The Tamil Nadu Highways Department plans to build a new and wider bridge across the Cooum near Ampa Skywalk on Poonamallee high road at a cost of 8 crore. The new bridge will be broader than the road and make traffic flow smoother. The Highways Department has floated tenders for the construction of what will be the third 'high level bridge' over the river. The bridge, at road level, will be at a height of 9.5 m from the riverbed and will be 47 m long.
The Tamil Nadu Highways Department is presently widening a small but crucial portion of Poonamallee High Road near Aminjikarai. The 300-metre stretch is a major bottleneck as the road, which is broad in most places, suddenly narrows down in this part to a single-lane facility. Residents and shopkeepers in the locality said traffic was sluggish on this stretch during rush hour.