Summary
Built in 1990, this dam stands at a structural height of 32 feet and has a length of 550 feet, providing a storage capacity of 122 acre-feet. Despite its uncontrolled spillway type, Shell Branch has been deemed to have a low hazard potential and is currently in satisfactory condition according to its last inspection in July 2020.
Managed by the Tennessee Safe Dams Program, Shell Branch is subject to regular state inspections, permitting, and enforcement to ensure its safety and compliance with regulations. Although it has a moderate risk assessment rating, the dam has not required any major modifications or emergency action plans as of the latest data update in March 2021. With its location in a picturesque natural setting and its critical role in water resource management, Shell Branch is a noteworthy site for water resource and climate enthusiasts interested in the intersection of infrastructure and environmental conservation.
Year Completed |
1990 |
Dam Length |
550 |
River Or Stream |
TRIBNORTH FORK OBION RIV |
Primary Dam Type |
Earth |
Drainage Area |
0.48 |
Nid Storage |
122 |
Structural Height |
32 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Clarks River At Murray
|
15cfs |
Clarks River At Almo
|
38cfs |
Crooked Creek Near Huntingdon
|
38cfs |
North Fork Obion River Near Martin
|
202cfs |
Big Sandy River At Bruceton
|
118cfs |
South Fork Obion River Near Greenfield
|
184cfs |
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.
Shell Branch