I-91 Detention Basin Dam is an earth dam located in Hartford County, Connecticut. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 15 ft15 ft tall and 200 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 I-91 Detention Basin Dam
I-91 Detention Basin Dam is a dam in Hartford, Connecticut. The dam is owned by Connecticut Dot (state).
The dam stands 15 feet tall and stretches 200 feet across, creates a reservoir covering 1 acres, and collects water from a drainage area of 52 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. The most recent inspection on record was 09/12/2017.
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Location
| State | Connecticut |
| County | Hartford |
| Coordinates | 41.81464, -72.66266 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 200 ft |
Storage & Hydraulics
| Surface Area | 1 acres |
| Drainage Area | 52 sq mi |
Ownership & Safety
| Owner | Connecticut Dot |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/12/2017 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT01928 |
| Federal ID | CT01928 |
| More Info | State Dam Safety Program |