Mcnairycypress Creek #9 dam
Mcnairycypress Creek #9
Mcnairy-Cypress Creek #9, also known as Mcnairy Cypress Creek W/S Dam 15, is a local government-owned earth dam located in Bethel Springs, Tennessee. This dam, designed by the USDA NRCS and Dan McGill of Owem Ayres Associates, serves the primary purpose of flood risk reduction along the Cypress Creek. Completed in 1985, the dam has a structural height of 30 feet and a length of 1325 feet, with a storage capacity of 6119 acre-feet and a drainage area of 9.14 square miles.
Managed by the Tennessee Safe Dams Program, Mcnairy-Cypress Creek #9 has a high hazard potential but is currently in satisfactory condition. The dam's spillway type is uncontrolled, with no outlet gates, and it has a moderate risk assessment rating. Despite its high hazard potential, the dam is regularly inspected by state regulators, with the last assessment conducted in April 2020. With a focus on flood risk reduction, this dam plays a crucial role in protecting the surrounding area from potential flooding events.
Located within the Nashville District and under the jurisdiction of the Tennessee state regulatory agency, Mcnairy-Cypress Creek #9 is an essential structure for water resource management in the region. With its significant storage capacity and strategic location along the Cypress Creek, this dam serves as a vital defense against potential flood risks, highlighting the importance of effective dam infrastructure in mitigating climate-related 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 Mcnairycypress Creek #9 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Horse Creek Near Savannah | 56 cfs | → |
| Hatchie River At Bolivar | 911 cfs | → |
| Hatchie River Near Walnut | 86 cfs | → |
| Middle Fork Forked Deer River Near Fairview | 75 cfs | → |
| Wolf River At Lagrange | 111 cfs | → |
| Buffalo River Near Flat Woods | 265 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mcnairycypress Creek #9.
Boat launches
- White Oak Wildlife Road, Sardis
- Highway 57 23970-23972, Pocahontas
- Tennessee River Lane 475, Savannah
- Main Street 499, Saltillo
- Wharf Road, Savannah
- Branun Cemetery Road, Savannah
Campgrounds
- Chickasaw State Park - Tent
- Big Hill Pond State Park Campground
- Big Hill Pond Sp - Grassy Point Shelter
- Pickwick Dam - Tva
- Pickwick Landing Sp - Trail Camps
Paddle runs
Track Mcnairycypress Creek #9 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 Mcnairycypress Creek #9
Where does the data for Mcnairycypress Creek #9 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 Mcnairycypress Creek #9.