Coconino

Coconino is an earth dam located in Coconino County, Arizona, built in 1954. It carries a Low hazard potential classification.

About Coconino

The primary purpose of Coconino 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 Arizona Game & Fish Department (state). It impounds the Ashurst Run near Sunrise.

The dam stands 39 feet tall and stretches 707 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 361 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1954, 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. The most recent inspection on record was 08/30/2018.

At 39 feet, this dam is taller than 86% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateArizona
CountyCoconino
Nearest CitySunrise
River/StreamAshurst Run
Coordinates35.00500, -111.38889

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height30 ft
Dam Length707 ft
Year Completed1954 (72 years old)

Storage & Hydraulics

NID Storage361 acre-ft
Max Storage361 acre-ft
Normal Storage255 acre-ft
Surface Area30 acres
Drainage Area12 sq mi
Max Discharge2,860 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerARIZONA GAME & FISH DEPARTMENT
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection08/30/2018
Emergency Action PlanNot Required

Identifiers

NID IDAZ00045
Federal IDAZ00045
More InfoState Dam Safety Program

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