Missouri Route 109

Route 109 marker

Route 109
Route information
Length: 13.128 mi[1] (21.127 km)
Major junctions
South end: Route W / Route FF in Jefferson County
North end: Route CC in Chesterfield
Location
Counties: Jefferson, St. Louis County
Highway system
Route 107Route 110

Route 109 is a highway in St. Louis County, Missouri. Its northern terminus is at Wild Horse Creek Road in Chesterfield; its southern terminus is at Routes W and FF in Jefferson County. The road continues north, curves around Spirit of St. Louis Airport and connects with Chesterfield Airport Road, providing a "backway" to the Chesterfield area.

The original alignment of Route 109 was once Route C and the original route was renamed Route BA (the only such designation in the state). At Eureka, Route 109 crosses under Interstate 44 and continues into Jefferson County until it reaches the intersection of Routes W and FF.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
Jefferson0.0000.000 Route W south / Route FF south
St. LouisEureka2.1863.518 I-44 / US 50 St. Louis, Rolla
Wildwood8.37613.480 Route 100 Ellisville, Gray SummitInterchange
9.99816.090 Route BA north Babler State Park
12.39719.951 Route BA south Babler State Park
13.12821.127 Route CC east (Wild Horse Creek Road) / Eatherton Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. 1 2 Missouri Department of Transportation (July 17, 2012). Flex Map Viewer (Map). Missouri Department of Transportation. Retrieved July 17, 2012.


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