Enterprise (lower)

Enterprise (lower) is a masonry dam located in Washington County, Utah, built in 1925. It carries a High hazard potential classification and has a fair condition assessment.

About Enterprise (lower)

The primary purpose of Enterprise (lower) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Enterprise Reservoir & Canal Company (private). It impounds the Little Pine Creek near Enterprise.

The dam stands 56 feet tall and stretches 170 feet across, has a maximum storage capacity of 1,742 acre-feet, and collects water from a drainage area of 35 square miles. Completed in 1925, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 06/07/2023.

At 56 feet, this dam is taller than 94% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Utah dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateUtah
CountyWashington
Nearest CityEnterprise
River/StreamLittle Pine Creek
Coordinates37.52682, -113.85081

Physical Characteristics

Dam TypeMasonry
NID Height56 ft
Dam Length170 ft
Year Completed1925 (101 years old)

Storage & Hydraulics

NID Storage1,742 acre-ft
Max Storage1,742 acre-ft
Normal Storage1,672 acre-ft
Drainage Area35 sq mi
Max Discharge129 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerENTERPRISE RESERVOIR & CANAL COMPANY
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection06/07/2023
Emergency Action PlanYes

Identifiers

NID IDUT00189
Federal IDUT00189
More InfoState Dam Safety Program

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