Perched Culvert
Perched Culvert

Safe and stable stream crossings can accommodate wildlife and protect stream health while reducing expensive erosion and structural damage. Stream Continuity works to reduce impediments to movement of fish, wildlife and other aquatic life that require instream passage. The River Continuity Partnership is a collaborative effort with DER, the University of Massachusetts Extension, The Nature Conservancy, and other nonprofit and agency partners.


Volunteers continue to survey the 30,000 road-stream crossings throughout the Commonwealth of Massachusetts to determine the location and extent of barriers to the movement of fish and wildlife. Stream Continuity Data Sheets and the instruction manual are available for download below. Also below are instructions for cataloging culvert photos for each site. Please contact us for maps and crossing codes for your area if you have not already done so. If you are interested in starting a survey in your community and wish to receive training by one of our staff members, please contact: Carrie Banks 413-579-3015.

Culvert Measuring
Culvert Measuring

Stream Continuity Resources

Stream Crossing Forms and Guides

Quality Assurance Project Plan for Demonstration Project

River & Stream Crossing Continuity Assessment QAPP  pdf format of Stream Crossing Continuity Assessment QAPP

Road-Stream Crossing Inventory Database

Stream Crossing Handbook and Poster

 The Stream Crossing Handbook and Poster, below, are designed to inform and educate local decision makers and conservationists about the importance of properly designed stream crossings. The Stream Crossing Standards, as described in the Handbook are required as part of the Army Corps of Engineers Programmatic General Permit, and should be used when designing new crossings on perennial streams. Every town Conservation Commission and Department of Public Works has received a copy for their use in permitting, designing and maintaining stream crossings. Please download and share the information from the handbook, encourage your town to hang the poster, and support the use of the standards in your community.

Massachusetts Stream Crossing Handbook pdf format of Massachusetts Stream Crossing Handbook
file size 3MB (pdf)
(Updated June 2012) 

Massachusetts Stream Crossing Poster  pdf format of Massachusetts Stream Crossing Poster
file size 2MB

Additional Stream Continuity Documents and Links

Stream Crossing Standards  pdf format of Stream Crossing Standards

North Atlantic Aquatic Connectivity Collaborative

Massachusetts Stream Crossing Standards (March 1, 2011)

Army Corp of Engineers Massachusetts General Permit

Gulf of Maine Times Article on Culverts

Riversmart Communities

Maine StreamSmart  

Conservation Assessment and Prioritization System