The Port Authority of Allegheny County (Port Authority) expects repair work on the Saw Mill Run Boulevard Bridge to be completed and the bridge reopened at the end of May.
The bridge, which hosts rail and bus traffic, has been closed since Feb. 4 when engineers noticed an expanded joint on the deck of the bridge. Port Authority said the likely reason for the unexpected shift was water penetration on a portion of the concrete support structure followed by freezing temperatures.
The original cost of the repairs to the bridge was expected to top $2 million and take up to 12 weeks to complete. The repair work called for contractors to lift the 600,000-pound bridge back into position. Port Authority says crews have installed temporary supports and are readying the bridge for new anchor bolts, rail joints and bearings to be installed the week of April 11.