Moss Dam dam
Moss Dam
Moss Dam is a private earth dam located in Jackson, Florida, along the TR-Econfina River. 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.
Dam data reference
Condition Assessment
- Satisfactory
- No 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.
- 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.
- 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.
Hazard Potential Classification
- High
- Dams 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, environmental 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.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Moss Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chipola River Nr Altha | 1,110 cfs | → |
| Chipola River At Marianna Fl | 997 cfs | → |
| Econfina Creek Near Bennett | 390 cfs | → |
| Holmes Creek At Vernon | 752 cfs | → |
| Apalachicola River Nr Blountstown | 8,990 cfs | → |
| Telogia Creek Nr Bristol | 82 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Moss Dam.
Boat launches
- City Square Road Jackson County
- Peacock Bridge Road 5207-5229, Marianna
- Calhoun County
- Washington Boulevard, Chipley
- Thomas Road, Chipley
- Gap Boulevard 1950, Chipley
Campgrounds
- Alliance Hill Rv Resort
- Falling Waters State Park
- Florida Caverns State Park
- Rock Bluff Primitive Camp
- Torreya State Park
- Rock Creek Primitive Camp
Fishing spots
Paddle runs
- Segment B--Sh 65 To Carr Bridge On Fh 13
- 2 Miles Below Dam On Lake Talquin To Ochlockonee Bay
- Segment C--Mud Swamp/New River Wilderness Boundary To Mud Swamp/New River Wilderness (Southern) Boundary
- Headwaters To Concrete Bridge (Burnt Bridge) On Fh 13 (Where River Enters Bradwell Ray Wilderness)
Track Moss Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Moss Dam
Where does the data for Moss Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Moss Dam.