Gregg Dam 1340 Reservoir Report
Nearby: Hemelstrand Farms Dam Nelson Dam 3511
Last Updated: December 6, 2025
Gregg Dam 1340, located in Gosper County, Nebraska, is a privately owned structure designed by the USDA NRCS with a primary purpose of providing fire protection, stock watering, and serving as a small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1953, this earth dam stands at a height of 12 feet and spans a length of 219 feet, with a storage capacity of 71 acre-feet and a maximum discharge of 2413 cubic feet per second. The dam is situated on TR-DRY CREEK and falls under the regulatory jurisdiction of the Nebraska Department of Natural Resources.
Despite its low hazard potential and unassessed condition, Gregg Dam 1340 plays a crucial role in water resource management in the region, particularly for fire prevention and agricultural activities. The dam's inspection frequency is set at 5 years, with the most recent assessment conducted in April 2019. While the dam has not been rated for its condition, it continues to serve its intended purposes effectively. With its strategic location and functional design, Gregg Dam 1340 remains a vital asset for the local community's water needs and environmental conservation efforts.
Year Completed |
1953 |
Dam Length |
219 |
Dam Height |
12 |
River Or Stream |
TR-DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
12 |
Drainage Area |
1.6 |
Nid Storage |
71 |
Structural Height |
12 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Republican River At Cambridge
|
60cfs |
Beaver Creek Near Beaver City
|
1cfs |
Sappa Creek Near Stamford
|
4cfs |
Republican River Near Orleans
|
59cfs |
Platte River Near Overton
|
1040cfs |
Sappa C Nr Lyle
|
1cfs |
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.
Gregg Dam 1340