Dam Report

East Lake Dam dam

Texas, USA Tr-Magnus Branch Hazard Not Available
Today high
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Tonight low
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Dam height
22ft
Hazard rating
Not Available
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East Lake Dam -- None dam
East Lake Dam None · Tr-Magnus Branch
About this dam

East Lake Dam

East Lake Dam, located in Hillister, Texas, is a private earth dam that was completed in 1949 for irrigation purposes. The dam stands at 22 feet high and spans 770 feet in length, with a maximum storage capacity of 327 acre-feet. It serves the surrounding area by providing water for irrigation, recreation, and general water supply needs.

Despite being rebuilt by the owner after a breach in 1996, East Lake Dam is not regulated by the state and has no current hazard potential rating. The spillway, which is uncontrolled, has a width of 164 feet and a maximum discharge capacity of 3,885 cubic feet per second. The dam is situated on the TR-Magnus Branch river and has a drainage area of 3.01 square miles.

East Lake Dam presents a moderate risk level according to risk assessment, but its condition assessment is currently not rated. The emergency action plan for the dam was last revised in 2011, and the dam has two uncontrolled outlet gates. With its rich history and importance for water resource management in the region, East Lake Dam continues to be a significant feature for water resource and climate enthusiasts to study and appreciate.

StateNone
River / streamTr-Magnus Branch
NID IDTX03754
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1949
Dam height22 ft
Dam length770 ft
Max storage327 AF
Normal storage129 AF
Surface area19.0 ac
Drainage area3.0 sq mi
Hazard potentialNot Available
ConditionNot Rated
Last inspectionWed, 30 Sep 2009 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 East Lake Dam -- inflows here typically show up in storage 24-72 hours later.

StreamgaugeDischargeView
Neches Rv Nr Town Bluff 3,350 cfs
Neches Rv Nr Rockland 2,420 cfs
Village Ck Nr Kountze 1,260 cfs
Menard Ck Nr Rye 54 cfs
Neches Rv At Evadale 4,770 cfs
Trinity Rv At Romayor 8,140 cfs

Track East 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.

FAQ

About East Lake Dam

Where does the data for East 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.

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