Mckinney dam
Mckinney
Located in Lawrence, Tennessee, Mckinney is a privately owned earth dam on Tribwolf Creek with a hydraulic height of 12.5 feet and a structural height of 40.9 feet. Completed in 1972, the dam has a storage capacity of 135 acre-feet and serves multiple purposes, including flood control and water supply. With a surface area of 6 acres and a drainage area of 0.11 square miles, Mckinney plays a crucial role in managing water resources in the region.
Despite being classified as having a low hazard potential and a moderate risk assessment, Mckinney has not been rated for its condition assessment. The dam lacks a designated emergency action plan, and its last inspection was conducted in May 2020 with a frequency of every 5 years. The dam features an uncontrolled spillway and is not regulated by the state, raising concerns about its overall safety and maintenance protocols. With no outlet gates and no associated structures, Mckinney stands as a solitary structure in the region.
As water resource and climate enthusiasts continue to monitor and advocate for the sustainable management of dams like Mckinney, it is essential to address the gaps in inspection, maintenance, and emergency preparedness to ensure the safety of surrounding communities and the integrity of the water supply. Collaborative efforts between private owners, state agencies, and local stakeholders are vital in safeguarding against potential risks and enhancing the resilience of critical water infrastructure in the face of changing climate conditions.
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 Mckinney -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Shoal Creek At Iron City | 601 cfs | → |
| Cypress Creek Near Florence Al | 251 cfs | → |
| Big Nance Creek At Courtland Al | 21 cfs | → |
| Elk River At Prospect | 3,330 cfs | → |
| Buffalo River Near Flat Woods | 886 cfs | → |
| Horse Creek Near Savannah | 174 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mckinney.
Boat launches
- Lauderdale County 47 Lauderdale County
- Six Pence Road Lauderdale County
- Alloys Park Lane Colbert County
- Florence
- Second Creek Boat Ramp
- Lauderdale County 575 Lauderdale County
Campgrounds
- Joe Wheeler State Park
- David Crockett State Park
- Laurel Hill Lake - Twra
- Colbert Ferry Bicycle Only Campground
Fishing spots
Paddle runs
- The Henryville Bridge Crossing On County Road 6230 To Bethel Bridge On County Road 6174
- Bethel Bridge On County Road 6174 To Confluence With Duck River
More reservoirs
Track Mckinney 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 Mckinney
Where does the data for Mckinney 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 Low 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 Mckinney.