Upper Bayou Nezpique No 3 Dam, Louisiana, USA

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Quick Facts About Upper Bayou Nezpique No 3 Dam

Location: Evangeline, Louisiana
Coordinates: 30.829, -92.479
River: Tr-Cypress Creek River
Primary Purpose: Flood Risk Reduction
Type: Earth
Commissioned: 1974
Dam Height: 21 ft (6 m)
Dam Length: 2,150 ft (655 m)
Dam Capacity: 5,495 acre-ft (6,778 Ml)

Upper Bayou Nezpique No 3 Dam Map

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Upper Bayou Nezpique No 3 Dam Information

Upper Bayou Nezpique No 3 Dam is an earthen embankment dam located in Pine Prairie, Evangeline, Louisiana.

The dam, which is on the Tr-Cypress Creek River, was primarily built for Flood Risk Reduction purposes, but also serves for Fish and Wildlife Pond and Recreation benefits.

The dam was designed by USDA NRCS and commissioned in 1974 and is currently owned by EVANGELINE PARISH POLICE JURY.

Upper Bayou Nezpique No 3 Dam Structure

The Upper Bayou Nezpique No 3 Dam is approximately 2,150 feet (655 m) long, 21 feet (6 m) high and has a structural volume of 59,335 cubic yards (45,365 cubic metres).

Upper Bayou Nezpique No 3 Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 2,800 acre-ft (3,454 Ml) and maximum capacity of 5,495 acre-ft (6,778 Ml).

The surface area of the reservoir is 700 acres (283 ha) and the total catchment area is 7 square miles (19 square kilometres).

Upper Bayou Nezpique No 3 Dam Spillway

The dam has a 200 feet (61 m) wide uncontrolled spillway with a maximum discharge capacity of 1530 cubic feet per second (43 cubic metres per second).

Upper Bayou Nezpique No 3 Dam Compared to Four Famous American Dams

Upper Bayou Nezpique No 3 Dam
Evangeline, Louisiana
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) 21 730 550 357 216
Length (Ft) 2,150 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 5,495 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 7 167,800 74,100 3,611 108,355

Upper Bayou Nezpique No 3 Dam Weather

Current Conditions at Upper Bayou Nezpique No 3 Dam

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7-Day Forecast for Upper Bayou Nezpique No 3 Dam

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Upper Bayou Nezpique No 3 Dam Frequently Asked Questions

In which state is the Upper Bayou Nezpique No 3 Dam?

Upper Bayou Nezpique No 3 Dam is in Louisiana.

In which county is the Upper Bayou Nezpique No 3 Dam?

Upper Bayou Nezpique No 3 Dam is in Evangeline County.

How high is the Upper Bayou Nezpique No 3 Dam?

Upper Bayou Nezpique No 3 Dam is 21 feet high.

How long is the Upper Bayou Nezpique No 3 Dam?

Upper Bayou Nezpique No 3 Dam is 2,150 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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