. ( All the Steel work must be Tata/Sail/or any other approved brand)

Single bamboo spur and palasiding of whole 1st class bamboo (Bholuka or Barua) 85mmto 100mm dia closely packed & driven , including fitting and fixing with half 2nd class bamboo (Jati or Bethua) horizantallyin three rows with the cane or tieing wire complete and struts 1500 mm apart longitudinallyand providing brush wood as per drawing and technical specification .

A. Driven at least 900mm below and 1800 mm above the ground on average.

Placing of filled sand bag as required at site and as directed by the department

RAHUL KALITA