Levees / By state / New Hampshire

Levee systems in New Hampshire

5 systems on the federal register, with 455 people recorded living behind the 5 of them that publish a population figure.

Systems
5
current records
People behind them
455
across 5 systems
Miles of levee
2.9
across 5 systems
Not accredited
20%
1 of 5
01

Every system in New Hampshire

5 records
SystemLocationAccreditationPeopleLength
Merrimack River RB - Nashua, NHNashua, Hillsborough County, New HampshireAccredited1960.71 miles
Cocheco River Levee Farmington, NHFarmington, Strafford County, New HampshireAccredited1730.52 miles
East Branch Pemigewasset River - Lincoln, NHLincoln, Grafton County, New HampshireAccredited480.36 miles
Exeter NH Sewage Treatment Levee 1Exeter, Rockingham County, New HampshireAccredited380.90 miles
Water Treatment Facility LeveeLincoln, Grafton County, New HampshireNon-Accredited00.36 miles

Source: USACE National Levee Database, refreshed 2026-09-10. Accreditation status describes a system against a design flood event and is not a safety score. What it means.