Lake No. 7 Dam dam
Lake No. 7 Dam
Lake No. 7 Dam, located in Abernant, Alabama, was completed in 1966 and serves as a vital recreational site in the region. This private-owned dam on TR-Rockcastle Creek stands at 29 feet in structural height and has a hydraulic height of 25 feet, providing a maximum storage capacity of 83 acre-feet of water. Despite not being state-regulated or inspected, the dam is noted for its high hazard potential, highlighting the importance of proper maintenance and emergency preparedness measures.
The dam's primary purpose is for recreation, offering opportunities for boating, fishing, and other water-based activities. With a length of 430 feet, Lake No. 7 Dam provides a serene escape for visitors while also effectively managing water resources in the area. The dam's location within the Congressional District 07 of Alabama underlines its significance as a key infrastructure supporting the local community's water needs and climate resilience efforts.
Although the dam's condition assessment is currently not rated, efforts to ensure its safety and functionality are imperative given its high hazard potential. With a maximum discharge capacity of 300 cubic feet per second, proper risk management and emergency protocols must be in place to safeguard against potential threats and ensure the longevity of Lake No. 7 Dam as a valuable resource for both recreation and water management in Tuscaloosa, Alabama.
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 Lake No. 7 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Valley Creek Near Oak Grove Al | 147 cfs | → |
| Shades Creek Near Greenwood Al | 32 cfs | → |
| Valley Creek Near Bessemer | 45 cfs | → |
| Cahaba River Near West Blocton Al | 349 cfs | → |
| Cahaba River Near Helena Al | 64 cfs | → |
| Cahaba Valley Creek At Cross Cr Rd At Pelham | 9 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake No. 7 Dam.
Boat launches
- County Road 109 13399, Tuscaloosa County
- Deerlick Road Tuscaloosa County
- Lock 15 Road 12701, Tuscaloosa County
- Dickey Camp Road Jefferson County
- Rock Quarry Drive Tuscaloosa
- Terrace Drive Pelham
Campgrounds
- Campground #1
- Campground #2
- Tannehill Ironworks Historical State Park
- Burchfield Branch Park
- Holt Lake
- Deerlick
Fishing spots
Track Lake No. 7 Dam 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 Lake No. 7 Dam
Where does the data for Lake No. 7 Dam 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 Lake No. 7 Dam.