Counties Impacted
St. Louis
Route Impacted
21
Work Type
Sidewalk/ADA Improvements
Planning Phase

Project Milestones

Complete
Draft conceptual plans

MoDOT creates initial plans for the project.

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Complete
Public Meeting

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. 

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In Progress
Right of Way process

The team starts work to determine and obtain the necessary easements or right of way to complete the process. 

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Not Started
Project awarded

Once the necessary easements have been obtained, the project is put out for bid and awarded, pending commission approval, to the lowest qualified bidder.

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Not Started
Construction begins

Once the project has been awarded and the contract signed, construction starts.  This is anticipated to be sometime in fall 2024

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What is the current situation?

The Missouri Department of Transportation has a project scheduled to resurface Route 21 between Gravois (Route 30) and the Meramec River starting in late 2023. During that project, the department will also make updates to the roadway’s pedestrian facilities. The current raised shoulder originally intended for pedestrian use will be removed and replaced with proper sidewalks, making them compliant with Americans with Disabilities Act requirements.

In addition, the department is looking at adding new crosswalks, removing another and constructing several updated pedestrian signals. The work includes maintenance to two bridges in St. Louis County, one over Gravois Creek and one over Grant’s Trail.

Where is the department updating pedestrian crossings?

The department is working with Metro to make sure that appropriate pedestrian crossings are in place for bus stops along the corridor.

What other signal improvements will be made?

The signals at Baptist Church Road, East Concord Road, Schuessler Road, Tesson Rise Drive/Cedar Plaza and Walden Ridge Drive will be upgraded to meet Americans with Disabilities requirements. Signals at Lutheran High School South, Reavis Road, Musick Avenue/Green Park Road, Concord School Road, Mattis Road, Kennerly Road and the ramps to northbound and southbound Route 141 will be updated. Signals at the ramps at I-270, Bauer Road, Butler Hill Road, Duessel Lane, Susson Hills Drive and Duchesne Parque Drive/Hagemen Road will be updated to include detection.

 

What bike facilities will be included in this project?

Since traffic volumes along Route 21 are fairly high, Route 21 will remain signed to remind drivers to share the road with cyclists.

What are the impacts?

Crews will start work by updating sidewalks and signals. That will take most of the time during the project.

During that work, there should be minimal impacts to drivers – they can expect one lane closed in either direction during non-peak traffic hours as crews work on sidewalks and driveways. Business owners with multiple driveways will always have at least one access point into their business through construction. Crews will work on half of the access point at a time when there is only one entrance/exit from a business. Residential driveways are too small to complete one at a time – driveways will need to be closed for several days at a time. We anticipate that the contractor will be able to share a general timeframe of when they anticipate being in the area probably about a week or two in advance.

As crews work on the bridge over Grant’s Trail, the trail will need to be closed under the bridge for safety for short periods when work is underway overhead. 

Residents who currently use the raised shoulder along the roadway as additional parking will not be able to do so when the project is finished. Since that is considered a walking path, drivers should not be parking on it and forcing pedestrians to walk in the roadway.

When all the sidewalk and bridge work is completed, crews will resurface the roadway. That will probably take place in 2025 and may include multiple lane closures during the night to avoid major impacts to the traveling public.