Districts Impacted
A project to update sidewalks and signals on Route 21 in St. Louis County and update various bridges in Jefferson County.
Project Milestones
MoDOT creates initial plans for the project.
MoDOT held a public meeting on June 14, 2022, to discuss the conceptual plans with the public and determine if there were necessary adjustments or additional updates.
The team starts work to determine and obtain the necessary easements or right of way to complete the process.
NB West is the prime contractor for the Route 21 project and Concrete Strategies is the subcontractor performing the bridge work.
Pavement resurfacing and guardrail upgrades began Summer 2023.
Press Releases
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MoDOT to close Route KK between Route 185 and Route C starting Wednesday, April 30
FRANKLIN COUNTY—The Missouri Department of Transportation will begin culvert pipe replacement work on Route KK in Franklin County between Route 185 and Route C on Wednesday, April 30, at 8 a.m.
Crews will work on up to 10 culvert pipes throughout...
What is the current situation?
The Missouri Department of Transportation is rehabilitating or repaving the decks on 17 bridges on Route 21 in Jefferson County between Schenk Road near Otto and the Meramec River northwest of Arnold.
Which bridges in Jefferson County will be worked on?
This work includes rehabilitating or redecking 17 bridges along Route 21 in Jefferson County between the Meramec River northwest of Arnold and Schenk Road near Otto. Bridges include two areas where northbound and southbound Route 21 cross Old Route 21, the northbound and southbound Route 21 bridges over Heads Creek Road, Rock Creek, Lonedell Road and relocated Route M, a bridge over a ramp to Route 21, as well as the bridges over the route at Four Ridge Road, Old Route 21 in two locations and Rock Creek Road. Work also includes guardrail updates on and near the bridges. Additional specifics on the work on those bridges are still being determined at this time, although current expectations are that one half of each bridge will be closed at a time. That will require one lane to be closed in each direction and traffic to be shifted into the remaining lanes.
Project displays
These 17 bridges will be rehabilitated as part of the project along Route 21 between 2023 and 2025. When the work on the bridges is complete, the roadway will be resurfaced. For a larger, pdf version of the file, please click here.
Contact MoDOT
Christine Redhage
Title
Resident Engineer, Jefferson and Franklin Counties
Department
St. Louis District
Contact Info
Phone: (314) 435-5018
Email: Christine.Redhage@modot.mo.gov
Phone: (314) 435-5018
Email: Christine.Redhage@modot.mo.gov