Aquatic Connectivity and Stream Restoration
We are currently involved in a state-wide, multi-group effort to identify, assess, and replace stream-road crossings (culverts, bridges, roads, etc.) or in-stream structures (dams, etc.) where humans have altered natural stream function and/or
According to the interagency, Stream Connectivity Work Group (SCWG), approximately 45% of more than 5,000 stream-road crossings surveyed on public lands in Maine represent physical barriers to fish, particularly the juvenile Brook Trout and Atlantic Salmon. These barriers range from undersized, perched, and debris-blocked culverts to remnant log-drive dams or hydroelectric dams.
In addition to blocking fish passage, such barriers also decrease ecological stream function, such as temperature regulation, sediment flow, and resilience to flood events.
"On the Ground" Restoration
Since 2005, the Maine Fishery Resources Office has provided technical expertise in order to assist partners with the completion of 196 aquatic connectivity projects that have restored unhindered fish passage and ecological stream processes to more than 650 miles of stream habitat in Maine watersheds. Nearly all of these restoration efforts have been conducted within designated critical habitat for endangered Atlantic salmon.
We remove these barriers and often replace them with structures, such as bridges or open-arch culverts, that span at least 1.2 times the bankfull width of the natural stream.
If you are interested in submitting a project proposal for an on-the-ground stream restoration/ fish passage project, please see our funding page for more information. If you have any remaining questions, feel free to contact us.
Maine Stream Viewer. Maine Stream Connectivity Work Group and Maine Office of GIS. (An online mapping tool that allows you to view the locations of surveyed barriers on public lands in Maine)
Carloe Brook Fish Passage Project
Projects & Proposals
Eastern Brook Trout Joint Venture
Atlantic Coastal Fish Habitat Partnership
Last updated: February 29, 2016