Porter Reservoir Report
Nearby: Watts Bar Dam Lemons
Last Updated: December 6, 2025
Porter, located in Dayton, Tennessee, is a private dam on Yellow Creek with a primary dam type of Earth.
°F
°F
mph
Wind
%
Humidity
Summary
It has a structural height of 10 feet and a hydraulic height of 8 feet, with a dam length of 1300 feet. The dam has a storage capacity of 66 acre-feet and a surface area of 22 acres, serving a drainage area of 0.19 square miles. The spillway type for Porter is uncontrolled, with no outlet gates present.
Despite being classified as having a low hazard potential, Porter has a moderate risk assessment rating. The dam has not been rated for its condition assessment, and the last inspection was conducted in January 2019 with a frequency of every 5 years. While there are no associated structures with Porter, it is notable for its location in Rhea County, Tennessee, under the jurisdiction of the Nashville District of the US Army Corps of Engineers. The dam is not regulated by the state and has no state permitting or inspection requirements.
Overall, Porter is a significant water resource in the region, contributing to the management of Yellow Creek's flow and providing storage capacity for water supply and flood control. With its moderate risk assessment rating, it is essential for stakeholders and public officials to monitor and maintain the dam's integrity to ensure the safety of surrounding communities and the environment.
Dam Length |
1300 |
River Or Stream |
YELLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
8 |
Drainage Area |
0.19 |
Nid Storage |
66 |
Structural Height |
10 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sewee Creek Near Decatur
|
66cfs |
Oostanaula Creek Near Sanford
|
46cfs |
Hiwassee River At Charleston
|
10400cfs |
Daddys Creek Near Hebbertsburg
|
138cfs |
Emory River At Oakdale
|
872cfs |
Obed River Near Lancing
|
670cfs |
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.
Porter