Construction on Platte-Winner Bridge project could begin this fall

These two pictures show how the proposed new bridge and highway align with the existing structures.

This graphic shows the next steps in the process of constructing the new bridge.

At 5,655.5 feet—more than a mile—the Platte-Winner Bridge is the longest bridge ever constructed in South Dakota. Completed in 1966, it crosses the Missouri River between the cities of Platte and Winner, connecting the traditionally divided east and west areas of the state.

This cross section of the bridge shows that each pier will have four girders instead of two like the current bridge has. This redundancy increases the integrity of each pier in the event that a girder is damaged.