Jefferson County Updates

	Map of Jefferson County
	MoDOT Projects in Jefferson County Added to Statewide Transportation Improvement Program
	MoDOT Closes Route H over Big River near DeSoto for Two Months Starting May 28


	Current Construction Projects
	Interstate 55 and Route M Interchange Project - Phase III
	Route 30 Safety Improvement Project
	Routes TT and AA Culvert Replacement Project


	Upcoming Construction Projects
	Route 109 and Route W Resurfacing Project
	Route H over Big River Bridge Rehabilitation Project
	Route 141 Resurfacing Project
	Route FF Safety Improvement Project
	Dulin Creek Road and Route MM/W Intersection Relocation Project


	Planning/Future Projects
	Route 21 Improvement Project - Route B to DeSoto


	Recently Completed Projects
	Interstate 55 Bridges over BNSF Railroad (Safe & Sound)


	Other Transportation Topics
	What is a Roundabout?
	What are Flashing Yellow Left-Turn Arrows?
	Guard Cable - Frequently Asked Questions