Drew Reservoir Report
Nearby: Shack Lake Lloyd Lake
Last Updated: December 5, 2025
"Drew" is a privately owned earth dam located in Lawrence, Tennessee, specifically on Dry Branch.
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Summary
Built in 1991, this dam serves multiple purposes including fire protection, stock, and small fish pond maintenance. With a structural height of 33 feet and a length of 250 feet, Drew has a normal storage capacity of 116 acre-feet and covers a surface area of 10 acres. Despite not being regulated by the state, this dam has a high hazard potential and is classified as having a moderate risk level.
Although the dam has not been rated for its condition assessment, it undergoes inspections every five years, with the last inspection conducted in May 2020. The spillway type for Drew is uncontrolled, with no outlet gates or associated structures. In the event of an emergency, the presence of an Emergency Action Plan (EAP) is unspecified. With a risk assessment rating of moderate, Drew poses a potential risk that requires attention and management measures to ensure the safety and security of the surrounding area and its inhabitants.
Year Completed |
1991 |
Dam Length |
250 |
River Or Stream |
DRY BRANCH |
Primary Dam Type |
Earth |
Surface Area |
10 |
Nid Storage |
116 |
Structural Height |
33 |
Hazard Potential |
High |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Shoal Creek At Iron City
|
422cfs |
Elk River At Prospect
|
2960cfs |
Cypress Creek Near Florence Al
|
152cfs |
Big Nance Creek At Courtland Al
|
51cfs |
Fountain Creek Near Fountain Heights
|
3cfs |
Buffalo River Near Flat Woods
|
443cfs |
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.
Drew