Transportation Sales Tax and TIP Info

The County's ½-cent transportation sales tax was first enacted by the voters in 1985 and has been reauthorized three times. Funds from this tax are used for road improvements that enhance the mobility and safety of our local roads. These improvements are included in the three-year Transportation Improvement Plan (TIP).

The sales tax generates approximately $20 million a year for road improvement projects. 

Off-Cycle Applications

The County may receive applications not included within the 2022-2024 TIP. This application will be presented at the Aug. 25, 2021 Road Board meeting. The meeting will begin at 4 p.m. in the St. Charles County Administration Building, 201 N. Second St., Room 542, St. Charles, MO.

Due to the COVID-19 pandemic, St. Charles County is taking numerous precautions to best protect employees and the community. We are asking for only Road Board members to attend the meeting in person. Comments may be submitted by email or you may participate via Microsoft Teams for the public comments section of the meeting.

2022-2024 TIP

St. Charles County Road Board meetings for April 21 and May 19 will be held in the Council Chambers on the third floor of the St. Charles County Executive Building at 100 N. Third Street, St. Charles, MO 63301. These meetings are open to the public and also will be available to watch live online on the County's YouTube channel. If you would like to provide public comments at these Road Board meetings, please contact the Roads & Traffic office at 636-949-3074.

All meeting attendees: Due to the COVID-19 pandemic, St. Charles County is taking numerous precautions to best protect the employees and the community. Social distancing measures will be enforced. Wearing a face covering is strongly encouraged.

Meeting Date Project Name Sponsor
April 21 Dardenne Prairie Fiber Interconnect to Traffic Signals Dardenne Prairie
April 21 Highway P Improvements Phase 1 Flint Hill
April 21 Lake Saint Louis Boulevard Study Lake Saint Louis
April 21 Lake Saint Louis Flashing Yellow Arrow Conversion and Signal Plan Lake Saint Louis
April 21 Technology Drive Improvement Lake Saint Louis
April 21 Augusta Bottom Road Bridge County Highway
April 21 Femme Osage Creek Road Bridge County Highway
April 21 Hepperman Road Phase 2 County Highway
April 21 Josephville Road County Highway
April 21 West Meyer Road County Highway
May 19 Crestview Drive Extension O'Fallon
May 19 Highway K/Highway N Intersection Improvements O'Fallon
May 19 Sommers Road Widening and Improvements O'Fallon
May 19 Sonderen Road Extension O'Fallon
May 19 Weldon Spring Road Phase 1 O'Fallon
May 19 Duchesne Drive Reconstruction St. Charles
May 19 Muegge Road Pavement Rehabilitation St. Charles
May 19 Plaza Way Extension St. Charles
May 19 Regency Parkway Reconstruction St. Charles
May 19 Mid Rivers Mall Drive - St. Peters Howell Road Lane Improvements St. Peters
May 19 MO-370 Interchange Ramps at Salt River Road (Phase 2, Northbound-Westbound Ramp) St. Peters
May 19 Mexico Road Improvements Wentzville
May 19 Route Z Widening and Signalization Wentzville

2021-2023 TIP

The 2021–2023 TIP includes funding for 24 projects within unincorporated St. Charles County and 71 projects within the municipalities of Cottleville, Dardenne Prairie, Lake Saint Louis, O'Fallon, St. Charles, St. Peters, Weldon Spring and Wentzville. There are also 12 ongoing miscellaneous transportation projects.

The 2021–2023 TIP focuses on new arterial roads and improvements to existing arterials, congestion mitigation/safety on non-arterial roads, and economic development enhancement projects.

2020–2022 TIP

The 2020–2022 TIP includes funding for 21 projects within unincorporated St. Charles County and 48 projects within the municipalities of Cottleville, Dardenne Prairie, Lake Saint Louis, O'Fallon, St. Charles, St. Peters, and Wentzville. 

The 2020-2022 TIP focuses on capacity improvements needed to reduce congestion and improve traffic flow, and safety improvements needed to reduce the number of crashes and the severity rating at improved intersections and along improved roadways.

2019–2021 TIP

The County Council approved the 2019–2021 Transportation Improvement Plan (TIP) on November 29, 2018 (Ord. No. 18-110).

The 2019–2021 TIP includes funding for 26 projects within unincorporated St. Charles County and 65 projects within the municipalities of Dardenne Prairie, Lake Saint Louis, O’Fallon, St. Charles, St. Paul, St. Peters, Weldon Spring and Wentzville.

The projects included in the 2019–2021 TIP focus on capacity improvements needed to reduce congestion and improve traffic flow, and safety improvements needed to reduce the number crashes on local roads with an emphasis on improvements that will reduce severe and fatal accidents.

2018–2020 TIP

The County Council approved the 2018–2020 Transportation Improvement Plan (TIP) on Dec. 27, 2017 (Ord. No. 17-114).

The 2018–2020 TIP includes funding for 18 projects within unincorporated St. Charles County and 44 projects within the municipalities of Dardenne Prairie, Lake St. Louis, O'Fallon, St. Charles, St. Peters, Weldon Spring and Wentzville.

The projects included in the 2018–2020 TIP focus on capacity improvements needed to reduce congestion and improve traffic flow, as well as safety improvements needed to reduce the number of crashes on local roads with an emphasis on improvements that will reduce severe and fatal accidents.

2017–2019 TIP

The County Council approved the 2017–2019 Transportation Improvement Plan (TIP) on Nov. 28, 2016 (Ord. No. 16-096).

The 2017–2019 TIP includes funding for 20 projects within unincorporated St. Charles County and 39 projects within the municipalities of Dardenne Prairie, Lake St. Louis, O'Fallon, St. Charles, St. Peters, Weldon Spring and Wentzville.

The projects included in the 2017–2019 TIP focus on capacity improvements needed to reduce congestion and improve traffic flow, as well as safety improvements needed to reduce the number of crashes on local roads with an emphasis on improvements that will reduce severe and fatal accidents.

2016–2018 TIP

The County Council approved the 2016–2018 Transportation Improvement Plan (TIP) on Sept. 15, 2015 (Ord. No. 15-085).

The 2016–2018 TIP includes funding for 23 projects within unincorporated St. Charles County and 33 projects within the municipalities of Lake St. Louis, O’Fallon, St. Charles, St. Peters, Weldon Spring, and Wentzville.

The projects included in the 2016–2018 TIP focus on capacity improvements need to reduce congestion and improve traffic flow and safety improvements needed to reduce the number crashes on local roads within an emphasis on improvements that will reduce severe and fatal accidents.