Tommeheton Lake Reservoir Report
Nearby: Birchin Lake Pee Wee Dam
Last Updated: December 5, 2025
Tommeheton Lake, located in Dinwiddie, Virginia, is a Federal-owned water resource managed by the US Army.
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Summary
Built in 1942, this Earth-type dam serves multiple purposes including fire protection, stock, and recreation. With a capacity of 557 acre-feet and a surface area of 51 acres, the lake provides a significant water source for the region.
Despite its low hazard potential, Tommeheton Lake has a moderate risk assessment due to its outdated infrastructure and lack of recent condition assessments. The dam stands at a structural height of 25 feet and has a hydraulic height of 22 feet, ensuring the safety of the surrounding areas. However, the last inspection conducted was in 1995, highlighting the need for updated assessments to ensure the continued safety and functionality of the dam.
Water resource enthusiasts will appreciate the recreational opportunities offered by Tommeheton Lake, as well as its importance in providing fire protection and stock for the area. The lake's uncontrolled spillway and moderate risk assessment emphasize the need for ongoing maintenance and monitoring to ensure the safety and sustainability of this valuable water resource in Virginia.
Year Completed |
1942 |
Dam Length |
450 |
Primary Dam Type |
Earth |
Surface Area |
51 |
Hydraulic Height |
22 |
Drainage Area |
17 |
Nid Storage |
557 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nottoway River Near Rawlings
|
157cfs |
Stony Creek Near Dinwiddie
|
32cfs |
Deep Creek Near Mannboro
|
96cfs |
Meherrin River Near Lawrenceville
|
238cfs |
Appomattox River At Matoaca
|
498cfs |
Appomattox River At Mattoax
|
309cfs |
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.
Tommeheton Lake