The City of Byrnes Mill Public Works department maintains two (2) dozen roads located within city limits with the exception of Missouri State Highway 30 and Missouri State Highway W which are both maintained by the Missouri Department of Transportation (MoDOT).
The following roads are maintained by Byrnes Mill (all unlisted roads are maintained privately):
Old Highway 30 (Gravois Road)
High Ridge Boulevard
Lower Byrnes Mill Road
North Lakeshore Drive
Osage Executive Circle
Osage Executive Drive
South Lakeshore Drive
Upper Byrnes Mill Road
In addition to regular maintenance, scheduled roadwork, and snowplowing, City crews pick up discarded trash along the City's maintained roadways twice each month. Drivers are encouraged to use caution and drive slow when workers are present.
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