Chicago's Western Avenue Overpass, which crosses busy Belmont and Clybourn avenues on the city's Northwest Side, shares one crucial aspect with 2,238 other bridges in urban, suburban, and rural communities across the state: federal regulators consider it "structurally deficient," meaning at least one key component of the bridge is rated in poor shape or worse. You can see this easily at Western and Belmont. In many places, the overpass' concrete has chipped away, exposing its internal rebar to the elements.
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