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Route 30 (Gravois) and Route 21 (Tesson Ferry) Improvement Project    

Completed as Promised Logo

Intersection of Route 30 and Route 21

Construction Update: August 6, 2010

The contractor has completed this project. All lanes are open at the intersection of Route 30 (Gravois Road) and Route 21 (Tesson Ferry Road).


MoDOT added a dual westbound left turn lane on Gravois Road (Route 30) to southbound Tesson Ferry Road (Route 21), a dual northbound left turn lane on Tesson Ferry (Route 21) to westbound Gravois Road (Route 30) and add a right turn lane from eastbound Gravois Road (Route 30) to southbound Tesson Ferry Road (Route 21). These improvements will reduce the delays at the intersection.


How much will construction cost?

The estimated cost to improve this intersection is approximately $2.2 million dollars.

Current project timeline                            

April 2008 Public hearing to inform the public about the project and gather input on the proposed improvements
Fall 2008 Proceed with right of way acquistion
September 2009 Open for construction bids
Winter 2009 Construction scheduled to begin
Winter 2010 Construction expected to be completed

Additional Information

Aerial map of current intersection (13.8 MB)

Aerial map of proposed intersection  (13.8 MB)


Route 30 and Route 21 Public Hearing


The Missouri Department of Transportation held a public hearing on proposed intersection improvements at Gravois Road (Route 30) and Tesson Ferry Road (Route 21) in south St. Louis County. The hearing was held Tuesday April 8, 2008 at Seven Holy Founders Church on 6820 Aliceton. At this public hearing, residents learned about the project and discussed the proposed intersection improvements. Maps and other detailed project information will be available at the public hearing.


The hearing was an open-house style hearing, which meant no formal presentations were made.  Attendees may offer comments at any time during the hearing, and had the opportunity to document their comments.  Written statements will be made a part of the hearing if received within 10 days after the date of the public hearing.






To Contact Us:


Project Manager: Shirley Norris

Phone: (314) 453– 5032

email: shirley.norris@modot.mo.gov


Area Engineer: Kristy Yates

Phone: (314) 565– 5281

email: kristy.yates@modot.mo.gov


Community Relations: Jack Wang

Phone: (314) 453-1809

email: jack.wang@modot.mo.gov








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