Portugues Dam, Puerto Rico, USA

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Quick Facts About Portugues Dam

Location: Ponce, Puerto Rico
Coordinates: 18.062, -66.633003
River: Portugues River
Primary Purpose: Flood Risk Reduction
Type: Concrete Arch Gravity
Commissioned: 2015
Dam Height: 220 ft (67 m)
Dam Length: 1,230 ft (375 m)
Dam Capacity: 46,000 acre-ft (56,740 Ml)
Condition Assessment: Satisfactory

Portugues Dam Map

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Portugues Dam Information

Portugues Dam is a concrete arch gravity dam located about 3 miles from Ponce, Ponce, Puerto Rico.

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

The dam was designed by CORPS OF ENGINEERS, JACKSONVILLE DISTRICT and commissioned in 2015 and is currently owned by NATURAL RESOURCES AND ENVIRONMENTAL DEPT..

Portugues Dam Structure

The Portugues Dam is approximately 1,230 feet (375 m) long, 220 feet (67 m) high and has a structural volume of 367,000 cubic yards (280,592 cubic metres).

Portugues Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 2,840 acre-ft (3,503 Ml) and maximum capacity of 46,000 acre-ft (56,740 Ml).

The surface area of the reservoir is 71 acres (29 ha) and the total catchment area is 11 square miles (27 square kilometres).

Portugues Dam Spillway

The dam has a 140 feet (43 m) wide uncontrolled spillway with a maximum discharge capacity of 46000 cubic feet per second (1303 cubic metres per second).

Portugues Dam Compared to Four Famous American Dams

Portugues Dam
Ponce, 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) 220 730 550 357 216
Length (Ft) 1,230 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 46,000 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 11 167,800 74,100 3,611 108,355

Portugues Dam Weather

Current Conditions at Portugues Dam

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7-Day Forecast for Portugues Dam

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Portugues Dam Frequently Asked Questions

In which state is the Portugues Dam?

Portugues Dam is in Puerto Rico.

In which county is the Portugues Dam?

Portugues Dam is in Ponce County.

How high is the Portugues Dam?

Portugues Dam is 220 feet high.

How long is the Portugues Dam?

Portugues Dam is 1,230 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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