Canyon Lake Dam

Canyon Lake Dam Quick Facts

Location: Comal, Texas
Coordinates: 29.869173, -98.1976216
River: Guadalupe River
Primary Purpose: Flood Risk Reduction
Type: Earth
Commissioned: 1964
Dam Height: 224 ft (68 m)
Dam Length: 210 ft (64 m)
Dam Capacity: 1,208,350 acre-ft (1,490,476 Ml)
Condition Assessment: Not Available
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Canyon Lake Dam Map

Canyon Lake Dam Information

Canyon Lake Dam is an earthen embankment dam located in New Braunfels, Comal, Texas.

The dam, which is on the Guadalupe River, was primarily built for Flood Risk Reduction purposes, but also serves for Fish and Wildlife Pond, Recreation, Hydroelectric and Water Supply benefits.

The dam was designed by CESWF and commissioned in 1964 and is currently owned by USACE – Fort Worth District.

Canyon Lake Dam Structure

The Canyon Lake Dam is approximately 210 feet (64 m) long, 224 feet (68 m) high and has a structural volume of 11,430,050 cubic yards (8,738,902 cubic metres).

Canyon Lake Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 378,900 acre-ft (467,366 Ml) and maximum capacity of 1,208,350 acre-ft (1,490,476 Ml).

The surface area of the reservoir is 8,308 acres (3,362 ha) and the total catchment area is 1,425 square miles (3,691 square kilometres).

Canyon Lake Dam Spillway

The dam has a 1260 feet (384 m) wide uncontrolled spillway with a maximum discharge capacity of 502800 cubic feet per second (14238 cubic metres per second).

Canyon Lake Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Canyon Lake Dam
Comal, Texas
Height (ft)
224
Length (Ft)
210
Storage Volume (acre-ft)
1,208,350
Drainage Area (sq miles)
1,425
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Canyon Lake Dam Weather

Current Conditions at Canyon Lake Dam

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7-Day Forecast for Canyon Lake Dam

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Canyon Lake Dam Frequently Asked Questions

In which state is the Canyon Lake Dam?

Canyon Lake Dam is in Texas.

In which county is the Canyon Lake Dam?

Canyon Lake Dam is in Comal County.

How high is the Canyon Lake Dam?

Canyon Lake Dam is 224 feet high.

How long is the Canyon Lake Dam?

Canyon Lake Dam is 210 feet long.

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More Dams in Comal County:

Canyon Lake Dam
Comal River WS SCS Site 1 Dam
Comal River WS SCS Site 2 Dam
Comal River WS SCS Site 3 Dam
Comal River WS SCS Site 4 Dam

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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