Drivers going in and out of the Aiea area were stuck in a maze of detours and delays Thursday night. Crews were working all night on repairs to a pedestrian overpass that fell down last month.

The 20-to-30-foot section collapsed onto the Moanalua freeway when it was hit by a piece of construction equipment, being towed by a tractor trailer.

Crews made repairs to the overpass until 4 a.m. The Department of Transportation started issuing warnings early.

DOT spokesperson Caroline Sluyter said, "We really want to get the word out so people can avoid the area if possible. If they don't have to drive in the area we would recommend it because it is a major closure."

Aiea bound motorists on the H-1 Freeway heading eastbound used the Pearlridge/Waimalu off ramp and Moanalua Road.  Motorists heading westbound used the Arizona Memorial/Stadium off ramp and Kamehameha Highway.

Aiea bound motorists on the Moanalua Freeway heading westbound should used Halawa/Stadium off-ramp to Ulune Street and Kaimakani Street. Others trying to get to Moanalua Freeway heading eastbound used the Moanalua Road to Kaimakani Street and Ulune street to the next available eastbound on ramp at Kahuapaani Street.

"The structural engineers were able to take a look at it determine that it was structurally sound. There were some repairs that they made to it," said Sluyter.

A crane was used to help hoist the 5-ton concrete bridge section back into place. The DOT said the trucking company that caused the crash is responsible for the $300,000 repair job.

The DOT said there will be some other repairs to the steel railings on the overpass Friday and Saturday that will cause some minor lane closures. The overpass is expected to reopen next Tuesday.