Tgm1 dam
Tgm1
Tgm1 is a private recreational dam located in Hamilton County, Florida, near Lake Octahatechee. The dam stands at a height of 21 feet and spans 1055 feet, providing a surface area of 210 acres and a storage capacity of 7749 acre-feet. While the dam's hazard potential is currently undetermined and its condition is not rated, it is subject to state regulation, permitting, inspection, and enforcement to ensure its safety and compliance with regulations.
Owned privately, Tgm1 serves primarily for recreational purposes and is situated in a picturesque location within the city of Jasper. Despite lacking certain information such as the year of completion and details on modifications, the dam remains an essential structure for water resource management and climate enthusiasts in the area. With its proximity to the Jacksonville District and supervision by the state of Florida, Tgm1 offers a unique opportunity for visitors to enjoy water-based activities while also highlighting the importance of responsible dam ownership and maintenance.
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 Tgm1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Withlacoochee River Near Pinetta | 557 cfs | → |
| Alapaha River Near Jennings Fla | 120 cfs | → |
| Alapaha River At Statenville | 80 cfs | → |
| Withlacoochee River Nr Lee | 411 cfs | → |
| Suwannee River At Ellaville | 913 cfs | → |
| Withlacoochee River At Us 84 | 654 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tgm1.
Boat launches
- Madison Highway 6461, Valdosta
- Northeast River Park Road 1307, Lee
- Highway 94, Statenville
- County Road 249, Jasper
- Valdosta Highway, Valdosta
- County Road 250, Live Oak
Campgrounds
Fishing spots
Paddle runs
- State Highway 6 To The Confluence With The Suwannee River
- The Little River Springs At River Mile 81 To The Mouth Of The River At The Gulf Of Mexico
- The Suwannee River Sill At River Mile 238 To The Little River Springs At River Mile 81
- Ichetucknee Headspring To The First Powerline Crossing Over Ichetucknee River
- The First Powerline Crossing The Ichetuckee River To The Confluence With The Santa Fe River, Down The Santa Fe River To The Suwannee River
Track Tgm1 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 Tgm1
Where does the data for Tgm1 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 Undetermined 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 Tgm1.