Summary
Built in 1964 by the USDA NRCS, this structure serves primarily for recreational purposes. With a height of 18 feet and a length of 392 feet, John Job has a storage capacity of 57 acre-feet and a drainage area of 2.57 square miles. The dam has a low hazard potential and is classified as not rated in terms of its condition assessment.
Despite being a private dam, John Job is regulated by the Montana Department of Natural Resources Conservation (DNRC) and is subject to state permitting, inspection, and enforcement. The dam features an uncontrolled spillway with a width of 80 feet and a maximum discharge capacity of 740 cubic feet per second. The risk assessment for John Job is moderate, indicating a level 3 risk, but specific risk management measures and emergency action plans are currently not available.
Located in Wibaux County, John Job is situated in a scenic area surrounded by nature, making it an ideal spot for outdoor enthusiasts and water resource aficionados. With its historical significance dating back to the 1960s, John Job continues to provide valuable recreational opportunities while being closely monitored by state regulatory agencies to ensure public safety and environmental protection.
Year Completed |
1964 |
Dam Length |
392 |
Dam Height |
18 |
River Or Stream |
TR-BOX ELDER CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Drainage Area |
2.57 |
Nid Storage |
57 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Beaver Creek Nr Trotters
|
0cfs |
Yellowstone River At Glendive Mt
|
6000cfs |
Little Missouri River At Medora
|
64cfs |
Yellowstone River Near Sidney Mt
|
6130cfs |
Deep Creek Nr Amidon
|
0cfs |
Little Missouri River At Marmarth
|
12cfs |
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.
John Job