Beaver Park East

Beaver Park East is an earth dam located in Boulder County, Colorado, built in 1892. It carries a Low hazard potential classification.

About Beaver Park East

The primary purpose of Beaver Park East 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 St. Vrain Reservoir And Fish Company (dan Grant, S (private). It impounds the South St. Vrain Creek-tr near Lyons.

The dam stands 10 feet tall and stretches 300 feet across, creates a reservoir covering 105 acres, has a maximum storage capacity of 2,731 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1892, the structure is over a century 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 08/18/2020.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyBoulder
Nearest CityLyons
River/StreamSouth St. Vrain Creek-tr
Coordinates40.11702, -105.51663

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length300 ft
Year Completed1892 (134 years old)

Storage & Hydraulics

NID Storage2,731 acre-ft
Max Storage2,731 acre-ft
Normal Storage2,161 acre-ft
Surface Area105 acres
Drainage Area7 sq mi
Max Discharge3,140 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerST. VRAIN RESERVOIR AND FISH COMPANY (DAN GRANT, S
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection08/18/2020
Emergency Action PlanNot Required

Identifiers

NID IDCO02839
Federal IDCO02839
More InfoState Dam Safety Program

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