Culvert Survey Training

The Massachusetts Division of Ecological Restoration (DER) provides training on assessing culverts to determine if they are barriers for fish and wildlife.

Culvert Survey Training

DER partners with the North Atlantic Aquatic Connectivity Collaborative (NAACC) to provide training on how to evaluate if a road-stream crossing is a barrier to fish and wildlife passage. There are more than 25,000 culverts and small bridges in Massachusetts. More than half of these stream crossings are barriers to fish passage. Undersized culverts can also be damaged during storm events.

The NAACC is a network of individuals from universities, conservation organizations, and state and federal agencies from the 13-state, North Atlantic Region. The Network provides tools and information on where restoration projects are likely to have the greatest benefits for aquatic connectivity and resiliency. The NAACC manages a public database of road-stream crossings:

Become certified as a lead observer or coordinator

Assessments are conducted by certified Lead Observers following the NAACC protocols for assessing fish and wild passage. To be certified as a lead observer, a person must satisfy three training components:

  • Online protocol training (3 hours)
  • In-person field training (4–6 hours)
  • Shadowing an experienced observer at 20 sites

If you are interested in starting a survey in your community and wish to receive training, please contact: Jacob Lehan, Stream Crossing Assessment Coordinator, (413) 579-3016 or

Find training dates and locations.

What do you need to know and bring the day of the field training?

Participants should be prepared for inclement weather and field conditions. Field Trainings will be held rain or shine though thunderstorms, high winds and/or high flow conditions may cause the training to be delayed or canceled.

Some equipment will be available to participants. However, we encourage you to bring the following if you have these items available:

  • Lunch, water, and snacks
  • Waders, hip boots, or other shoes you are willing to get wet
  • Sun protection, insect repellent, Tecnu
  • GPS unit
  • Digital camera
  • Safety reflective vest
  • Flashlight
  • First aid kit
  • Clipboard, pencil, and eraser


For additional information please explore the following resources.

Help Us Improve with your feedback