Flood Damage Repairs (FDR) 2025-26 For Permanent Protection Measures treatment for Critical Landslide Prone Spot by Constructing Retaining Structure at Km 94.020 to 94.030 on Rajewadi - Varandha Ghat Section of NH-965DD in Raigad District in the Stat

Supply and Installation of ISO Certified Self Drilling Anchors (SDA) - 38 mm diameter, made of 40CR material with yield load more than or equal to 400 kN shall be used, it shall have a minimum drill hole diameter of 76mm. The base plate shall be of size (min.) 200 X 200 X 10mm, which should be secured with hexagonal nut, washer plate, base plate, coupler for connecting bars, drill bit etc including grouting. The exposed part of SDA, nuts and bearing plate shall be protected with suitable corrosion protection coating and complete as per detailed technical specifications and as directed by Engineer - In - Charge.(horizontal)

Excavation for roadway in earth, soil of all sorts, sand, gravel or soft murum including dressing section to the required grade, camber and side slopes and conveying the excavated materials with all lifts upto a lead of 50m. and spreading for embankment or stacking as directed. By Manual Means.(Item used only when Quantity is below 10 Cu.m.) (Item No. 2.10)

Excavation for foundation in hard rock by chiselling and wedging or line drilling including shoring and strutting, dewatering as necessary and disposing off excavated stuff as directed etc. complete. a) Upto 1.50m lift Normal Rate b) 1.50m to 3.00m lift, Add 10% c) 3.00m to 4.50m lift, Add 20% d) 4.50m to 6.0m lift, Add 30% (Item No. 12.11)

Providing and laying in PCC M15 grade leveling course below approach slab complete with fully automatic micro processor PLC with SCADA enabled reversible drum type mixer/concrete batch mix plant(pan mixer) as per drawings and Technical specifications etc. complete with fine agreegates of required specifications(VSI sand finely washed etc) (Item No. 14.58)

Providing and laying in situ/ready mix M-25 plain cement concrete of trap/granite/quartzite/gneiss metal for cast in citu piers, abutment, returns, wings etc. including provision of "V" shaped false joints to form suitable panels on the faces to approve design with compacting by vibrating and curing complete, including plywood/steel form work centering(excluding dewatering by means of pump) and including bailling out water and curing finishing inCM 1:3 etc. complete. as directed by engineer in charge basic rate shall be increased for height above 5.00m in followinh manners(a) Height upto 5 M.(With Concrete Mixer)With fine agreegates of required specifications(VSI sand finely washed etc) i) Height up to 5 m, normal rate. ii) Height 5 to 7.50 m, add 5 percent extra over basic rate. iii) Height 7.50 to 10 m, 7.50 percent extra. iv) Over 10m Height, add 10 percent extra for every 2.50m rise. (Item No. 17.40)

Providing subsurface drainage pipes (horizontal / inclined) in the slope/wheep holes with perforated PVC pipe (lined with Non -woven Geotextile) of 160 mm internal diameter by drilling and inserting the perforated PVC pipe as per the drawings etc. complete and as directed by Engineer -In -Charge.

Supplying & laying of polyester needle punched non woven geotextile as filter media behind Gabions, as per MoRTH 700 Type-III geotextile. The width of geotextile roll shall not be less than 4.5 m including design, analysis, Testing, drawings and data requirements like topographical survey geotechnical/geological test requirments, menpower, personal, proot checking from third party like IT/NIT and any other data required for successful completion of the assignment in all respect as directed by Engineer-in-charge in all leads and lifts.

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