Usac N4n dam
Usac N4n
Usac N4n, also known as N8 Usac, is a private water resource located in Fort Meade, Florida, specifically on McCullough Creek. This dam, completed in 1985, serves primarily for tailings purposes and is categorized as an Earth dam made with Stone core and Soil foundation. It stands at a height of 15 feet with a hydraulic height of 10 feet and a structural height of 17 feet, stretching over a length of 5275 feet and storing a maximum of 2200 acre-feet of water.
Managed by the Jacksonville District of the US Army Corps of Engineers, Usac N4n has a low hazard potential and is not currently rated for its condition. Despite its low hazard potential, the risk assessment rates it as very high, underscoring the importance of regular inspections and maintenance. The dam features a controlled spillway with a width of 5 feet, capable of discharging a maximum of 3 cubic feet per second. Although the last inspection was conducted in January 2006, the dam has not been given a condition assessment date, highlighting the need for ongoing monitoring and risk management measures to ensure its safety and integrity in the face of potential climate challenges.
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 Usac N4n -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Peace River Near Homeland Fl | 1 cfs | → |
| Peace River At Fort Meade Fl | 3 cfs | → |
| Barber Branch Near Homeland Fl | 1 cfs | → |
| Whidden Creek Near Fort Meade Fl | 7 cfs | → |
| Sixmile Creek At Bartow Fl | 2 cfs | → |
| Peace River At Clear Springs Near Bartow Fl | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Usac N4n.
Boat launches
- Doc Lindsey Road 2215-2837, Fort Meade
- Highlands By The Lake Way 3184, Lakeland
- East Eagle Avenue 942, Eagle Lake
- West Eagle Avenue, Eagle Lake
- Griffin Road 676, Wauchula
- Lake Shipp Drive 1605-1699, Winter Haven
Campgrounds
- Alafia River State Park
- Alderman's Ford Park Campsite 4
- Alderman's Ford Park Campsite 3
- Alderman's Ford Park Campsite 1
- Alderman's Ford Park Campsite 2
- Saddle Creek County Park
Fishing spots
Paddle runs
- County Road 780 Bridge To State Road 72 Bridge
- Begins Downstream Of The State Road 72 Bridge To The Southern Boundary Of Myakka River State Park
- The Southern Boundary Of The Myakka River State Park To Ends Approximately At River Mile 23 Where Riverfront Residential Development Begins
- Approximately At River Mile 23 Where Riverfront Residential Development Begins To The Vicinity Of Snook Haven Fish Camp At Approximately River Mile 18
- Approximately River Mile 18 To A Point Just Upriver Of The Us 41 Highway Crossing
Track Usac N4n 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 Usac N4n
Where does the data for Usac N4n 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 Usac N4n.