Dam Report

Ellison Creek Dam dam

Texas, USA Ellison Creek Hazard Not Available
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Dam height
46ft
Hazard rating
Not Available
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Ellison Creek Dam -- None dam
Ellison Creek Dam None · Ellison Creek
About this dam

Ellison Creek Dam

Ellison Creek Dam, nestled in Morris County, Texas, stands as a testament to engineering ingenuity and environmental stewardship. Completed in 1943, this earth dam stretches 5800 feet in length and reaches a height of 49 feet, with a capacity to store up to 36,000 acre-feet of water from the Ellison Creek. The dam serves multiple purposes, including recreation and water resource management, making it a vital cornerstone of the local community.

Managed by private owners and regulated by the Texas Commission on Environmental Quality (TCEQ), Ellison Creek Dam boasts a fair condition assessment as of August 2015, ensuring its structural integrity and safety for surrounding residents. The dam's spillway, with a width of 1800 feet, provides essential flood control measures, while the presence of two uncontrolled outlet gates offers additional hydraulic management capabilities. With a moderate hazard potential rating, the dam has undergone modifications in 1970 and 1999 to enhance its operational efficiency and safety protocols.

As water resource and climate enthusiasts appreciate the significance of Ellison Creek Dam, its role in sustaining the local ecosystem and safeguarding against potential hazards remains paramount. With a rich history of service and a commitment to excellence in dam management, this engineering marvel continues to stand as a symbol of resilience and innovation in water resource infrastructure.

StateNone
River / streamEllison Creek
NID IDTX04010
Owner typePrivate
Primary purposeOther
Dam typeEarth
Year built1943
Dam height46 ft
Dam length5,800 ft
Max storage36,000 AF
Normal storage24,700 AF
Surface area1,516.0 ac
Drainage area37.0 sq mi
Hazard potentialNot Available
ConditionFair
Last inspectionThu, 21 Aug 2014 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Ellison Creek Dam -- inflows here typically show up in storage 24-72 hours later.

Track Ellison Creek 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.

FAQ

About Ellison Creek Dam

Where does the data for Ellison Creek 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.