Workmen install reinforcing rods for a new bridge pier on top of an old pier on the 21st Street bridge. The new piers will be poured on top of the old piers, with the old pier serving as the new pier's "footing." To the right of the pier, columns are being poured for piers that will support the future ramp from westbound 21st Street to southbound Riverside Drive. Photograph taken February 10, 1984.
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