Lake Jb Thomas Dam, Texas, USA

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Quick Facts About Lake Jb Thomas Dam

Location: Scurry, Texas
Coordinates: 32.58333, -101.135
River: Colorado River
Primary Purpose: Water Supply
Type: Earth
Commissioned: 1952
Dam Height: 105 ft (32 m)
Dam Length: 9,200 ft (2,804 m)
Dam Capacity: 430,600 acre-ft (531,136 Ml)

Lake Jb Thomas Dam Map

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Lake Jb Thomas Dam Information

Lake Jb Thomas Dam is an earthen embankment dam located about 50 miles from Colorado City, Scurry, Texas.

The dam, which is on the Colorado River, was primarily built for Water Supply purposes, but also serves for Recreation benefits.

The dam was designed by FREESE AND NICHOLS;FREESE AND NICHOLS and commissioned in 1952 and is currently owned by COLORADO RIVER MUNICIPAL WATER DISTRICT.

Lake Jb Thomas Dam Structure

The Lake Jb Thomas Dam is approximately 9,200 feet (2,804 m) long, 105 feet (32 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Lake Jb Thomas Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 200,604 acre-ft (247,441 Ml) and maximum capacity of 430,600 acre-ft (531,136 Ml).

The surface area of the reservoir is 7,820 acres (3,165 ha) and the total catchment area is 997 square miles (2,582 square kilometres).

Lake Jb Thomas Dam Spillway

The dam has a 1833.5 feet (559 m) wide uncontrolled spillway with a maximum discharge capacity of 161002 cubic feet per second (4559 cubic metres per second).

Lake Jb Thomas Dam Compared to Four Famous American Dams

Lake Jb Thomas Dam
Scurry, 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) 105 730 550 357 216
Length (Ft) 9,200 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 430,600 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 997 167,800 74,100 3,611 108,355

Lake Jb Thomas Dam Weather

Current Conditions at Lake Jb Thomas Dam

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7-Day Forecast for Lake Jb Thomas Dam

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Lake Jb Thomas Dam Frequently Asked Questions

In which state is the Lake Jb Thomas Dam?

Lake Jb Thomas Dam is in Texas.

In which county is the Lake Jb Thomas Dam?

Lake Jb Thomas Dam is in Scurry County.

How high is the Lake Jb Thomas Dam?

Lake Jb Thomas Dam is 105 feet high.

How long is the Lake Jb Thomas Dam?

Lake Jb Thomas Dam is 9,200 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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