Numerous roadways, including Ala Moana Boulevard, Nimitz Highway and portions of the H-1 and H-3 freeways will be closed early Saturday morning for a triathlon, state officials said.

The Hawaii Law Enforcement Memorial Foundation is holding its third annual Race to the Base Triathlon, which will result in lane closures starting at 3:30 a.m., fully in place by 6 a.m. All lanes are expected to be open again by 11 a.m.

The scheduled lane closures are as follows:

>> Ala Moana Boulevard/Nimitz Highway – Two westbound left lanes will be closed from Kamakee Street to Puuhale Road. All lanes on westbound Nimitz Highway between Puuhale Road and Valkenburgh Street will be closed to traffic. Motorists will be detoured at Puuhale Road and Kamehameha Highway to access the onramp to the westbound H-1 Freeway.

>> H-1 Freeway – One westbound right lane will be closed from the Valkenburgh Street onramp to the Kaneohe/Honolulu offramp (Exit 13B).

>> H-3 Freeway – All lanes will be closed in the Kaneohe-bound direction between the Halawa Interchange and the Kaneohe Bay Drive offramp (Exit 15). Kaneohe-bound traffic will be able to access the Marine Corps Base via the Kaneohe Bay Drive onramp to the H-3 Freeway.

Motorists are advised to allow for extra travel time, use alternate routes and drive with caution through race areas. All weekend lane closures are posted on the state Department of Transportation website.