(KLZA)-- Holt County U.S. Route 59 at the bridge over Interstate 29, north of Craig, is narrowed to one lane for pavement repairs due to a pavement blow-up.

Crews with the Missouri Department of Transportation began repairs Thursday. Work may extend into tomorrow, Friday, June 24.

Motorists will be guided through the work zones by flaggers. The speed limit through the work zone is reduced to 35 mph around-the-clock until the work is completed

A pavement blow-up occurs when the roadway surface expands at a crack or joint where moisture has seeped in. The crack weakens the pavement, and the heat causes the pavement to buckle and warp.