Colorado Avenue in Santa Monica is being reduced to one eastbound lane between Ocean Avenue and Second Street for the next few months as part of a project to construct a new relief sewer line.

Under the project, Colorado Avenue is reduced from four lanes to one eastbound lane between Ocean Avenue and Second Street. Westbound Colorado Avenue is detoured at Second Street to Broadway to minimize traffic impacts. Officials hope to reopen all lanes by Memorial Day, said Greg DeVinck, project manager.

The City of Santa Monica was scheduled to begin construction on its Colorado-Ocean Relief Sewer Project Wednesday, January 9th, to repair an existing sewer line that was damaged during the 1994 Northridge earthquake.

The $8.5-million project, funded by wastewater funds and a grant from the Federal Emergency Management Agency, includes the construction of a new relief sewer line and the rehabilitation of the existing sewer pipe to provide additional capacity, city officials said.

Pedestrian access to businesses along Colorado and through the construction area will be maintained during the construction, DeVinck said.

The Colorado-Ocean sewer line, considered the backbone of the city’s northern sewer system, was constructed in the 1950s and does not have the capacity to meet the future needs of the city, officials said.

City officials said they expect the new sewer to operate more efficiently and to require less maintenance and fewer repairs in the future.

The city has taken a proactive approach to mitigating potential construction impacts, including posting detour signage, notifying the public and recommending alternate routes, DeVinck said. Signs will be posted in work areas, key thoroughfares and intersections, and at freeway off-ramps.

Officials also met with businesses along Colorado to receive input on potential construction concerns.

The sewer project is expected to be completed in May next year.

Information, (866) 755-7679.