Oak-middle 87-a is an earth dam located in Seward County, Nebraska, built in 1968. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 910 ft long, taller than 78% 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 Oak-middle 87-a
The primary purpose of Oak-middle 87-a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lower Platte South Natural Resources District (local government). It impounds the Middle Oak Creek near Raymond.
The dam stands 34 feet tall and stretches 910 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 586 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1968, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/30/2021.
At 34 feet, this dam is taller than 78% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Nebraska |
| County | Seward |
| Nearest City | Raymond |
| River/Stream | Middle Oak Creek |
| Coordinates | 41.02379, -97.01218 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 33 ft |
| Dam Length | 910 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 586 acre-ft |
| Max Storage | 586 acre-ft |
| Normal Storage | 107 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 630 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Platte South Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/30/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00081 |
| Federal ID | NE00081 |
| More Info | State Dam Safety Program |