This is one of the most congested segments of the Lakefront Trail.
The pedestrian path is cantilevered off the east side of the Lake Shore Drive bridge over the Chicago River and DuSable Harbor. It "broke" in September 2009 and a detour was made onto a travel lane.
The city installed metal plates over the open grates of the bridge deck, as well as a guardrail and reflective signs.
Read about my proposal alternative to the Navy Pier Flyover, a $45 million bypass structure, on Grid Chicago.