Dam Report

Whitworth Lake Dam dam

Arkansas, USA Big Creek-Os Hazard Low
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Tonight low
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Dam height
18ft
Hazard rating
Low
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Whitworth Lake Dam -- None dam
Whitworth Lake Dam None · Big Creek-Os
About this dam

Whitworth Lake Dam

Whitworth Lake Dam, located in Grant County, Arkansas, was completed in 1948 with a primary purpose of recreation. The dam stands at a structural height of 18 feet and has a hydraulic height of 15 feet, providing a storage capacity of 69 acre-feet. While the dam is primarily used for recreation, it also serves as a water supply source for the surrounding area. With its low hazard potential and "Not Rated" condition assessment, Whitworth Lake Dam is a reliable structure that enhances the natural beauty of the Big Creek-OS river and provides valuable water resources for the community.

Situated in the picturesque city of Sheridan, Whitworth Lake Dam offers visitors a tranquil setting for outdoor activities such as fishing, boating, and picnicking. The dam's earth structure spans 1340 feet and is regulated by the Arkansas state jurisdiction. While not currently subject to state inspection or regulation, the dam's maintenance and safety are still closely monitored to ensure its continued functionality and integrity. With its serene surroundings and essential water supply function, Whitworth Lake Dam is a vital resource for both recreational enthusiasts and local residents in Grant County, contributing to the region's overall water management and conservation efforts.

Managed by private owners, Whitworth Lake Dam's strategic location in the Little Rock District underlines its significance as a key water resource in the state of Arkansas. The dam's normal storage capacity of 42 acre-feet and maximum storage of 69 acre-feet make it a valuable asset for water supply and recreational purposes. While the dam's hazard potential is classified as low and its condition assessment remains unrated, ongoing measures are in place to ensure the safety and structural integrity of Whitworth Lake Dam for the benefit of all who rely on its essential services.

StateNone
River / streamBig Creek-Os
NID IDAR00626
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1948
Dam length1,340 ft
Max storage69 AF
Normal storage42 AF
Hazard potentialLow
ConditionNot Rated

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

Track Whitworth 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 Whitworth Lake Dam

Where does the data for Whitworth 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 Low 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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