Project on Chota Motala 50% done

2011-05-30 00:00

MOTORISTS putting up with inconvenience on the N3 and the Chota Motala bridge as work proceeds on the interchange will be pleased to hear that the project is 50% complete.

The project, funded jointly by the South African National Road Agency Limited (Sanral) and the Msunduzi Municipality, will yield a triple-decker interchange with multi-level access roads to get traffic on and off the N3 and out of the northern suburbs more smoothly.

Malcolm Barron, the resident engineer for the project, and site manager Bradley Naidoo told The Witness that about half the work is already done.

“Group Five has completed approximately 50% of the work. The project is progressing well,” said Barron.

Barron and Naidoo said they have been able to complete 70% of the widening of the N3 so far.

On completion, both the north- and southbound carriageways will have four lanes each and a 2,5 metre emergency lane.

In addition, the N3’s old concrete pavement has been repaired and will be completed with a continuously reinforced concrete pavement, 180 millimetres thick, laid on top. This is expected to extend the lifespan of the road by 30 years.

Meanwhile, the Chota Motala Bridge is about 45% complete.

This bridge will be about 70 metres long and 30,8 metres wide. What remains of the bridge will be demolished sometime in July and the N3 will be closed for a day.

Once complete, the Chota Motala Bridge will have three lanes in each direction as well as an additional turning lane.

The men said their main focus now is the incremental launch bridge. The first segment is currently being cast and segments will be joined together and jacked across the N3 using hydraulic jacks.

Naidoo said this allows construction to continue with minimal disruption to traffic.

The incremental launch bridge, which will be 220 metres long and 11,4 metres wide, will stand about six metres above Chota Motala Road.

Traffic exiting Northdale will access the N3 northbound without having to stop at any traffic signals.

Motorists will exit Chota Motala just beyond Willowton Road on a flyover bridge, on to the Du Toit Viljoen Bridge, then on to the new bridge, passing over the N3 and Chota Motala Road before entering the N3 northbound.

“We are focusing on casting the first segment by the end of July and to start the launch sequence.

“The Chota Motala Bridge will need to be completed and surfaced in order for us to deviate the current traffic to the new bridge and then demolish the existing bridge and reconstruct it,” said Barron.

Also half-completed is the new Dorpspruit Bridge.

Once the road widening is completed, traffic will be deviated across the first half of the new bridge and the existing bridge will be demolished and replaced.

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