With the last big weekend of summer travel coming up, the Minnesota Department of Transportation urges motorists to use extra caution this Labor Day weekend.

Motorists should also be alert for more people walking and bicycling as many children return to school beginning Tuesday.

Motorists may encounter bypasses, lane closures and detours. MnDOT recommends that motorists be prepared for slower moving traffic, think about using alternate routes, and call 5-1-1 or go to www.511mn.org to get information about road construction detours.

Construction in southern Minnesota includes:

•I-90 Freeborn County: Single lane traffic in each direction, reduced speeds, ramp closures and detours

•I-90 Fairmont to Blue Earth: Single lane traffic, reduced speeds and overpass bridge

•Highway 60 St. James: Single lane traffic in each direction

•Hwy 16 Spring Valley to Dexter: Hwy 16 detoured from Hwy 63 to I-90 through Sept. 6

Motorists should always be attentive, drive with caution, slow down in work zones and never enter a road blocked with barriers or cones.