Westbound traffic on the H-1 Freeway was backed up Thursday due to debris on the road.
According to police, a vehicle hit the Gulick Avenue overpass, scattering concrete across all four lanes.
The incident occurred at 12:24 p.m.
Several lanes had to be blocked off as crews cleared the area.
Traffic backlog reached the Punahou Street overpass.
All lanes were reopened just before 3 p.m.