Mason Valley Refuge North Pond Dam

Mason Valley Refuge North Pond Dam is an earth dam located in Lyon County, Nevada, built in 1997. It carries a Significant hazard potential classification and has a fair condition assessment.

About Mason Valley Refuge North Pond Dam

The primary purpose of Mason Valley Refuge North Pond 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 Nevada Department Of Wildlife (state). It impounds the Walker River-tr.

The dam stands 16 feet tall and stretches 2,723 feet across, creates a reservoir covering 180 acres, has a maximum storage capacity of 465 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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. An emergency action plan is in place for this dam. The most recent inspection on record was 04/20/2023.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateNevada
CountyLyon
Nearest CityNone
River/StreamWalker River-tr
Coordinates39.11970, -119.09970

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length2,723 ft
Year Completed1997 (29 years old)

Storage & Hydraulics

NID Storage465 acre-ft
Max Storage465 acre-ft
Normal Storage400 acre-ft
Surface Area180 acres
Drainage Area0 sq mi
Max Discharge250 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerNEVADA DEPARTMENT OF WILDLIFE
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection04/20/2023
Emergency Action PlanYes

Identifiers

NID IDNV10314
Federal IDNV10314
More InfoState Dam Safety Program

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