Here is an aerial view of the current construction taking place on the Grand Avenue Bridge in Des Moines, IA. Originally constructed in 1918 and renovated in 1968, the old bridge has experienced an increase in deterioration over the years. Some components were severely deteriorated, resulting in significant concrete spalling, cracking, and delamination. As a result, the old bridge was removed entirely and a new structure will take its place.
The new bridge will be a 446 ft., four-span, concrete beam bridge with concrete stem piers and integral abutments, all with driven or drilled steel piling into bedrock. The project, which is scheduled to be completed in September 2018, will cost over $9,000,000 to complete but will improve the flow of traffic in the area. The new bridge will support three lanes of traffic (instead of just two), a bicycle lane, curb parking, and widened sidewalks for pedestrian use.
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