Name of the Project
M2 Kaserne and Selby bridges repair and rehabilitation project.

Location
Johannesburg, Gauteng, South Africa.

Project Owner/s
Johannesburg Roads Agency (JRA).

Project Description
The JRA has, after continuous monitoring of parts of the support structure of the Kaserne and Selby bridges on the M2 highway, decided to close the bridge in 2018.

The closure of the motorway was necessitated by the continuous monitoring and the bridge's visual conditions assessment, which had indicated that the structural integrity of the concrete elements had been severely reduced.

As a result, parts of the support structure had moved and the safety of the Selby and Kaserne bridges could not be guaranteed for continuous use, resulting in the closure.

The scope of work at the Selby bridge involved demolishing and rebuilding four failed concrete columns and column heads, the installation of new water-proofed bridge joints and water proofing of the existing bridge deck.

At Kaserne, the scope comprised demolishing and repairing the bridge deck and corbels, and the installation of new water-proofed bridge joints.

Potential Job Creation
Not stated.

Capital Expenditure
R160-million.

Planned Start/End Date
Repairs and rehabilitation of the bridges started in the second week of October in 2018 and took about 12 months to complete.

Latest Developments
The M2 motorway was reopened to traffic on November 4.

There are eight more bridge structures along the M2 that require repair and rehabilitation works, but on a smaller scale than the work required for the Kaserne and Selby bridges  since February. These repairs would not require a full closure of the M2 motorway again.

Key Contracts and Suppliers
Stefanutti Stocks (contractor).

On Budget and on Time?
The project was completed on time and within budget, with an additional R30-million spent on resurfacing the road.

Contact Details for Project Information
JRA, tel +11298 5000 or email hotline@jra.co.za.