The primary objective of this project was to reestablish natural hydrology, and specifically, to restore natural tidal variability into the Appletree Marsh adjacent to Wallace Shore Road in Harpswell (Fig. 2, following page). Two existing culverts were replaced according to amended designs provided with permit applications: A 3.3’ box culvert was replaced with a 15’ open bottom span concrete box culvert, and a 18” HDPE culvert was replaced with a 5’ pre‐cast concrete culvert (Fig. 1). At the 15’ open bottom box, remnant slugs of fill from the original crossing structure were dredged from the channel immediately adjacent to the crossing in order to promote the free exchange of water into and out of the marsh.
Craig, M. (2015). Wallace Shore Road in Harpswell, Tidal Restriction Restoration 2015 Monitoring Report. Portland, ME: University of Southern Maine, Muskie School of Public Service, Casco Bay Estuary Partnership.