Cascade Wastewater Lagoon Dam
Cascade Wastewater Lagoon Dam is an earth dam located in Coos County, New Hampshire, built in 1975. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Cascade Wastewater Lagoon Dam
Cascade Wastewater Lagoon Dam is a dam in Coos, New Hampshire. The dam is owned by Gorham Acquisitions Llc (private). It impounds the Na near Gorham.
The dam stands 13 feet tall and stretches 3,000 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/28/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Coos |
| Nearest City | Gorham |
| River/Stream | Na |
| Coordinates | 44.44350, -71.18790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 3,000 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 70 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | GORHAM ACQUISITIONS LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/28/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH00606 |
| Federal ID | NH00606 |
| More Info | State Dam Safety Program |