Rongis Detention Dam

Rongis Detention Dam is a gravity dam located in Fremont County, Wyoming, built in 1952. It carries a Low hazard potential classification and has a poor condition assessment.

About Rongis Detention Dam

The primary purpose of Rongis Detention Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Doi Blm (federal). It impounds the Logan Gulch.

The dam stands 29 feet tall and stretches 1,686 feet across, creates a reservoir covering 78 acres, and has a maximum storage capacity of 527 acre-feet. Completed in 1952, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 07/18/2017.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyFremont
River/StreamLogan Gulch
Coordinates42.85855, -107.96591

Physical Characteristics

Dam TypeGravity
NID Height29 ft
Dam Length1,686 ft
Year Completed1952 (74 years old)

Storage & Hydraulics

NID Storage970 acre-ft
Max Storage527 acre-ft
Normal Storage970 acre-ft
Surface Area78 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection07/18/2017
Emergency Action PlanNot Required

Identifiers

NID IDWY01426
Federal IDWY01426
More InfoState Dam Safety Program

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