Missouri Route 141

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Route 141
Maintained by MoDOT
Length:	21 mi (34 km)
North end:	Chesterfield
South end:	Arnold
Major cities:	Chesterfield Town and Country Ballwin Manchester Twin Oaks Valley Park Fenton Arnold
Missouri Highways < Route 139 Route 142 > Supplemental

Highway 141 is a highway located in the western St. Louis metropolitan area. Its northern terminus is at Route 340 in Chesterfield in St. Louis County; its southern terminus is at U.S. Route 61/U.S. Route 67 in Arnold, in Jefferson County. The section of Route 141 between Interstate 64 and the St. Louis County/Jefferson County line was upgraded to six lanes in a project completed in 2003. The section in Jefferson County is four lanes. For the majority of its duration, 141 is a divided highway with six to eight lanes up until US 40, where it converges into a two lane road until Olive where it ends. SPUIs are planned at Ladue Rd and Route 340.^[1]

The northern part of Route 141, from the northern terminus until after Ladue Road, is named Woods Mill Road. Other portions of the highway had been named Meramec Station Road, New Smizer Mill Road, and Vandover Road, but the expansion project caused those to diverge from Route 141.^{[citation needed]}

Major intersections

County	Location	Mile	Roads intersected	Notes
St. Louis	Chesterfield		Missouri Route 340/Olive Blvd	Northern terminus
			Ladue Rd
			Conway Rd
	Town & Country		I-64/US-40
			Clayton Rd
	Manchester		Route 100/Manchester Rd	SPUI interchange
	Twin Oaks		Big Bend	SPUI interchange
	Valley Park		Vance Rd
			I-44/US-50
			Bowles Ave
	Fenton		Route 30	Diamond interchange
Jefferson			Route 21/Tesson Ferry Rd.	Diamond interchange
	Arnold		I-55
			US-61/US-67/Jeffco Blvd	Southern Terminus

References

External Links

Route 141 Improvement Project (Ladue to Olive) - MoDOT project page