Grundy #2 dam
Grundy #2
Grundy #2 is a state-regulated dam located in Tracy City, Tennessee, along the Little Fiery Gizzard Creek. Built in 1935, this earth dam stands at a structural height of 40.2 feet and has a hydraulic height of 33.3 feet. With a storage capacity of 105 acre-feet, it serves the primary purpose of water resource management in the region. Despite being categorized as having a high hazard potential, the dam's condition assessment as of August 2020 was reported as satisfactory.
Managed by the Tennessee Safe Dams Program, Grundy #2 undergoes regular inspections to ensure its structural integrity and public safety. The dam has a spillway type of "Uncontrolled" and no outlet gates, making it essential for effective water flow management during periods of high discharge. With a moderate risk assessment rating of 3, the dam's risk management measures and emergency action plans play a crucial role in mitigating potential hazards and ensuring proper response protocols in case of emergencies.
For water resource and climate enthusiasts, Grundy #2 presents a fascinating case study in dam infrastructure in the Nashville District. Its historical significance, structural specifications, and risk assessment provide valuable insights into the ongoing efforts to balance water management needs with public safety considerations in the region. As a state-regulated dam with a satisfactory condition assessment, Grundy #2 underscores the importance of proactive monitoring and maintenance to safeguard critical water resources for future generations.
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 Grundy #2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Patuxent River Near Unity | 15 cfs | → |
| Cattail Creek Near Glenwood | 16 cfs | → |
| Hawlings River Near Sandy Spring | 17 cfs | → |
| Patuxent River Below Brighton Dam Near Brighton | 14 cfs | → |
| Nw Branch Anacostia River Near Colesville | 126 cfs | → |
| Little Patuxent River At Guilford | 122 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grundy #2.
Boat launches
- Prairie Plains Road 6471, Hillsboro
- Bennett Lake Road 257-463, Whitwell
- Interstate 24, Jasper
- Hales Bar Road 950, Guild
- Morris Ferry Dock Road 66-98, Estill Springs
- Manchester Beach Road, Tullahoma
Campgrounds
Fishing spots
- Coon Creek
- Bowman Branch
- Fayetteville Old Stone Bridge
- Madison County Lake
- Desoto State Park Lake
- Guntersville Lake
Paddle runs
- Desoto Falls In Desoto State Park To Confluence With Little River
- River Miles 8 Near Ga Sate Line To Confluence With Little River
More reservoirs
Track Grundy #2 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 Grundy #2
Where does the data for Grundy #2 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 High 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 Grundy #2.