Pursuant to Executive Order 11990 (Wetlands) and Federal Emergency Management Agency’s (FEMA) implementing regulations at Title 44 of the Code of Federal Regulations Part 9, FEMA hereby provides final notice of its decision to provide Hazard Mitigation Grant Program funding for an action located in a floodplain and wetland. Funding would be provided through the New Hampshire Homeland Security and Emergency Management to the Town of Goffstown to increase the capacity of the Montelona Road culvert.
The action is located on Montelona Road in Goffstown, NH. The existing 64-IN wide by 43-IN-high corrugated metal pipe-arch culvert would be replaced with a 12 FT span by 5 FT rise (2 FT buried) concrete box culvert. The box culvert would include full headwalls to prevent slope failure at the inlet and outlet of the box. The proposed structure would include simulated streambed material to promote aquatic passage that does not exist today. The wider structure would increase the span length to widen the stream and better match the upstream and downstream bankfull width.
The project is partially within delineated wetlands. The project would increase the capacity of the Montelona Road culvert and is intended to reduce flooding and improve hydraulic conditions. A map of the area of available upon request.
The project must in be in a wetland because of the nature and purpose of the project. Alternatives were considered, including a no-action alternative, and replacement with a bridge. The preferred alternative would be a more efficient design to address the current undersized culvert problem. Grant conditions will also require compliance with all federal, state, and local laws, including coordination with the NH Department of Environmental Services Wetlands Bureau.
Map requests and comments about this project and potential floodplain and wetland impacts should be submitted within 15 days of the date of this publication to:
Sarah Albers, Environmental Protection Specialist
Federal Emergency Management Agency, Cambridge, MA
Sarah.Albers@fema.dhs.gov; (202) 412-7926