St. Louis

MoDOT Announces Nightly I-55 Exit Closure to Route A with Detours in Place for Construction

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Published on June 15, 2025
MoDOT Announces Nightly I-55 Exit Closure to Route A with Detours in Place for ConstructionSource: Unsplash/ Jamie Street

MoDOT has announced that starting tomorrow, the exit from southbound Interstate 55 to Route A will be closed nightly for construction. The closures will take place from 9:00 p.m. to 5:00 a.m. through July 11, weather permitting. There will be a break in the construction schedule over the Independence Day holiday, from July 3 to July 6, allowing travelers to plan without this particular disruption.

These closures, they are part of an ongoing project to improve the driving experience by erecting new noise walls along southbound I-55. While the work is necessary, it will undoubtedly pose an inconvenience to those accustomed to driving this route nightly. According to details provided by MoDOT's announcement, the endeavors to curb the ever-present hum of highway traffic will soon result in quieter neighborhoods adjacent to these bustling roads. For the late-night crowd and the graveyard shift workers, the temporary detour may add a few more minutes to their commute.

The detour will reroute drivers using southbound Interstate 55 to the I-55/McNutt interchange or the I-55/US 67 interchange. From there, drivers will be able to access Route A via US 61/67. Signage will be in place to guide travelers along this alternate path. 

For those looking for more information or further clarification on the scheduled work and detours, MoDOT has made available details on their website. Ensuring that the public remains informed, MoDOT has taken steps to keep disruptions to a minimum whilst improving the infrastructure. Motorists are encouraged to check the MoDOT website for updates and to plan their nighttime travel accordingly around these closures.