Westbound lanes of the H-1 freeway from Halawa to Pearl City are slated for closure starting 9 p.m. Tuesday for overhead sign work, according to state officials.

The state transportation department said three lanes will be closed between the Kaonohi Street overpass and the Pearl City/Waimalu offramp (Exit 10) from 9 p.m. to 4:30 a.m., nightly, from Tuesday to Friday morning. If necessary, a fourth lane will be closed between the hours of 12 a.m. midnight and 4:30 a.m.

In addition, the westbound Ulune Street onramp to the H-1 freeway and a right lane on the H-1 Freeway from the onramp to the Aiea Heights Drive overpass will be closed between the hours of 9 p.m. to 4 a.m., nightly.

Motorists may use Kamehameha Highway as an alternate route or Moanalua Road to access the onramp to the H-1 freeway at the Waiau Interchange.

In addition to the paving work, crews will be working on overhead signs at the Kaahumanu Street overpass.

Electronic message boards have been posted to notify motorists of the closures, and special duty police officers will be on site to assist with safety and traffic procedures.