Sandy Ridge Lagoon 1 Dam is an earth dam located in Holt County, Nebraska, built in 2013. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 40 ft40 ft tall and 2,240 ft long, taller than 86% 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 embankment section and the water level is illustrative.
About Sandy Ridge Lagoon 1 Dam
Sandy Ridge Lagoon 1 Dam is a dam in Holt, Nebraska. The dam is owned by Riverview LLP (private). It impounds the Tr-niobrara River.
The dam stands 40 feet tall and stretches 2,240 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 91 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2013, the structure is relatively new.
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 03/21/2023.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Nebraska |
| County | Holt |
| Nearest City | None |
| River/Stream | Tr-niobrara River |
| Coordinates | 42.85457, -99.04551 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 2,240 ft |
| Year Completed | 2013 (13 years old) |
Storage & Hydraulics
| NID Storage | 91 acre-ft |
| Max Storage | 91 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Riverview LLP |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/21/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE09681 |
| Federal ID | NE09681 |
| More Info | State Dam Safety Program |