Trucks Can't Use of One of These Lanes

Graphical exit sign plus truck restriction on Interstate 70 in St. Peters, Mo.
Photo courtesy of Rich Piehl

Two things are notable about this photo. One is the graphic-style exit sign for the Missouri 370 freeway, whose western endpoint is at Interstate 70 in St. Peters. The other dates from late in 2007, when MoDOT began restricting heavy truck traffic on Interstate 70 between Missouri 94 and Missouri 79 in St. Charles County. Trucks over 12 tons are no longer permitted to use the left lane.