Collins Company Lower Dam is a concrete dam located in Hartford County, Connecticut. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 33 ft33 ft tall and 400 ft long, taller than 76% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Collins Company Lower Dam
The primary purpose of Collins Company Lower Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Connecticut Deep (state). It impounds the Farmington River.
The dam stands 33 feet tall and stretches 400 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 690 acre-feet, and collects water from a drainage area of 360 square miles.
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 04/28/2015. That was over 11 years ago.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Connecticut |
| County | Hartford |
| River/Stream | Farmington River |
| Coordinates | 41.80050, -72.92711 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 400 ft |
Storage & Hydraulics
| NID Storage | 690 acre-ft |
| Max Storage | 690 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 360 sq mi |
| Max Discharge | 33,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Connecticut Deep |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/28/2015 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00380 |
| Federal ID | CT00380 |
| More Info | State Dam Safety Program |