Twin Lakes

Twin Lakes is an earth dam located in Larimer County, Colorado, built in 1904. It carries a Low hazard potential classification.

About Twin Lakes

The primary purpose of Twin Lakes is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Colorado Parks And Wildlife (state). It impounds the S Lone Pine Cr near Fort Collins.

The dam stands 15 feet tall and stretches 330 feet across, creates a reservoir covering 23 acres, and has a maximum storage capacity of 247 acre-feet. Completed in 1904, 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 09/25/2013. That was over 12 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyLarimer
Nearest CityFort Collins
River/StreamS Lone Pine Cr
Coordinates40.79138, -105.57292

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length330 ft
Year Completed1904 (122 years old)

Storage & Hydraulics

NID Storage247 acre-ft
Max Storage247 acre-ft
Normal Storage157 acre-ft
Surface Area23 acres
Max Discharge100 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCOLORADO PARKS AND WILDLIFE
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/25/2013
Emergency Action PlanNot Required

Identifiers

NID IDCO02041
Federal IDCO02041
More InfoState Dam Safety Program

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