Districts Impacted
Project Summary
As part of the Statewide Transportation Improvement Program (STIP), MoDOT budgeted an estimated $78.1 million for the construction of the safety and congestion improvements along the Route 47 corridor in Washington, Union, and St. Clair. This corridor is over 70 years old, as Route 47 from Union to St. Clair was built in 1948, and the portion between Washington and Union was built in 1962.
Congestion is a major concern along the corridor. MoDOT conducted a study to identify issues and potential improvements related to Safety and Mobility, Intersections and Access Management, and Condition of Existing Infrastructure.
Goals for the project include:
Increase Safety
Reduce Congestion
Balance needs for local access, mobility, and economic growth
Increase the reliability of north-south regional traffic
Project Timeline
The project is currently concluding the Conceptual Study and transitioning into the Preliminary Design Phase. MoDOT is proceeding with a Design-Bid-Build (DBB) delivery method where the design consultant, HNTB and partners, will develop Preliminary, Right-of-way, and Construction Plans that a contractor can submit a bid for. The DBB delivery method will allow MoDOT to continue our public engagement activities throughout the design process.
Ongoing field work along the corridor include utility locates and survey data collection. Property owners may also receive letters from MoDOT in summer 2026 regarding environmental and geotechnical surveys.
Missouri Route 47 Photo Gallery
Frequently Asked Questions
How long will it take to complete the Conceptual Study?
The study will take approximately 12-18 months to complete.
How many miles in the project?
The entire length of the project is approximately 12 miles long.
What is the crash history from 2019-2023?
There were 1,451 total crashes during this 5-year timeframe, including:
Crashes by Type
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7 Fatal crashes (11 Fatalities)
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29 Serious Injury crashes
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276 Minor Injury crashes
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1,139 Property Damage Only crashes
The most frequent crash types were:
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Rear end – 821 crashes (57% of total crashes)
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Left-turn-related – 193 crashes
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Passing – 104 crashes
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Out of control – 86 crashes
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Right-angle (“T”) crashes – 58 crashes
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Head on – 45 crashes
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Deer – 42 crashes
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Right-turn-related – 29 crashes
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Sideswipe – 12 crashes
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U-turn – 8 crashes
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Pedestrian – 5 crashes
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Bicycle – 1 crash
Missouri Route 47 Conceptual Study Contacts
Aaron Groff, P.E.
Title
Transportation Project Manager -- Franklin and Jefferson Counties
Department
St. Louis District
Contact Info
Phone: 314-453-1876
Email: aaron.groff@modot.mo.gov
Phone: 314-453-1876
Email: aaron.groff@modot.mo.gov
Jordan Dalaviras
Title
Area Liaison -- Franklin and Jefferson Counties
Department
St. Louis District
Contact Info
Phone: 314-453-5021
Email: jordan.dalaviras@modot.mo.gov
Phone: 314-453-5021
Email: jordan.dalaviras@modot.mo.gov