Longley Dam is an earth dam located in Dawson County, Nebraska, built in 1946. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 180 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 Longley Dam
Longley Dam is a dam in Dawson, Nebraska. The dam is owned by Brandon L Nuttelman Et Al (private). It impounds the Tr-crooked Creek near Overton.
The dam stands 11 feet tall and stretches 180 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1946, the structure is well-established, with more than 75 years of service.
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. The most recent inspection on record was 04/27/2020.
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Location
| State | Nebraska |
| County | Dawson |
| Nearest City | Overton |
| River/Stream | Tr-crooked Creek |
| Coordinates | 40.91223, -99.70759 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 180 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,245 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Brandon L Nuttelman Et Al |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/27/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01424 |
| Federal ID | NE01424 |
| More Info | State Dam Safety Program |