Moss Dam Reservoir Report
Nearby: Morris Dam Daniel Dam
Last Updated: December 5, 2025
Moss Dam is a private earth dam located in Jackson, Florida, along the TR-Econfina River.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1968 by the USDA NRCS, this dam primarily serves the purpose of irrigation for agricultural activities. With a height of 22 feet and a length of 560 feet, Moss Dam has a storage capacity of 180 acre-feet and covers a surface area of 8 acres. The dam is regulated by the NWFWMD and meets state permitting, inspection, and enforcement requirements.
Despite being classified as having a low hazard potential and not currently rated for its condition, Moss Dam poses a moderate risk according to a risk assessment. The dam features an uncontrolled spillway and outlet gates, with a spillway width of 120 feet. While it has not been modified in recent years, the last inspection conducted was in 1994. Although the dam has not been assigned a Dam Safety Action Classification (DSAC) date, it is important to ensure that risk management measures are in place to handle any potential emergencies.
For water resource and climate enthusiasts, Moss Dam presents an interesting case study in dam infrastructure and management. Its location along the TR-Econfina River and its role in providing irrigation for agricultural activities highlight the importance of maintaining and monitoring such structures. With a history dating back to 1968, Moss Dam serves as a reminder of the ongoing need for proper regulation and inspection to ensure the safety and reliability of our water resources in the face of changing environmental conditions.
Year Completed |
1968 |
Dam Length |
560 |
Dam Height |
22 |
River Or Stream |
TR-ECONFINA RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
0.62 |
Nid Storage |
180 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chipola River Nr Altha
|
600cfs |
Chipola River At Marianna Fl
|
212cfs |
Econfina Creek Near Bennett
|
508cfs |
Holmes Creek At Vernon
|
346cfs |
Apalachicola River Nr Blountstown
|
9250cfs |
Telogia Creek Nr Bristol
|
82cfs |
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.
Moss Dam
City Square Road Jackson County