Repair work started this week on the Bridge Street bridge over the Saugatuck River in the town's Saugatuck section. The span was damaged during Superstorm Sandy.

The contractor, Cianbro Construction Co., will be working through the beginning of April to make repairs to both the mechanical and electrical components of the swing bridge, formally known as the William F. Cribari Bridge, First Selectman Gordon Joseloff said in a statement Monday. The time frame for the repairs is dependent on what, if any, additional damages are found during the execution of the planned work, Joseloff said.

Traffic will be primarily affected at night, when the bridge will be closed to remove or replace mechanical components. Some short daytime shutdowns may also be necessary, Joseloff said.

The contractor will be in direct contact with the First Selectman's office to provide notice of closures. In addition, the contractor will post information in advance on either end of the bridge using electronic message boards. The state will set up detour signs during the closures and Westport police will direct traffic during these periods.

Once the mechanical equipment is removed from the bridge for repair, it will be essentially inoperable, according to the contractor. If necessary, the bridge can be opened manually, but this action will require at least 24 hours to do physically, and must be coordinated with the state and the contractor well in advance, according to the statement issued by the town.

The span in its closed "normal" position will still be passable to small vessels. The clearance underneath at mean high water is approximately 7 feet.

These conditions will apply during the full two months of repairs, the contractor said.