The state Department of Transportation is advising motorists to plan for extra travel time and drive with caution near the following road work areas:

H-1 FREEWAY

Kapolei to Kunia

Single lane closures on the H-1 Freeway in the eastbound direction between the Makakilo and Kunia Interchanges continue through today from 8:30 a.m. to 3 p.m. for lane striping.

Waikele to Waipahu (Night Work)

Two rightmost lanes in the westbound direction will be closed from the H-1/H-2 separation to the Paiwa Street on-ramp tonight through tomorrow morning from 10:00 p.m. to 4:30 a.m.

During these hours, the Waikele/Waipahu off-ramp (Exit 7) at Paiwa Street will also be closed. Westbound motorists are advised to use the earlier Waipahu off-ramp (Exit 8B) and surface streets such as Kamehameha Highway, Farrington Highway or Waipahu Street as alternate routes.

FARRINGTON HIGHWAY

Waialua, Nanakuli to Makaha

Single lane closures on Farrington Highway in both directions today from 8:30 a.m. to 3:00 p.m. at the following locations:

• From Nanakuli to Makaha between Haleakala Avenue and Lawaia Street for various contractor permit projects including electrical pole replacements and installations of watermains, communications lines and manholes.

• In Waialua, from Kaena Point to Kaukonahua Road, for lane striping and marker installations.

KALANIANAOLE HIGHWAY

Near Castle Junction

Right-lane closure on Kalanianaole Highway in the Kailua-bound direction between Castle Junction and Kapaa Quarry Road today from 6 a.m. to 2:30 p.m. for erosion control work.

Work and lane closures are scheduled at this site on weekdays through May 2008. Project contractor Prometheus Construction will be anchoring mesh safety netting to the adjacent hillside to stabilize the slope.

Near Kalani High School

Right lane closure in the eastbound direction from Waieli Street to Analii Street today from 8:30 a.m. to 2:30 p.m. for roadside tree-trimming work.

KAMEHAMEHA HIGHWAY

Near Pearl Harbor

Single lane closures on Kamehameha Highway in both directions from McGrew Loop to Center Drive today from 8:30 a.m. to 2:30 p.m. for lane striping, marker installations and guardrail repairs.

Mililani to Wheeler AAF

Southbound traffic on Kamehameha Highway will be contraflowed using the northbound lanes between Lehua Road and Waikalani Drive today from 8:30 a.m. through 3 p.m.

Twenty-four-hour lane closures will also be in effect, seven-days-a-week at the following locations:

• Right lane closure in the northbound direction between Lehua Road and Kahelu Avenue.

• Left and right lane closures in the southbound direction between Santos Dumont Avenue and Waihau Street.

Portable concrete barriers will be closing these lane segments for shoulder widening and curb construction.

LIKELIKE HIGHWAY

Upper Kalihi Area

Right lane closure on Likelike Highway in the Honolulu-bound direction between the Wilson Tunnel and Valley View Drive today from 8:30 a.m. to 2:30 p.m. for roadside tree-trimming.

FORT WEAVER ROAD

Near Aawa Drive

Single lane closures on Fort Weaver Road in both directions between Aawa Drive and Laulaunui Street today at the following locations and times:

• Intermittent single lane closures in the southbound direction between Laulaunui Street and the Honouliuli Stream Bridge from 8 a.m. to 2 p.m. for traffic signal conduit and irrigation line installations.

• Intermittent right lane closure in the northbound direction from Aawa Drive to the Honouliuli Stream Bridge from 9 a.m. to 1:30 p.m. for drainage system construction.

PUULOA ROAD

Mapunapuna Area

Various lane closures on Puuloa Road between Kamehameha Highway and Salt Lake Boulevard today from 8:30 a.m. to 3 p.m., daily, at the following locations:

• Shoulder lanes in both directions closed. Roadside parking will not be permitted.

• Modified traffic pattern is in effect on Mokumoa Street between Puuloa Road and Mapunapuna Street for drainage work. No large vehicles are allowed through this area. One lane of travel in each direction is available for cars.

AOLELE STREET

Near Honolulu International Airport

Various single lane closures at the intersection of Aolele Street and Paiea Street near the Honolulu International Airport early this morning from 12:30 a.m. to 6:30 a.m., for lane striping.