Dam Report

Lake Graham Dam dam

Texas, USA Little Cottonwood Creek Hazard Not Available
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Tonight low
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Dam height
63ft
Hazard rating
Not Available
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Lake Graham Dam -- None dam
Lake Graham Dam None · Little Cottonwood Creek
About this dam

Lake Graham Dam

Lake Graham Dam, also known as Graham Lake, is a private-owned structure located in Briscoe County, Texas. Built in 1963 by the USDA NRCS, this earth dam stands at a height of 63 feet and spans 2900 feet across Little Cottonwood Creek. Its primary purpose is irrigation, serving as a vital resource for the surrounding agricultural community.

With a storage capacity of 1250 acre-feet, Lake Graham Dam plays a crucial role in managing water resources in the area. The dam features an uncontrolled spillway with a width of 500 feet, capable of handling a maximum discharge of 4000 cubic feet per second. Despite being last inspected in 1977, the dam's hazard potential is deemed not available, with a moderate risk assessment score of 3.

While the dam's condition assessment is not rated, its role in supporting irrigation needs and water management in the region highlights its importance as a key infrastructure for sustainable agricultural practices. The dam's association with the Natural Resources Conservation Service underscores its commitment to environmental conservation and water resource management. Lake Graham Dam stands as a testament to the intersection of water resource management, climate resilience, and agricultural sustainability in Texas.

StateNone
River / streamLittle Cottonwood Creek
NID IDTX02534
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1963
Dam height63 ft
Dam length2,900 ft
Max storage1,250 AF
Normal storage1,080 AF
Drainage area9.0 sq mi
Hazard potentialNot Available
ConditionNot Rated
Last inspectionThu, 21 Jul 1977 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 Lake Graham Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lake Graham 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 Lake Graham Dam

Where does the data for Lake Graham 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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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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