Nf Little River Mps 4b Reservoir Report
Last Updated: December 14, 2025
Nf Little River Mps 4b, also known as Lake Tandy, is a water supply dam located in Christian, Kentucky.
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Summary
Built in 1965 by the Soil Conservation Service, USDA/NRCS, this earth dam stands at a height of 45 feet, with a length of 1000 feet, and a storage capacity of 4990 acre-feet. The dam serves the primary purpose of water supply for the region, with a normal storage capacity of 540 acre-feet and a surface area of 77.7 acres.
Owned by the local government and regulated by the Kentucky Division of Water, Nf Little River Mps 4b is classified as having a high hazard potential and a fair condition assessment. The spillway is uncontrolled, with a width of 150 feet, and the dam has a drainage area of 6.11 square miles. The last inspection in December 2017 found the dam to be in fair condition, with moderate risk (3) identified. Emergency Action Plans (EAP) are in place, but there are no specifics on their current status or adherence to guidelines.
Situated along the North Fork Little River, this dam plays a crucial role in water resource management in the area. With its significant storage capacity and vital water supply function, Nf Little River Mps 4b is a key infrastructure for ensuring water security and resilience in Christian, Kentucky.
Year Completed |
1965 |
Dam Length |
1000 |
Dam Height |
45 |
River Or Stream |
NORTH FORK LITTLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
77.7 |
Drainage Area |
6.11 |
Nid Storage |
4990 |
Hazard Potential |
High |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pond River Near Apex
|
38cfs |
Little River Near Cadiz
|
485cfs |
Tradewater River At Olney
|
24cfs |
Red River At Port Royal
|
188cfs |
Green River At Paradise
|
1830cfs |
Yellow Creek At Ellis Mills
|
33cfs |
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.
Nf Little River Mps 4b