Robert F. Henry Lock And Dam dam
Robert F. Henry Lock And Dam
Robert F. Henry Lock and Dam, located on the Alabama River in Lowndes County, Alabama, is a gravity dam completed in 1974 with a primary purpose of navigation. Standing at a structural height of 110 feet and a hydraulic height of 70 feet, this dam plays a crucial role in managing water levels and ensuring the structural integrity of the surrounding areas. With a storage capacity of 234,200 acre-feet and a maximum discharge of 653,000 cubic feet per second, the dam also serves hydroelectric and recreational purposes.
Managed by the US Army Corps of Engineers, Robert F. Henry Lock and Dam has a significant hazard potential and a very high risk assessment rating. To mitigate flood risks, the Corps continuously monitors the dam's condition, prioritizes risk-reduction activities, and engages with local emergency managers and the public to raise awareness and preparedness for potential emergencies. Regular maintenance and updates to the emergency action plan are key components of the risk management strategy for this critical infrastructure.
As a key feature of the water resource system in the region, Robert F. Henry Lock and Dam underscores the importance of proactive risk management in the face of changing climate conditions and potential severe weather events. With ongoing efforts to ensure the dam's safety and effectiveness, this structure remains a vital component of water resource management in 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 Robert F. Henry Lock And Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mulberry Creek At Jones Al | 110 cfs | → |
| Alabama River Near Montgomery | 7,540 cfs | → |
| Cahaba River Near Marion Junction Al | 749 cfs | → |
| Pine Barren Creek Near Snow Hill | 29 cfs | → |
| Catoma Creek Near Montgomery Al | 7 cfs | → |
| Tallapoosa River Near Mont.-Mont. Water Works | 812 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Robert F. Henry Lock And Dam.
Boat launches
Campgrounds
- Prairie Creek
- Jones Bluff
- Six Mile Creek
- Gunter Hill
- Elm Bluff - William Dannelly Reservoir
- Paul M Grist State Park
Track Robert F. Henry Lock And 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 Robert F. Henry Lock And Dam
Where does the data for Robert F. Henry Lock And 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 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 Robert F. Henry Lock And Dam.