The St. Louis Grand Avenue Viaduct over Mill Creek Valley expands 1165 feet. The new bridge is 16 feet wider, has 4 lanes of traffic, dedicated Metro Link lanes, 12-foot wide sidewalks and includes a 9-foot-wide-irrigated median.

Completed in 2012, this $27 Million project certainly met its challenges along the way. These challenges required soil stabilization and innovative design of specialized drilled shaft concrete. Structure concrete totaled around 5000 cu.yds. while the pavement, bridge deck, and sidewalks totaled around 7000 cu. yds.

Bridge deck utilized the new Modified B-2 mix in common use throughout the St. Louis area and well as the newer pavement types and requirements implemented by MoDOT since 2008.

Contractor: Kozeny-Wagner