Iroquois #5 Dam

Iroquois #5 Dam is an earth dam located in Orleans County, New York, built in 1970. It carries a Low hazard potential classification and has a fair condition assessment.

About Iroquois #5 Dam

The primary purpose of Iroquois #5 Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Us Fish And Wildlife Service (federal). It impounds the Oak Orchard Creek.

The dam stands 11 feet tall and stretches 1,100 feet across, has a maximum storage capacity of 3,480 acre-feet, and collects water from a drainage area of 139 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/22/2019.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateNew York
CountyOrleans
River/StreamOak Orchard Creek
Coordinates43.15000, -78.40166

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length1,100 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage3,480 acre-ft
Max Storage3,480 acre-ft
Normal Storage1,300 acre-ft
Drainage Area139 sq mi
Max Discharge1,383 cfs

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerUS FISH AND WILDLIFE SERVICE
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection07/22/2019
Emergency Action PlanNot Required

Identifiers

NID IDNY14873
Federal IDNY14873
More InfoState Dam Safety Program

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