Adams & Bunker #3

Adams & Bunker #3 is an earth dam located in Weld County, Colorado, built in 1906. It carries a Low hazard potential classification and has a fair condition assessment.

About Adams & Bunker #3

The primary purpose of Adams & Bunker #3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lloyd Lambertson, (private). It impounds the Porter Creek near Briggsdale.

The dam stands 16 feet tall and stretches 1,580 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 520 acre-feet, and collects water from a drainage area of 133 square miles. Completed in 1906, 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. 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 09/16/2016.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyWeld
Nearest CityBriggsdale
River/StreamPorter Creek
Coordinates40.87194, -104.36973

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length1,580 ft
Year Completed1906 (120 years old)

Storage & Hydraulics

NID Storage520 acre-ft
Max Storage520 acre-ft
Normal Storage400 acre-ft
Surface Area50 acres
Drainage Area133 sq mi
Max Discharge1,100 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerLLOYD LAMBERTSON,
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection09/16/2016
Emergency Action PlanNot Required

Identifiers

NID IDCO01189
Federal IDCO01189
More InfoState Dam Safety Program

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