Bolen

Bolen is an earth dam located in Mesa County, Colorado, built in 1973. It carries a Significant hazard potential classification and has a fair condition assessment.

About Bolen

The primary purpose of Bolen 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 City Of Grand Junction (local government). It impounds the Kannah Creek near Grand Junction.

The dam stands 25 feet tall and stretches 1,450 feet across, creates a reservoir covering 81 acres, has a maximum storage capacity of 1,223 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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. An emergency action plan is in place for this dam. The most recent inspection on record was 08/25/2021.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyMesa
Nearest CityGrand Junction
River/StreamKannah Creek
Coordinates39.02500, -108.21723

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length1,450 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage1,223 acre-ft
Max Storage1,223 acre-ft
Normal Storage535 acre-ft
Surface Area81 acres
Drainage Area2 sq mi
Max Discharge2,000 cfs
Spillway TypeNone

Ownership & Safety

PurposeWater Supply
OwnerCITY OF GRAND JUNCTION
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection08/25/2021
Emergency Action PlanYes

Identifiers

NID IDCO00821
Federal IDCO00821
More InfoState Dam Safety Program

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