Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Connecticut's Wetlands

tidal wetlands image    inland wetland image

Wetlands provide important ecological, economic and social benefits. They provide habitat for fish, wildlife and plants, reduce flooding, and support cultural and recreational activities. Wetlands are commonly identified using familiar terms such as marsh, swamp, bog, bank, or meadow, occurring within or near different types of watercourses. Connecticut has very specific legal definitions for tidal wetlands and inland wetlands, which differ from the federal definitions and may differ from the definitions used in other states.

Tidal Wetlands


Inland Wetlands and Watercourses

Vernal Pools

Federal Wetlands Information

National Wetlands Inventory (NWI+)

U.S. Army Corps of Engineers

U.S. Environmental Protection Agency


Content last updated on March 18, 2020.