Olmsted County Rd 10

Olmsted County Rd 10 is an earth dam located in Olmsted County, Minnesota, built in 1978. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Olmsted County Rd 10

The primary purpose of Olmsted County Rd 10 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by County Of Olmsted (local government). It impounds the Lynch Creek-tr near Whalan.

The dam stands 37 feet tall and stretches 440 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 114 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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 06/21/2017.

At 37 feet, this dam is taller than 84% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMinnesota
CountyOlmsted
Nearest CityWhalan
River/StreamLynch Creek-tr
Coordinates43.89311, -92.16917

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length440 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage114 acre-ft
Max Storage114 acre-ft
Normal Storage9 acre-ft
Surface Area1 acres
Drainage Area0 sq mi
Max Discharge43 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerCounty of Olmsted
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/21/2017
Emergency Action PlanNot Required

Identifiers

NID IDMN00869
Federal IDMN00869
More InfoState Dam Safety Program

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