Mayor Kirk Caldwell on Tuesday announced a plan to repave 113 lane miles of city streets and roads along the Waianae Coast by the end of the summer.

The first phase, which began this week on roads in Waianae Valley, cost $12.6 million. The contract went to Road Builders.

Expected to begin during the summer, the second and third phases would improve roads in Nanakuli and Maili. The contractor for both phases is Grace Pacific LLC. The Nanakuli contract is for $13.9 million while the Maili project is for $14 million.

Repaving work will take place 8:30 a.m. to 3:30 p.m. on weekdays. No weekend work is scheduled.

At Tuesday’s news conference in Waianae Valley, Caldwell; the district’s councilwoman, Kymberly Pine; and neighborhood board leaders said the repaving is long overdue.

“The community has, for many years, been fighting for improvements,” Pine said. “Many of these roads have not been fixed for 30 years and it’s about time that we have our due.”

Future plans call for repaving streets in Makaha as well as additional roads in Waianae Valley, city officials said. For a look at all of the Oahu roads scheduled to be rehabilitated in the coming years, visit bit.ly/1UlEr9M.

Accelerating the repaving of Oahu roads is one of Caldwell’s six top priorities. City officials say 1,010 lane miles have been repaved since he took office in January 2013. His goal is to repave 1,500 miles within five years.

Richard Landford, transportation chairman for the Nanakuli/Maili Neighborhood Board, said at the news conference that traffic congestion causes many Leeward Coast residents to hit the road as early as 4 a.m. and not get home until 9 p.m. “Our traffic congestion is horrible,” he said.

Leeward Coast motorists got welcome news from state transportation officials two weeks ago about Farrington Highway, the coast’s main artery.

Plans call for an afternoon contra-flow lane in the Nanakuli section of Farrington. The extra lane would run about 1 mile from Piliokahi Avenue and Helehua Street, between 3 p.m. and 7 p.m. on weekdays. That plan is expected to take effect this summer, assuming it gets the thumbs up from Nanakuli/Maili and Waianae Coast neighborhood boards in the coming months.

State officials said they are also working on a project to widen Farrington Highway from Nanakuli to Haleakala avenues, allowing for a new left-turn lane beginning in April 2017.

An estimated 50,000 people use Farrington daily.