Chaffee Gulch Detention Dam #6

Chaffee Gulch Detention Dam #6 is a gravity dam located in Ouray County, Colorado, built in 1965. It carries a Low hazard potential classification and has a fair condition assessment.

About Chaffee Gulch Detention Dam #6

The primary purpose of Chaffee Gulch Detention Dam #6 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Doi Blm (federal). It impounds the Chaffee Gulch.

The dam stands 44 feet tall and stretches 588 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 20 acre-feet, and collects water from a drainage area of 2,030 square miles. Completed in 1965, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/18/2012. That was over 13 years ago.

At 44 feet, this dam is taller than 90% of dams nationwide.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyOuray
Nearest CityNone
River/StreamChaffee Gulch
Coordinates38.27438, -107.72283

Physical Characteristics

Dam TypeGravity
NID Height44 ft
Dam Length588 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage20 acre-ft
Max Storage20 acre-ft
Normal Storage20 acre-ft
Surface Area11 acres
Drainage Area2,030 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeDebris Control
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection06/18/2012
Emergency Action PlanNot Required

Identifiers

NID IDCO01267
Federal IDCO01267
More InfoState Dam Safety Program

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