Crews say a single spot of concrete damage caused an abrupt emergency shutdown of lanes on Interstate 35E at the Lewisville Lake Bridge Wednesday evening into Thursday morning.
CJ Schexnayder, spokesman for the 35Express project, said the bridge deck on the northbound side of the roadway was damaged at a seam in the concrete, causing a hazard in the left lanes during the freeway's busiest hours of the day.
"The damage was sufficient enough that we were concerned about the safety to the traveling public," said Schexnayder. "Because the damage developed so rapidly, we're thinking that it was probably caused by a passing vehicle."
Schexnayder said the actual structure of the bridge was not damaged and the rest of the concrete deck does not appear to have been affected.
For now crews will monitor the bridge more frequently while an investigation into the incident is conducted.
Schexnayder said the construction team is confident though that the bridge, which is less than one year old, is safe and ready for any weather elements that could hit in the coming days.
The emergency repairs began during Wednesday's rush hour and lasted into the next morning.
The 35Express team is currently expanding about 30 miles of the busy freeway from Interstate 635 in Dallas to U.S. Highway 380 in Denton, and the Lewisville bridge was built new for the project; just opening to traffic last summer.