Seven Reverse Y #1

Seven Reverse Y #1 is an earth dam located in Weld County, Colorado, built in 1965. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Seven Reverse Y #1

The primary purpose of Seven Reverse Y #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by James Konig (same) (private). It impounds the Willow Creek near Briggsdale.

The dam stands 29 feet tall and stretches 630 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 273 acre-feet, and collects water from a drainage area of 59 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/07/2009. That was over 16 years ago.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyWeld
Nearest CityBriggsdale
River/StreamWillow Creek
Coordinates40.75599, -104.39488

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height20 ft
Dam Length630 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage273 acre-ft
Max Storage273 acre-ft
Normal Storage10 acre-ft
Surface Area5 acres
Drainage Area59 sq mi
Max Discharge10,690 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerJAMES KONIG (SAME)
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/07/2009
Emergency Action PlanNot Required

Identifiers

NID IDCO00063
Federal IDCO00063
More InfoState Dam Safety Program

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