St. Louis

MoDOT Announces Overnight Closure of I-55 Northbound in Jefferson County for Bridge Construction

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Published on May 15, 2025
MoDOT Announces Overnight Closure of I-55 Northbound in Jefferson County for Bridge ConstructionSource: Unsplash/ Pete Alexopoulos

Travelers planning to navigate northbound Interstate 55 in Jefferson County, take note: the Missouri Department of Transportation (MoDOT) announced that all lanes will be closed at Joachim Creek for a stretch starting from McNutt Street to Route Z tonight, as concrete work for a new bridge is underway.

The closure is scheduled to begin at 11:00 p.m. tomorrow and will continue until 4:00 a.m. on Saturday, weather permitting. During this time, MoDOT crews will be pouring concrete as part of their efforts to construct a new span over Joachim Creek—a project that requires a temporary halt in traffic flow.

MoDOT has anticipated the needs of those affected and laid out a detour to guide vehicles during the shutdown; a signed detour will usher drivers off northbound Interstate 55 to exit at the I-55/McNutt interchange after which they will use Route 61/67 to skirt the closed section then, by this bypass motorists can rejoin northbound I-55 at the I-55/Route Z interchange, ensuring a rerouted but continuous journey northward.

For those keeping close tabs on the interstate's status or who might simply stumble upon the disruption without prior notice, it's crucial to stay informed about such closures as this one because they impact travel plans and can lead to delayed arrivals; for real-time updates, MoDOT's traveler information map is an invaluable resource, offering the latest on roadwork, closures, and traffic conditions that could affect your night drive.