Green River Lock and Dam 1 is a concrete dam located in Henderson County, Kentucky, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 908 ft long. 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 Green River Lock and Dam 1
The primary purpose of Green River Lock and Dam 1 is navigation. The dam maintains water levels sufficient for boat and barge traffic, supporting commercial or recreational navigation on the waterway. The dam is owned by USACE - Louisville District (federal). It impounds the Green River near Spottsville.
The dam stands 23 feet tall and stretches 908 feet across, creates a reservoir covering 3,764 acres, has a maximum storage capacity of 62,400 acre-feet, and collects water from a drainage area of 9,183 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 08/18/2023.
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Location
| State | Kentucky |
| County | Henderson |
| Nearest City | Spottsville |
| River/Stream | Green River |
| Coordinates | 37.85884, -87.40986 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 23 ft |
| Dam Length | 908 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 62,400 acre-ft |
| Max Storage | 62,400 acre-ft |
| Normal Storage | 41,404 acre-ft |
| Surface Area | 3,764 acres |
| Drainage Area | 9,183 sq mi |
| Max Discharge | 14,000 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Navigation |
| Owner | USACE - Louisville District |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/18/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KY03002 |
| Federal ID | KY03002 |
| More Info | State Dam Safety Program |