Mcminnville Water Supply dam
Mcminnville Water Supply
Mcminnville Water Supply, located in Marshall, Tennessee, is a crucial water resource managed by the local government for the primary purpose of water supply. This concrete dam on the Barren Fork River stands at 17.7 feet high and was completed in 1900, providing a storage capacity of 623 acre-feet. The dam's significant hazard potential is mitigated by regular inspections, with the most recent assessment in August 2019 deeming its condition satisfactory.
Managed by the Tennessee Safe Dams Program, the Mcminnville Water Supply dam is regulated, permitted, and inspected by state authorities to ensure its structural integrity and operational safety. Despite being uncontrolled, the spillway of the dam helps manage water flow during periods of excess discharge. With a moderate risk assessment rating, the dam is monitored for any potential hazards, and risk management measures are in place to address any issues that may arise in the future. For water resource and climate enthusiasts, the Mcminnville Water Supply serves as a vital infrastructure supporting the community's water needs while adhering to strict regulatory standards for safety and efficiency.
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 Mcminnville Water Supply -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Duck River Above Milltown | 994 cfs | → |
| Big Rock Cr At Double Bridges | 3 cfs | → |
| Fountain Creek Near Fountain Heights | 3 cfs | → |
| Duck River At Columbia | 2,530 cfs | → |
| Fall Creek Near Deason | 0 cfs | → |
| Harpeth River At Franklin | 290 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mcminnville Water Supply.
Boat launches
- Lillard's Mill Launch Area
- Carpenter Bridge Road 2308, Columbia
- Sowell Mill Pike 3181-3183, Columbia
- Howards Bridge Boat Access
- Iron Bridge Road 918, Columbia
- Riverside Drive 302, Columbia
Campgrounds
- Campers Rv Park
- Henry Horton State Park
- Tennessee Highway 50 Bicycle-Only Campground, At Milepost 408
- Poole Knobs - J. Percy Priest Reservoir
Paddle runs
Track Mcminnville Water Supply 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 Mcminnville Water Supply
Where does the data for Mcminnville Water Supply 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 Significant 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 Mcminnville Water Supply.