Sun Valley Lake Dam is an earth dam located in Tolland County, Connecticut, built in 1964. It carries a Significant hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 400 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sun Valley Lake Dam
The primary purpose of Sun Valley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Minor (private). It impounds the Patten Brook near Stafford.
The dam stands 15 feet tall and stretches 400 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 72 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1964, 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. The most recent inspection on record was 10/17/2008. That was over 17 years ago.
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Location
| State | Connecticut |
| County | Tolland |
| Nearest City | Stafford |
| River/Stream | Patten Brook |
| Coordinates | 41.97587, -72.36278 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 400 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 72 acre-ft |
| Max Storage | 72 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 738 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Minor |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/17/2008 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00671 |
| Federal ID | CT00671 |
| More Info | State Dam Safety Program |