Allison Lake Dam dam
Allison Lake Dam
Allison Lake Dam, located in Tyler, Texas, was completed in 1965 and stands at a height of 15 feet with a length of 800 feet. This earth dam, primarily used for recreation purposes, has a storage capacity of 120 acre-feet and covers a surface area of 20 acres. Situated on the Sevenmile Branch river, the dam is owned by a private entity and is not regulated by the state. Despite its age, the dam's condition is currently not rated, and its hazard potential is listed as "Not Available."
With a high risk assessment rating of 2, Allison Lake Dam poses potential concerns for water resource and climate enthusiasts. The dam lacks a spillway and has only one outlet gate, raising questions about its ability to handle maximum discharge effectively. The dam's foundation type and structural design are listed as "Unlisted/Unknown" and "Buttress," respectively, indicating potential vulnerabilities that may require further assessment. Given its age and the lack of recent inspection data, there may be a need for increased monitoring and maintenance to ensure the dam's safety and integrity in the face of changing climate conditions.
As a private-owned structure with limited state oversight, Allison Lake Dam highlights the importance of proactive risk management and emergency preparedness in safeguarding water resources and downstream communities. Climate change impacts, such as increased precipitation and extreme weather events, could pose additional challenges for the dam's resilience. Engaging with local stakeholders, enhancing inspection protocols, and implementing risk reduction measures are critical steps to address the potential hazards associated with this dam and ensure the long-term sustainability of water resources in the region.
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 Allison Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Neches Rv Nr Town Bluff | 4,390 cfs | → |
| Neches Rv Nr Rockland | 1,370 cfs | → |
| Village Ck Nr Kountze | 1,210 cfs | → |
| Neches Rv At Evadale | 4,880 cfs | → |
| Big Cow Ck Nr Newton | 62 cfs | → |
| Menard Ck Nr Rye | 59 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Allison Lake Dam.
Boat launches
- Jasper County
- Tyler County
- Sandy Creek Public Boat Ramp
- Fm 418 Boat Ramp
- Baby Galvez Landing
- Us 96 Hardin County
Campgrounds
- B.A. Steinhagen Lake Campground
- Campers Cove - Town Bluff Reservoir
- Magnolia Ridge - Town Bluff Reservoir
- Martin Dies State Park
- Martin Dies Junior State Park
- Sandy Creek - Town Bluff Reservoir
Fishing spots
Paddle runs
- Town Bluff Dam To Hwy 96 Bridge
- Preserve Boundary In The Big Sandy Unit To Confluence With Big Sandy Creek
- Us Highway 69 To Ba Steinhagen Reservoir
- Confluence With Big Sandy Creek To Confluence With The Neches River
- Us Highway 59 To Us Highway 69
- Preserve Boundary Of The Big Sandy Unit To Confluence With Village Creek
Track Allison Lake 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 Allison Lake Dam
Where does the data for Allison Lake 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 Not Available 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 Allison Lake Dam.