ARB was awarded a contract with Long Beach Energy for the replacement of multiple natural gas mains, which varied in diameter from 2-inch polyethylene to 12-inch steel pipe as well as work on 628 services to be replaced throughout the city. Methods of installation included open trench, horizontal directional drilling, cut and bore as well as multiple bridge crossings, which were completed using a barge in the water below. With two crews, the work lasted approximately 7-months.