Rolph #1

Rolph #1 is an earth dam located in Carter County, Montana, built in 1948. It carries a Low hazard potential classification.

About Rolph #1

The primary purpose of Rolph #1 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 Ray Rolph (private). It impounds the Tr-middle Slick Creek near Camp Crook South Dakota.

The dam stands 15 feet tall and stretches 100 feet across, has a maximum storage capacity of 63 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.

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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyCarter
Nearest CityCamp Crook South Dakota
River/StreamTr-middle Slick Creek
Coordinates45.72740, -104.07130

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length100 ft
Year Completed1948 (78 years old)

Storage & Hydraulics

NID Storage63 acre-ft
Max Storage63 acre-ft
Normal Storage25 acre-ft
Drainage Area8 sq mi
Max Discharge100 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerRAY ROLPH
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT02516
Federal IDMT02516
More InfoState Dam Safety Program

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