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Project > Roads, Tunnels, & Bridges > Shumaisani Interchange

Shumaisani Interchange

Employer

: Greater Amman Municipality

Consultant

: Arabtech Jardaneh

Project Value

: 20,739,683 JD

Completion Time

: Early 2012

 

Project Description

 

The project site is in Al-Shumaisani Area at the heart of Amman, the capital of Jordan. The contract is to construct and finish a main interchange to facilitate the traffic in this node in Amman. The contract includes:

 

Construction of Queen Noor overpass

The Queen Noor overpass (QN) consists of a dual carriageway each carried by a separate bridge structure with a 9.04m width each. From the left carriageway bifurcates a 100m long ramp that will connect to the Rapid Exit Flyover (RE). From the right carriageway bifurcates one span that connects to Ramp1.

    • The deck is of the post-tensioned single cell box girder type. The deck depth is 1.20m for QN.
    • Each deck is constructed in a number of stages.
    • Construction joints are set near inflexion points. Pretesting cables are made continuous with the use of special couplers.
    • The abutments are of the solid wall type. They have a double function: support the deck at bridge ends and retain the road embankment of the approaches to the bridge structure. The abutments are equipped with approach slabs to ensure a good transition between the road flexible pavement and the bridge rigid structure.

 

Construction of Shumaisani- Naboulsi overpasses:

The Shumaisani- Naboulsi overpass consists of a dual carriageway each carried by a separate bridge structure with a 7.84m width.

    • The deck is of the post-tensioned single cell box girder type. The deck depth is 1.20m in the first three spans and varies linearly in the fourth span to 1.85m.
    • Each deck is constructed in three stages. Construction joints are set near inflexion points. Prestressing cables are made continuous with the use of special couplers.
    • Construction of overpass ramps to serve the traffic from Al Abdali area.
    • Construction of roundabout at the main interchange.
    • Demolish and reconstruct part of the existing tunnel with a widening towards the Abdali area.
    • Earth works: which includes the general site clearance, unclassified excavation, structural excavation, backfill and embankment works.
    • Construction of sub base and base course layers.
    • Construction of asphalt layers including the binder and wearing layers.
    • Construction of the surface and storm water drainage system.
    • Construction of shoulders and sidewalks.
    • Construction of retaining walls.
    • Installing traffic signs, guardrails, and road painting.
    • Other works like cable ducts, offices, etc.