The Court Street overpass repair in Pasco was completed this week, according to the state Department of Transportation.
The bridge across Highway 395 was damaged in January when construction equipment on a semi-truck was too tall and crashed into the bridge's support girders.
One of the girders was replaced, and about six other girders were repaired. The bridge was down to one lane during construction.
The state handled the estimated $650,000 repairs and footed the bill because the accident was on a state highway.