Hanson

Hanson is an earth dam located in Carlton County, Minnesota, built in 1979. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Hanson

The primary purpose of Hanson 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 Schneider, James (private). It impounds the Skunk Creek near Superior, Wisconsin.

The dam stands 22 feet tall and stretches 830 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 573 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1979, the structure is 47 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 08/20/2014. That was over 11 years ago.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMinnesota
CountyCarlton
Nearest CitySuperior, Wisconsin
River/StreamSkunk Creek
Coordinates46.50240, -92.49573

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height19 ft
Dam Length830 ft
Year Completed1979 (47 years old)

Storage & Hydraulics

NID Storage573 acre-ft
Max Storage573 acre-ft
Normal Storage12 acre-ft
Surface Area7 acres
Drainage Area4 sq mi
Max Discharge536 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSchneider, James
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/20/2014
Emergency Action PlanNot Required

Identifiers

NID IDMN00831
Federal IDMN00831
More InfoState Dam Safety Program

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