In order to restore the historic Longfellow Bridge, the Massachusetts Highway Department and the Massachusetts Department of Conservation and Recreation are heading up a federally funded project to repair the structure’s deterioration and improve its ramped approaches. In addition to providing two-way vehicular, pedestrian, and bicycle access across the river; the bridge carries the Massachusetts Bay Transportation Authority’s (MBTA’s) Red Line.
Nitsch Engineering provided surveying services on the project’s preliminary design team. We performed extensive topographic surveys for the entire length (2,135 feet) of the bridge and its approaches, extending 500 feet in each direction. Nitsch Engineering also provided deed and plan research at the Suffolk and Middlesex Registries of Deeds and other agencies in order to retrace the right-of-way lines for the bridge, abutting roadways, and the MBTA; pierhead and bulkhead lines; and the City line between Boston and Cambridge. We performed an extensive track survey for the relocation and improvement of the MBTA Red Line, in which we will locate features such as the tracks, insulated joints, switches, junction boxes, and utilities. We also supervised the hydrographic survey of a portion of the Charles River.