Columbia Gas says nearly 35 miles of pipeline replaced in Merrimack Valley

Workers are continuing to replace or service gas lines in Andover, North Andover, and Lawrence.John Tlumacki/Globe Staff/file

Columbia Gas has replaced almost 35 miles of pipeline in the Merrimack Valley, and a claims center in Andover will relocate from Old Town Hall to a new location on Main Street, officials said Saturday.

The company said 158 construction crews will be working Sunday to continue replacing and servicing lines in Andover, North Andover, and Lawrence. The project follows last month’s devastating fires and explosions that forced hundreds of people from their homes and shuttered businesses.

Columbia so far has completed 34.4 miles, or about 77 percent of the nearly 45-mile project, officials said.

Meanwhile, the town of Andover announced that a Columbia claims center set up to assist local residents will move to 45 Main St. Starting Monday, the center will be open from noon to 8 p.m. on weekdays and from 9 a.m. to 2 p.m. Saturday, the town said in a statement.

The Greater Lawrence Disaster Relief Fund, which provides short-term financial assistance to people affected by the project, will also be moving to two new locations, according to Andover officials.

Representatives of the fund will be available at the Andover/North Andover YMCA weekdays from 4 p.m. to 6 p.m. and the Lawrence Senior Center on Monday, Tuesday, and Thursday, 11 a.m. to 7 p.m. and Friday from 11 a.m. to 3 p.m., officials said.