One lane on the Court Street overpass above Highway 395 will remain closed until the state Department of Transportation can repair damaged girders.
Construction equipment on a semi-truck was too tall for the bridge's clearance and crashed into the bridge's support girders Friday night.
One westbound lane of Court has been closed since the accident. Lanes on Highway 395 under the bridge also were closed for cleanup of fallen concrete and temporary repairs, but reopened over the weekend.
The collision caused extensive damage to one concrete girder, said Meagan McFadden, DOT spokeswoman.
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DOT wasn't able to start looking for a contractor to fix the bridge until today because of holiday closures on Monday, which was Martin Luther King Jr. Day, McFadden said.
The state will handle the repairs because the accident occurred on a state highway, she said.
It's not the first time that a vehicle with an oversize load has damaged the bridge, McFadden said.
After the semi-truck driven by Donald Albert, 73, of Hermiston, hit the bridge Friday, falling concrete debris damaged three other vehicles.
Albert was not injured. He was able to drive his semi-truck from the scene, but the trailer carrying an excavator had to be towed away.
Albert was cited for carrying a load over legal height.
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