Grundy #1 dam
Grundy #1
Grundy #1, located in Tracy City, Tennessee, is a state-regulated earth dam with a height of 18.6 feet and a hydraulic height of 13.8 feet. Completed in 1934, this dam on Little Fiery Gizzard Creek has a storage capacity of 231 acre-feet and covers a surface area of 14.7 acres. Despite its high hazard potential and poor condition assessment, Grundy #1 is inspected annually by the Tennessee Safe Dams Program to ensure its structural integrity and public safety.
With a drainage area of 1.01 square miles, Grundy #1 poses a moderate risk, but the lack of emergency action plans and inundation maps raises concerns about its preparedness for potential disasters. While the dam is currently in need of maintenance and improvements, its critical role in water resource management underscores the importance of ongoing monitoring and risk assessment. As climate change continues to impact water resources, ensuring the safety and resilience of Grundy #1 is essential for protecting both the environment and surrounding communities.
As enthusiasts of water resources and climate resilience, it is crucial to advocate for the proper maintenance and management of dams like Grundy #1 to mitigate risks and adapt to changing environmental conditions. By supporting initiatives that prioritize dam safety and emergency preparedness, we can help safeguard our water infrastructure and ensure the sustainable management of our natural 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 #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Elk River Near Pelham | 31 cfs | → |
| Sequatchie River Near Whitwell | 152 cfs | → |
| Bradley Creek Nr Prairie Plains | 33 cfs | → |
| Duck River Below Manchester | 41 cfs | → |
| North Chickamauga Creek Near Montlake | 0 cfs | → |
| North Chickamauga Cr At Mile Straight | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grundy #1.
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 #1 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 #1
Where does the data for Grundy #1 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.