In 2012, the Maine Department of Transportation (MDOT) proposed a mitigation project at Long Reach Lane in Harpswell (Figure 1) to compensate for the functional impacts to marine wetlands associated with the construction of the Martin’s Point Bridge between Falmouth and Portland. The mitigation project took place in January and February 2014, and resulted in the successful replacement of a 36” (7.1 ft 2 flow area) round concrete pipe beneath Long Reach Lane with a larger 6’ x 12’ concrete box culvert (72 ft 2 flow area) in February 2014 (photo MDOT, below).
Craig, M. (2015). Long Reach Lane at Long Marsh, Harpswell, 2015 Post-Project Monitoring Report; Year 2 of 5. Portland, ME: University of Southern Maine, Muskie School of Public Service, Casco Bay Estuary Partnership.