Police in Council Bluffs say the Interstate 480 east ramp to I-29 northbound will be closed overnight in Council Bluffs due to an accident involving a semi. 58-year old Dale A. Shambaugh, of Hatton, ND, was driving a tractor trailer eastbound on I‐480 and crossing over I‐480 to I‐29 northbound when the tractor‐trailer began to tip as it traversed the curve.

Authorities say at some point, either the load or trailer struck a guardrail causing chunks of concrete to fall onto I‐480 westbound. The tractor trailer was hauling large rolls of steel that became separated during the incident. Neither Shambaugh nor any other motorists were injured.

I‐480 westbound was restricted to one lane for about an hour while the concrete was cleaned up. The ramp from I‐480 east to I‐29 North was expected toremain shut down at least overnight. Iowa Department of Transportation Motor Vehicle Enforcement is assisting the CBPD Traffic Unit in the investigation of the crash. Any charges are pending the outcome of the IA DOT MVE’s investigation.

Drivers wishing to go northbound from eastbound I‐480 should proceed south on I‐29 to 9th Avenue, pass under I‐29, then turn left onto I‐29 northbound.