CHATTANOOGA (WRCB) - All lanes of I-75 Northbound are reopened after a crash involving two tractor-trailers shut down the interstate for about 3 hours Friday. 

The crash had I-75 at a crawl at the Ooltewah exit, Exit 11.  Northbound lanes were completely blocked and southbound lanes were affected.

The Tri-Community Volunteer Fire Department responded to the scene. According to TDOT, the crash happened on the northbound lane, but the trucks hit the concrete barricade, shifting it into the southbound lanes.

The whole mess was cleaned up by noon.