REHABILITATION OF BODHAL BRIDGE (AT KM 95.380) AND CHAMBAL MAJOR BRIDGE (AT KM 112.00) WITH WIDENING OF APPROACHES FROM KM 111/00 TO KM 111/864 ON NH-552 EXT. IN THE STATE OF RAJASTHAN (JOB NO. NH-552 EXTN./RJ/2024-25/856)

CHAMBAL MAJOR BRIDGE (AT KM 112+00)

PART - A : ROAD WORKS Clearing grass and removal of rubbish maximum 150mm thickness & dispose off up to a distance of 100 Meter outside the periphery of the area by manual means.

Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material up to a lead of 1000m including removal and disposal of top organic soil not exceeding in 150 mm thickness as per MoRTH specification clause 201 By mechanical Means. In area of light jungle

Earth work in excavation, including stacking/disposal of surplus material with all lifts and lead up to 50 meters, exclusive of compensation of earth [MoRTH specification : Clause 301 to 305] In ordinary Soil Mechanically by power shovel, including mechanical loading and carriage up to 50m.

Construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting by vibratory roller 8-10 Tonne to meet requirement of Table 300-2 including cost of compensation for earth taken from private land with ALL lead As per MoRTH specification Clause No. 305.

Construction of sub grade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to require slope and compacted by vibratory roller 8-10 Tonne to meet requirement of Table 300-2 as per MoRTH specification Clause No. 305.

Providing laying spreading and compacting specified graded sand, gravel (crushed stone) as per Table 400-1,400-2 or any other course material as per design mix, as per CBR in sub base course including premixing the material at OMC in wet mix plant, carriage of mixed material spreading in uniform layers with motor grader F.E loader on a prepared base and compacting with vibratory roller to achieve desired density (as per I.S.2720) including all material, labor, machinery, lighting guarding, barricading and maintenance of diversion complete.[MoRTH specification : Clause 401]. By mechanical means with all lead For Grading V Material

Providing, laying, spreading and compacting stone aggregate for Wet Mix Macadam (as per table 400-12 and 400-13) specification including premixing the material with water to OMC in wet mix plant as per approved design mix, carriage of mixed material by Tipper to site, laying in uniform layers with motor grader/Front end Loader/paver finisher, in sub base/ base course on a well prepared under base and compacting with vibratory roller to achieve the desired density including lighting, guarding, barricading and maintenance of diversion etc. (MoRTH specification : Clause 406 & Clause 112) by mechanical means with all lead .

Providing and laying Dense Bituminous Macadam on prepared surface with specified graded crushed aggregates as per table 500-8 & 500-10 and design mix for base/binder course including loading of material with Front end loader, heating of binder (including cost of anti-stripping compound wherever required) aggregate and filler as per table 500-9, in hot mix plant More than 60-90 TPH, transporting the mixed material by tippers and laying with sensor paver finisher as per clause 505.3.5 to the required level and grade rolling by self propelled power rollers and vibratory rollers or pneumatic tyred roller 150-250KN. TP=0.7MPa to achieve the desired density (approved by the department) but excluding cost of primer/tack coat. [MoRTH Specification : Clause 505 & 112] with all leads Grading I (37.50 mm nominal size) - Bitumen @ minimum 4% of mix using VG 40 ( thickness 75 - 100 mm )

Providing and laying bituminous concrete as per design mix on prepared surface with specified graded stone as per table 500-16 & 500-17 for wearing course including loading of aggregate with Front end loader and hot mixing of binder (including cost of anti-stripping compound, wherever required) and filler as per table 500-9 with aggregates in hot mix plant More than 60-90 TPH Transporting the mix material with tipper and laying with sensor paver finisher (as per clause 507.3.5) to the required level , grades and rolling with vibratory compactor and pneumatic tyred roller 150-250 KN,TP=0.7 Mpa, to achieve the desired density (approved by the department) excluding cost of primer/tack coat (MoRTH Specification : Clause -507 & 112) with all lead. Grading II (13.20 mm nominal size) - Bitumen @ minimum 5.40% of mix & thickness 30 - 40 mm VG 40 Grade