Pick your times and you should be OK. We came thru there in late May on a Saturday morning around 8am and had no problems. Avoid rush hours. According to Google maps traffic data when we went thru, there was more congestion on the bypass loop than on the main road.
al
Fulltiming since Apr 2007 in 2000 Rexhall Aerbus, towing 2012 Honda CRV. 47 of the lower 48 so far.