Rohlfing Dam - Mononame 408

Rohlfing Dam - Mononame 408 is an earth dam located in Osage County, Missouri, built in 1962. It carries a High hazard potential classification.

About Rohlfing Dam - Mononame 408

The primary purpose of Rohlfing Dam - Mononame 408 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Donald J Rohlfing (private). It impounds the Tr-pointers Creek near Cooper Hill.

The dam stands 23 feet tall, creates a reservoir covering 6 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 94 square miles. Completed in 1962, the structure is well into its service life at over 50 years 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. The most recent inspection on record was 09/12/1978. That was 47 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

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 Missouri 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 HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyOsage
Nearest CityCooper Hill
River/StreamTr-pointers Creek
Coordinates38.45004, -91.75536

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Year Completed1962 (64 years old)

Storage & Hydraulics

NID Storage74 acre-ft
Max Storage74 acre-ft
Normal Storage45 acre-ft
Surface Area6 acres
Drainage Area94 sq mi

Ownership & Safety

PurposeRecreation
OwnerDONALD J ROHLFING
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection09/12/1978
Emergency Action PlanNot Required

Identifiers

NID IDMO30580
Federal IDMO30580
More InfoState Dam Safety Program

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