Plattsmouth 7-C Reservoir Report
Nearby: Plattsmouth 4-A Plattsmouth 10-A
Last Updated: December 12, 2025
Plattsmouth 7-C is a local government-owned dam located in Cass County, Nebraska, along TR-Four Mile Creek.
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Summary
Designed by USDA NRCS and completed in 1959, this earth dam stands at a height of 26 feet with a hydraulic height of 25 feet, serving the primary purpose of flood risk reduction. With a normal storage capacity of 4 acre-feet and a maximum discharge of 444 cubic feet per second, Plattsmouth 7-C plays a crucial role in managing water flow in the area.
Managed by the Nebraska Department of Natural Resources, Plattsmouth 7-C is regulated, permitted, inspected, and enforced by state agencies to ensure its structural integrity and safety. Despite being assessed as in fair condition with a high hazard potential, this dam has not undergone recent modifications or risk assessments. With a surface area of 1 acre and a drainage area of 0.04 square miles, Plattsmouth 7-C is a key component of the local water resource infrastructure, safeguarding the surrounding community from potential flood events.
This dam, located within the jurisdiction of Nebraska, is essential for protecting the residents of Plattsmouth and the region from flood risks. As a structure managed by local government and designed by USDA NRCS, Plattsmouth 7-C stands as a testament to the collaborative efforts in water resource management. With its strategic placement along TR-Four Mile Creek and adherence to state regulations, Plattsmouth 7-C continues to play a vital role in mitigating flood dangers and ensuring water security for the community.
Year Completed |
1959 |
Dam Length |
170 |
Dam Height |
26 |
River Or Stream |
TR-FOUR MILE CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
25 |
Drainage Area |
0.04 |
Nid Storage |
19 |
Structural Height |
30 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Platte R At Louisville Ne
|
8100cfs |
Weeping Water Creek At Union
|
20cfs |
Missouri River At Omaha
|
17800cfs |
West Nishnabotna River At Randolph
|
439cfs |
Big Papillion Cr
|
38cfs |
Platte R Nr Ashland
|
6290cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Offutt AFB Military
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FAMCamp
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Pony Creek Co Park
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Haworth City Park - Bellevue
|
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Glenwood Lake Park
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Camp Wakonda
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Plattsmouth 7-C
Plattsmouth Boat Ramp