Trahos Dam Reservoir Report
Last Updated: February 22, 2026
Trahos Dam, also known as Dejarn, is a vital water resource structure located in Caroline, Virginia.
Summary
Managed by the Department of Conservation and Recreation, this earth dam serves the primary purpose of irrigation along the tributary of the Mattaponi River. Standing at a height of 23 feet with a length of 350 feet, Trahos Dam has a storage capacity of 53 acre-feet, making it a crucial water management asset in the region.
Although the condition assessment of Trahos Dam is currently not rated, its hazard potential is undetermined. With no recent inspection data available, the emergency action plan status and risk assessment measures for the dam remain unknown. Despite these uncertainties, Trahos Dam plays a significant role in supporting irrigation activities and water resource management in the area, showcasing its importance for local climate and water enthusiasts.
As a key infrastructure in the region, Trahos Dam warrants further attention and monitoring to ensure its continued safety and functionality. With its important role in water resource management and irrigation, Trahos Dam stands as a crucial asset for climate and water enthusiasts, highlighting the intersection of infrastructure, climate, and water resource management in the region.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Dam Length |
350 |
Dam Height |
23 |
River Or Stream |
trib. Mattaponi R. |
Hydraulic Height |
23 |
Nid Storage |
53 |
Structural Height |
23 |
Hazard Potential |
Undetermined |
Nid Height |
23 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Mattaponi River Near Bowling Green
|
363cfs |
North Anna River At Hart Corner Near Doswell
|
344cfs |
Mattaponi River Near Beulahville
|
934cfs |
Little River Near Doswell
|
219cfs |
Pamunkey River Near Hanover
|
1230cfs |
South Anna River Near Ashland
|
727cfs |
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.
Trahos Dam