Leona River WS SCS Site 1 Dam, Texas, USA

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Quick Facts About Leona River WS SCS Site 1 Dam

Location: Uvalde, Texas
Coordinates: 29.27, -99.83333
River: Cooks Slough River
Primary Purpose: Flood Risk Reduction
Type: Earth Rockfill
Commissioned: 1986
Dam Height: 28 ft (9 m)
Dam Length: 7,860 ft (2,396 m)
Dam Capacity: 6,238 acre-ft (7,694 Ml)

Leona River WS SCS Site 1 Dam Map

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Leona River WS SCS Site 1 Dam Information

Leona River WS SCS Site 1 Dam is an earth rockfill dam located in Uvalde County, Texas.

The dam, which is on the Cooks Slough River, was primarily built for Flood Risk Reduction purposes, but also serves for benefits.

The dam was designed by USDA NRCS and commissioned in 1986 and is currently owned by EDWARDS AQUIFER AUTHORITY;NUECES FRIO SABINAL SWCD;UVALDE COUNTY.

Leona River WS SCS Site 1 Dam Structure

The Leona River WS SCS Site 1 Dam is approximately 7,860 feet (2,396 m) long, 28 feet (9 m) high and has a structural volume of 318,020 cubic yards (243,144 cubic metres).

Leona River WS SCS Site 1 Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 219 acre-ft (270 Ml) and maximum capacity of 6,238 acre-ft (7,694 Ml).

The surface area of the reservoir is 45 acres (18 ha) and the total catchment area is 8 square miles (20 square kilometres).

Leona River WS SCS Site 1 Dam Spillway

The dam has a 203 feet (62 m) wide uncontrolled spillway with a maximum discharge capacity of 11979 cubic feet per second (339 cubic metres per second).

Leona River WS SCS Site 1 Dam Compared to Four Famous American Dams

Leona River WS SCS Site 1 Dam
Uvalde, Texas
Hoover Dam
Clark County, Nevada
Grand Coulee Dam
Okanogan County, Washington
Theodore Roosevelt Dam
Maricopa County, Arizona
Glen Canyon Dam
Coconino County, Arizona
Height (ft) 28 730 550 357 216
Length (Ft) 7,860 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 6,238 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 8 167,800 74,100 3,611 108,355

Leona River WS SCS Site 1 Dam Weather

Current Conditions at Leona River WS SCS Site 1 Dam

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7-Day Forecast for Leona River WS SCS Site 1 Dam

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Leona River WS SCS Site 1 Dam Frequently Asked Questions

In which state is the Leona River WS SCS Site 1 Dam?

Leona River WS SCS Site 1 Dam is in Texas.

In which county is the Leona River WS SCS Site 1 Dam?

Leona River WS SCS Site 1 Dam is in Uvalde County.

How high is the Leona River WS SCS Site 1 Dam?

Leona River WS SCS Site 1 Dam is 28 feet high.

How long is the Leona River WS SCS Site 1 Dam?

Leona River WS SCS Site 1 Dam is 7,860 feet long.

Condition Assessment Classification

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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum

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. Investigations and studies are necessary.

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.

Not Available

Dams for which the condition assessment is restricted to approved government users.

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, environment 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.

Not Available

Dams for which the downstream hazard potential is restricted to approved government users.

Source: National Inventory of Dams

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