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Isa Town Gate Interchange Junction Flyover, Works To Completion

Ministry of Works & Housing

Hyder Consulting

Main Contractor:
Nass Contracting Co. WLL

Isa Town, BAH

Project Value:
BD 29,855,122.836


To carry out the remaining works (RE-TENDER) Upgrading the Isa Town Gate Junction roundabout to a Grade-separated junction with an Overpass / Underpass structure and signalized junction at grade with all utility arrangements. Relocating the existing landmark structure. Works include - underpass structure, access roads, Street Lighting, Drainage System, Major diversion schemes and 66/220kV power transmission.

a) Road Works

Excavation ; Filling with Type A , B; Road Bases ; Infiltration Basin , Ditches
Block Paving. Footpath, Corrugated Crash Barrier ; High Mast Foundation, Civil Works for Electric Works ; Drainage Works - Laying of Pipe Line, MH constructions, Installation of Gullies etc

b) Viaduct 

Concrete works for Pile caps, Columns, Stich Concrete
Balance Casting of Precast Segment 377 Nos out of total 733 Nos
Balance erection of Precast Segment 573 nos out of 733 nos-
Partial Stressing & Grouting of Erected Spans Tendons
Installation of Bridge Furniture (Bearings, Expansion Joints, Bridge Parapets), Waterproofing

c) Underpass

Excavation works ; Concrete works of Pavement Slab, Retaining Walls, In Situ Deck Slab Partial Stressing of Erected I Beam ; Pumping Station for Storm & Sewage water including Design; Installation of Ground Anchors Capacity 600 KN, 720KN & 1200KN
Stressing to Ground Anchors ; Testing of Ground Anchors ; Waterproofing, Finishing Items

D) Isa Town Gate

Power supply to Panel Board including its capital contribution to relevant authorities & ceremonial plaque
E)Other Works
Temp works associated to works like Traffic Diversion, Soil Nailing etc.

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