NORWALK — As construction chugs along to replace the 128-year-old Walk Bridge in the heart of South Norwalk, officials say the $1 billion project won’t face any winter delays.

A crew of 85 to 90 workers has been working at the railroad bridge, moving transmission cables under the Norwalk River and installing structural supports, according to Rory McGlasson, public involvement manager at WSP USA, the program management consultant for the project.

Last month, large equipment arrived on site for the construction of the drill shaft's structural supports for the project.

The cables that run over top of the current railroad bridge’s structure need to be relocated under the Norwalk River before the new structure is built to allow trains to run over its tracks, they said.

As winter approaches, though, Bird said that crews have no plans of slowing down construction — except in the case of a major storm that makes conditions unsafe. But a little snow won’t stop construction, he said.