Dam Report

Degray Dam dam

Arkansas, USA Caddo River Hazard High
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Dam height
98ft
Hazard rating
High
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Degray Dam -- None dam
Degray Dam None · Caddo River
About this dam

Degray Dam

Degray Dam, also known as Degray Lake, is a federal-owned structure located in Clark County, Arkansas. Completed in 1969 by the US Army Corps of Engineers, the primary purpose of this earth dam is flood risk reduction, with additional functions including hydroelectric power generation, recreation, and water supply. The dam stands at a structural height of 98 feet and stretches 13,200 feet in length, creating a reservoir with a storage capacity of 1,377,100 acre-feet.

Managed and funded by the US Army Corps of Engineers, Degray Dam poses a high hazard potential due to its location along the Caddo River. To mitigate flood risks, the Corps employs various risk management measures, such as ongoing monitoring, maintenance, and emergency action planning. While the dam has limited water storage capacity and may release water during severe weather events to maintain structural integrity, the Corps collaborates with local emergency managers to ensure preparedness and public safety in the event of a dam-related emergency. More detailed information on specific risk factors and management strategies for Degray Dam will be provided in the future.

StateNone
River / streamCaddo River
NID IDAR00151
Owner typeFederal
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1969
Dam length13,200 ft
Max storage1,377,100 AF
Normal storage654,700 AF
Surface area13,400.0 ac
Drainage area453.0 sq mi
Hazard potentialHigh
ConditionNot Available
Last inspectionWed, 22 Jul 2020 00:00:00 GMT
EAP preparedYes

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 Degray Dam -- inflows here typically show up in storage 24-72 hours later.

Track Degray 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 Degray Dam

Where does the data for Degray 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 High 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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Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Degray Dam.

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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