Nationwide Permit 2 authorizes the construction of structures within artificial canals. These canals must be located within principally residential developments where the original connection between the canal and a navigable water of the United States has been previously authorized by the Corps. The scope of this permit is limited to Section 10 of the Rivers and Harbors Act of 1899. It specifically covers structures that might affect navigable waters but does not authorize the discharge of dredged or fill material into those waters, which would require separate Clean Water Act Section 404 authorization.
The 2026 reissuance of NWP 2 includes no substantive changes to its terms or conditions. The Corps reevaluated the permit's potential impacts and determined that the existing framework remains sufficient to ensure that authorized activities result in no more than minimal individual and cumulative adverse environmental effects. Although no text modifications were made to the permit itself, the Corps updated the underlying decision document with current environmental data, including 2022 National Lakes Assessment results and 2021 National Wetland Condition Assessment findings, to support the continued use of this permit.
Real estate developers and waterfront homeowners in residential communities use this permit. It is specifically for those looking to build minor structures in man-made canal systems that are already connected to larger navigable waterbodies.
The Corps determined that reissuing NWP 2 has 'no effect' on federally-listed endangered or threatened species or their critical habitat. This finding is based on the safeguard that no activity is authorized if it 'may affect' listed species unless a project-specific ESA Section 7 consultation is completed. Compliance with the National Historic Preservation Act is handled through General Condition 20, which requires case-by-case review if an activity has the potential to affect historic properties. The permit is also found to comply with Essential Fish Habitat provisions of the Magnuson-Stevens Act, with district engineers empowered to add special conditions to protect these resources.
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