Missouri Route 185 now open at Swan Branch Bridge in Washington County

JEFFERSON CITY, Mo. – Missouri Route 185, northwest of Potosi, is now open. Construction crews working with the Missouri Department of Transportation (MoDOT) completed the replacement of the bridge deck (driving surface) over Swan Branch and were able to reopen the road to all traffic today, Sept. 3, ahead of schedule. The bridge had been closed since July 22. 

At its April 2026 meeting, the Missouri Highways and Transportation Commission awarded a $4,050,487.98 contract to Louis-Company, LLC to complete the bridge deck replacement project on Route 185. The contract also includes bridge deck replacements on the Ashley Branch Bridge on Washington County Route W (completed) and three bridge deck replacements on Route 8 over Allen Creek, Mid Fork Fourche a Renault and North Fork Fourche a Renault. The schedule for the Route 8 projects is yet to be determined. 

MoDOT asks all motorists to work with us by buckling up, putting your phone down, obeying all traffic signs, and slowing down and moving over in work zones. Motorists are advised to use extra caution through work zones, obey all traffic signs, and avoid any distractions.   

MoDOT asks all motorists to work with us by buckling up, putting your phone down, obeying all traffic signs, and slowing down and moving over in work zones.   

For more information about MoDOT projects, traffic updates, or other transportation-related matters, please visit our Traveler Information Map at http://traveler.modot.org/ or call our 24-hour Customer Service Center at 1-888-ASK-MoDOT (275-6636). While at modot.org, sign up for work zone updates sent directly to your inbox. Information is also available 24/7 by connecting with us on social media: 

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Take the Challenge! Buckle Up/Phone Down 

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