Zimmerman Lake

Zimmerman Lake is an earth dam located in Larimer County, Colorado, built in 1913. It carries a Low hazard potential classification.

About Zimmerman Lake

The primary purpose of Zimmerman Lake 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 Colorado Parks And Wildlife (state). It impounds the Joe Wright Cr-tr near Fort Collins.

The dam stands 10 feet tall and stretches 600 feet across, creates a reservoir covering 20 acres, and has a maximum storage capacity of 238 acre-feet. Completed in 1913, 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 07/11/2013. 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/StreamJoe Wright Cr-tr
Coordinates40.54167, -105.87057

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length600 ft
Year Completed1913 (113 years old)

Storage & Hydraulics

NID Storage238 acre-ft
Max Storage238 acre-ft
Normal Storage138 acre-ft
Surface Area20 acres
Max Discharge265 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerCOLORADO PARKS AND WILDLIFE
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection07/11/2013
Emergency Action PlanNot Required

Identifiers

NID IDCO01991
Federal IDCO01991
More InfoState Dam Safety Program

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