Summitville Tailings

Summitville Tailings is an earth dam located in Rio Grande County, Colorado, built in 1968. It carries a Low hazard potential classification.

About Summitville Tailings

The primary purpose of Summitville Tailings is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Colorado Dept Of Public Health & Environment (boar (state). It impounds the Wightman Fork near Capulin.

The dam stands 83 feet tall and stretches 675 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 450 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1968, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 08/09/2022.

At 83 feet, this dam is taller than 97% of all dams in the United States.

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Low HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyRio Grande
Nearest CityCapulin
River/StreamWightman Fork
Coordinates37.42862, -106.58863

Physical Characteristics

Dam TypeEarth
NID Height83 ft
Dam Height80 ft
Dam Length675 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage450 acre-ft
Max Storage450 acre-ft
Normal Storage276 acre-ft
Surface Area16 acres
Drainage Area4 sq mi
Max Discharge5,940 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCOLORADO DEPT OF PUBLIC HEALTH & ENVIRONMENT (BOAR
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection08/09/2022
Emergency Action PlanYes

Identifiers

NID IDCO00785
Federal IDCO00785
More InfoState Dam Safety Program

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