Guayabal Dam, Puerto Rico, USA

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Quick Facts About Guayabal Dam

Location: Villalba, Puerto Rico
Coordinates: 18.08833, -66.50333
River: Jacaguas River
Primary Purpose: Irrigation
Type: Buttress
Commissioned: 1913
Dam Height: 130 ft (40 m)
Dam Length: 1,978 ft (603 m)
Dam Capacity: 7,600 acre-ft (9,374 Ml)

Guayabal Dam Map

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Guayabal Dam Information

Guayabal Dam is a buttress dam located about 2 miles from Juana Diaz, Villalba, Puerto Rico.

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

The dam was designed by AMBURSEN ENGINEERING CO. and commissioned in 1913 and is currently owned by COMMONWEALTH OF PUERTO RICO.

Guayabal Dam Structure

The Guayabal Dam is approximately 1,978 feet (603 m) long, 130 feet (40 m) high and has a structural volume of 44,470 cubic yards (34,000 cubic metres).

Guayabal Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 3,297 acre-ft (4,067 Ml) and maximum capacity of 7,600 acre-ft (9,374 Ml).

The surface area of the reservoir is 373 acres (151 ha) and the total catchment area is 43 square miles (111 square kilometres).

Guayabal Dam Spillway

The dam has a 693 feet (211 m) wide controlled spillway with a maximum discharge capacity of 72744 cubic feet per second (2060 cubic metres per second).

Guayabal Dam Compared to Four Famous American Dams

Guayabal Dam
Villalba, Puerto Rico
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) 130 730 550 357 216
Length (Ft) 1,978 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 7,600 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 43 167,800 74,100 3,611 108,355

Guayabal Dam Weather

Current Conditions at Guayabal Dam

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7-Day Forecast for Guayabal Dam

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Guayabal Dam Frequently Asked Questions

In which state is the Guayabal Dam?

Guayabal Dam is in Puerto Rico.

In which county is the Guayabal Dam?

Guayabal Dam is in Villalba County.

How high is the Guayabal Dam?

Guayabal Dam is 130 feet high.

How long is the Guayabal Dam?

Guayabal Dam is 1,978 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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