(KNZA)--A portion of southbound U.S. 75 in Brown County will close as part of an  ongoing passing lanes project.

Beginning Tuesday,  March 15, the Kansas Department of Transportation says temporary traffic signals will be placed near 140th Road and 150th Road to direct both directions of traffic through the reduced area.

There will be a reduced speed limit and 12-foot lane restriction.

KDOT says drivers should be prepared for slow-moving traffic and add extra time to their travel schedules.

The closure is expected to last through late May, weather permitting.

Hamm Inc., of Perry, is the contractor on the $8 million project.

KDOT urges all motorists to be alert and obey the warning signs when approaching and driving through a highway work zone.  To stay aware of all road construction projects across Kansas, go to www.kandrive.org or call 5-1-1.