Dam Report

Lake Overcup Dam dam

Arkansas, USA Overcup Creek Hazard Significant
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Tonight low
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Dam height
26ft
Hazard rating
Significant
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Lake Overcup Dam -- None dam
Lake Overcup Dam None · Overcup Creek
About this dam

Lake Overcup Dam

Lake Overcup Dam, located in Morrilton, Arkansas, is a state-regulated structure on Overcup Creek with a primary purpose of serving as a Fish and Wildlife Pond. Completed in 1963, this earth dam stands at a height of 26 feet and has a hydraulic height of 20 feet, providing a storage capacity of 12,000 acre-feet and covering a surface area of 1,025 acres.

Managed by the Arkansas Natural Resources Commission, Lake Overcup Dam plays a significant role in the conservation of fish and wildlife in the area. With a drainage area of 16.4 square miles, the dam serves as a vital resource for maintaining ecosystems and supporting biodiversity in the region. Despite being deemed as having a significant hazard potential, the dam's condition assessment remains unrated, emphasizing the need for regular inspections and maintenance to ensure its safety and functionality.

The Little Rock District of the US Army Corps of Engineers oversees the operations of Lake Overcup Dam, ensuring that it meets state regulations and inspection standards. As a key component in the management of water resources in Conway County, this dam not only provides essential habitat for fish and wildlife but also serves as a recreational area for outdoor enthusiasts and nature lovers to enjoy. With its picturesque surroundings and important ecological role, Lake Overcup Dam stands as a testament to the intersection of water resource management and climate conservation efforts in Arkansas.

StateNone
River / streamOvercup Creek
NID IDAR00356
Owner typeState
Primary purposeFish And Wildlife Pond
Dam typeEarth
Year built1963
Dam height26 ft
Dam length5,200 ft
Max storage12,000 AF
Normal storage6,000 AF
Surface area1,025.0 ac
Drainage area16.4 sq mi
Hazard potentialSignificant
ConditionNot Rated
Last inspectionWed, 01 Apr 2015 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 Overcup Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lake Overcup Dam in the Snoflo app

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FAQ

About Lake Overcup Dam

Where does the data for Lake Overcup 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 Significant 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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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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