The Walnut Street Bridge in Des Moines is set to close on February 19, 2024, as part of a comprehensive replacement project aimed at addressing its structural deficiencies. City Engineer Steve Naber expressed excitement for the project, highlighting that it marks the final major improvement for downtown river bridges in the city. Originally built in 1911, the bridge has been categorized as structurally deficient, with significant deterioration observed in its concrete deck and arches. Following a life-cycle analysis, it was determined that a complete replacement was more cost-effective than rehabilitation. The $19.

1 million project will enhance safety by retaining on-street parking, adding bike lanes, and providing wider sidewalks, all while improving the bridge's aesthetic appeal to match nearby structures. Signage will be posted to inform drivers of the closure, and alternative routes are available online for detour planning. The city appreciates the patience of residents and visitors during this essential infrastructure improvement. For additional information, residents may contact the city’s communications office.