Mud, water and debris, including tree trunks, covered part of the H-1 freeway and Dillingham Boulevard near Middle Street, creating a traffic nightmare for morning commuters on Oahu.
State crews were able to reopen a couple of Ewa-bound lanes of H-1 freeway at School Street just after 5:30 a.m. and Koko Head-bound lanes at about 2 a.m., but a couple of Ewa-bound lanes remained flooded and closed and that backed up traffic to Kaimuki during the peak of the commute.
At 9:30 a.m., the right lane of the freeway was still closed, but traffic, while heavy, was mostly moving smoothly.
Traffic remained congested in Kalihi around Dillingham Boulevard as crews continued to clear mud and debris from Dillingham Boulevard.
Water, mud and debris sent over a bridge over Kalihi Stream at about 11 p.m., creating a flooded, muddy mess.
Dillingham Boulevard remained closed in both directions at Middle Street this morning. The Dillingham Boulevard and Middle Street off-ramps are closed at the viaduct and all eastbound traffic will have to take Nimitz Highway or continue on H1 eastbound. they said.
All makai-bound traffic on Middle Street must turn right onto the H1 west or onto Nimitz Highway beneath the viaduct, and all westbound traffic on Dillingham Boulevard and Kamehameha Highway will be forced to U-turn near Marukai.
After passing the islands Sunday evening, Darby dumped heavy rain on Oahu, causing heavy flooding that closed the freeway near School Street in both directions at about 11:30 p.m.