Exeter Sewage Lagoon Dam
Key Takeaway
Exeter Sewage Lagoon Dam is classified as significant hazard in New Hampshire. It was completed in 1989 and is 37 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 28.2% in NH) |
| Dam Length | 1,270 ft |
| Dam Type | Earth |
| Max Storage | 55 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 30 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | NH00977 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TOWN OF EXETER PUBLIC WORKS
Local Government
Nearby Dams
Exeter Reservoir Dam
Rockingham, NH
High Hazard 15 ftExeter Sewage Holding Pond Dam
Rockingham, NH
Significant Hazard 10 ftNewfields Sewage Lagoon Dam
Rockingham, NH
Significant Hazard 19 ftPiscassic Ice Pond Dam
Rockingham, NH
Low Hazard 12 ftPickpocket Dam
Rockingham, NH
High Hazard 15 ftTaylor River Pond Dam
Rockingham, NH
Unknown 14 ftMacallen Dam
Rockingham, NH
High Hazard 27 ftBodwell Septage Facility Dam
Rockingham, NH
Significant Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Exeter Sewage Lagoon Dam?
Exeter Sewage Lagoon Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Exeter Sewage Lagoon Dam?
Exeter Sewage Lagoon Dam is owned by TOWN OF EXETER PUBLIC WORKS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Exeter Sewage Lagoon Dam built?
Exeter Sewage Lagoon Dam was completed in 1989, making it 37 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Exeter Sewage Lagoon Dam?
Exeter Sewage Lagoon Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Exeter Sewage Lagoon Dam?
Exeter Sewage Lagoon Dam has a dam height of 12 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Exeter Sewage Lagoon Dam last inspected?
Exeter Sewage Lagoon Dam was last inspected on September 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.