Michigan Ave. bridge to close temporarily

September 11, 2008 4:02:47 PM PDT
There's a traffic alert if you're driving through downtown Chicago overnight Thursday.The Michigan Avenue Bridge at Wacker Drive is closing so crews can work on the Wacker Drive riverwalk.

Detours will be posted around the bridge from 11 p.m. Thursday until 6 a.m. Friday. The closures are needed to allow crews to install sheet piling for the new river-level walkway beneath the bridge.

This is the first connection walkway to be built. City officials say eventually, walkways will be installed under all the Chicago riverwalk bridges.