The Cape May County Municipal Utilities Authority is replacing and rehabilitating the force mains that carry wastewater to the treatment plant on the bay at 45th Street. The work will be on 31st Street from Haven Avenue to Bay Avenue and Bay Avenue from 31st Street to Eighth Street.Work for the week of Sept. 23 to 27:Beginning on Monday, the contractor will begin digging and installing pipe on 31st Street between Haven Avenue and Bay Avenue. Traffic:Bay Avenue will be closed between 34th Street and 24th Street. Traffic detours will be established to divert motorists to West Avenue. Only local traffic will be permitted on Bay Avenue. Motorists should watch out for detours on Bay Avenue during construction work.