Two ramps along I-49 on Bentonville's Exit 86 will close Friday night. Two other nearby projects aim to improve traffic flow, but may also cause a few travel headaches along the way. ARDOT says Walton Blvd. and Walnut St. drivers should already be thinking about an alternate route. 4 lanes of traffic - two in each direction - will remain open under and on I-49 during peak driving times. Impact to I-49 drivers will remain minimal. As work continues, lane shifts will move traffic onto finished bridges.