Construction Supervision Consultancy (CSC) Services for Padma Multipurpose Bridge Project of Bangladesh Bridge Authority (BBA), financed by Government of Bangladesh

Project Information

Client: Bangladesh Bridge Authority (BBA).

Sector: Transport

Location: 40 km away from Dhaka City on Dhaka-Khulna highway, Bangladesh.

Funding Agency: GOB

Incorporation: Korea Expressway Corporation (KEC), South Korea Pyunghwa Engineering Consultants Ltd. (PEC), South Korea Korea Engineering Consultants Corp. (KECC), South Korea SUNJIN Engineering & Architecture Co. Ltd. (SUNJIN), South Korea ACE Consultant Ltd. (ACE), Bangladesh

Construction Supervision Consultancy (CSC) Services for Padma Multipurpose Bridge Project (December 2014 – August 2018)

Description of Project:

The main bridge is a two level steel truss superstructure with road traffic on the upper level and rail on the lower level acting compositely with a pre-stressed reinforced concrete deck slab. The main tasks and activities of the Construction Supervision Consultants (CSC), covering the pre-construction, construction and post construction stages of the Main Bridge and River Training Works would include, but not limited to, the following:

Design Review and others Requirements; Preparation of Project Implementation Plan; Project Management; Construction Supervision; and Project Completion/Closure Activities

Specifications: Total Length = Approximately 6.15km (41 Spans of 150 m each), founded on 42 nos. of piers comprising 3m driven steel tubular or cased bored piles (of depth 100m – 115m), The superstructure has two level fabricated steel truss composite with a pre-stressed concrete upper deck slab. 4 lanes are on the upper level and single track rail line on the level below.

The bridge also comprises of a major river training works both North (1.6 km) and South (12 km) bank.

The upper deck steel truss (6.15km) is of Warren Type with a typical panel point spacing of 18.75m longitudinally. It is 13.5m wide and 12.7m deep which, combined with a 22m wide composite deck slab, makes a total depth of 13.6m. The members of the steel truss are typically welded rectangular hollow sections formed by steel plates, with thickness varying from 29mm to 70mm. The warren steel truss is considered to be corrosion resistant and considered as compatible as weathering steel.

The road and rail viaducts at each end of the main bridge are spanned 38m each comprising precast pre-stressed concrete beams composite with cast in situ reinforced concrete piers supported by reinforced concrete bored piles.

The river training works comprise the following:

North Bank

Guiding revetment along the river bank on dredged slope with falling apron at the toe. The total length is around 1.6 km along the river bank and horizontal projection towards the river is around 170m. The revetment is designed on 1V:6H under water slope and 1V:3.5H above water slope protection with geo-textile on top rock under water and CC blocks above water. Falling apron in the form of riprap is around 25m wide at -25m PWD where the water level at the lean period is +2m PWD and highest at the monsoon is around 6m PWD.

South Bank

Guiding revetment along the river bank on dredged slope with falling apron at the toe. The total length is around 12km along the river bank and horizontal projection towards the river is around 180m. The revetment is designed on 1V:6H under water slope and 1V:3.5H above water slope protection with geo-textile on top rock under water and CC blocks above water. Falling apron in the form of riprap is around 25m wide at -25m PWD where the water level at the lean period is +2m PWD and highest at the monsoon is around 6m PWD.

Description of Actual Services :

The services having provided by the staffs deployed under the banner of DevCon are not anything new but include all those are specified in the TOR for the whole Team of Consultants. These include the supervision consultancy (CSC) services for Contract 1- Main Bridge and Contract 2- River Training Works (RTW) and generally comprise the following major scopes:

  • Design Review and others Requirements.
  • Preparation of Project Implementation Plan.
  • Project Management
  • Construction Supervision.
  • Project Completion/Closure Activities

Contact Us

Address: House 69, Road 16, Block A, Banani, Dhaka 1213, Bangladesh.
Tel: +88 02 55035214-6,
Fax: +88 02 55035217
E-mail: devcon@devconbd.com
Web: www.devconbd.com