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The original item was published from 4/18/2023 9:35:06 AM to 4/26/2023 12:41:12 PM.

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SCCMO General Press Releases

Posted on: April 18, 2023

[ARCHIVED] St. Charles County Highway Department Projects Underway to Reduce Congestion, Improve Safety

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The St. Charles County Highway Department has road construction projects underway to improve traffic flow, reduce congestion, and improve safety at two high-volume intersections, with more road improvements planned in the near future.

CENTRAL SCHOOL ROAD AND ST. PETERS HOWELL ROAD: Just north of Route 364 in the St. Peters area, improvements to widen the intersection of Central School Road and St. Peters Howell Road in all directions have begun. Central School Road will have an additional turn lane and an additional drive/merge lane on both sides of the intersection. St. Peters Howell Road will have an additional left turn lane to serve drivers accessing the Route 364 corridor.

A $1.6 million contract has been awarded for this construction, and it is expected to be complete by June 2023.

ROUTE Z AND ROUTE N: In the Wentzville area, south of Interstate 70, the intersection of Route Z and Route N is being relocated to the east to improve the alignment of the intersection. Additionally, the new intersection will be expanded in all directions and a traffic light will be installed.

 A $5.8 million contract has been awarded for this construction, and the work is anticipated to be completed by late 2023 or early 2024.

Both road improvement projects are funded by the voter-approved St. Charles County ½-cent Transportation Sales Tax, along with Federal Highway Administration (FHWA) Congestion Mitigation and Air Quality Improvement Program funding.

More information can be found at

 The following road improvements in unincorporated St. Charles County are expected to begin between fall 2023 and summer 2024:

  • West Meyer Road – Repaving and adding shoulders to West Meyer Road, from Route W in Foristell to the McCoy Creek Bridge east of Duenke Road. 
  • Josephville Road – Repaving and widening the shoulders of Josephville Road from Highway P south to Kersting Road.
  • Interstate Drive – Reconstruction of Interstate Drive from Quail Ridge Park east to Prospect Road/Duello Road. This project includes widening the existing roadway, additional infrastructure improvements, installation of a multi-use path for pedestrians and bikes, and construction of a roundabout intersection where Interstate Drive, Prospect Road and Duello Road meet.
  • Duello Road – Road widening, infrastructure improvements, additional turn lanes, and construction of a multi-use path along Duello Road, from Route N to north of Orf Road.

 The St. Charles County Highway Department has asphalt overlays and concrete slab replacements scheduled in 2023 for the following subdivisions and roadways:

Asphalt overlays                                                                                                      

Bunker Hill                                                            Booneslick Gardens
St. Anthony Hill                                                     Whispering Hills
Bluffs                                                                    Lexington Square
Heritage                                                               North Willow Wood Estates
Powell Park and Forest Gardens                         Fairway Estates
Brocknor Estates                                                 Pitman Hill Road
McClay Road                                                       Various rural roads

Concrete slab replacements                                                                       

Stonebridge Manor                                              Crystal Springs Wood
Ivy Meadows                                                        Wood Crest
Manors at Glen Brook                                          Twin Fawn Estates
Dove Meadows                                                    Countryside
Eagles Ridge                                                       Harvest Valley
Merriweather Park                                               Addyston Place
Bluff Meadows                                                     Charles Village
Saddlebrook                                                         Whitehirst Manor

For more information, email or call 636-949-7305. 

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