PORTSMOUTH, N.H. — The construction company rebuilding the Memorial Bridge between New Hampshire and Maine said crews are working double shifts to get the project done.

Archer Western has been working on the approaches for the bridge on both sides as well as installing micropiles on three piers.

Officials said the first section of the bridge will be floated upriver by barge in January. The barge will then return to the New Hampshire State Pier, where construction of the north fixed span portion of the bridge will begin.