PERHAM - The Maine Department of Transportation is replacing the Salmon Stream Bridge in Perham. The bridge is on Route 228 between Mouse Island Road and Carson Road. The current structure was installed in 1967 and is past its useful life. We will be replacing it with a concrete box culvert that is 24 feet wide. Work began this week and is expected to be finished by the end of August. The road is closed until August 15th. Signs direct drivers to a detour route. There are no nearby homes. The contractor on this project is Soderberg Construction of Caribou. The contract amount is approximately $864,000.