Thorson Group North

Significant HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateMinnesota
CountyHouston
Nearest CityHokah
River/StreamRoot River S Fork-TR
Coordinates43.72957, -91.62834

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height28 ft
Dam Length440 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage45 acre-ft
Max Storage45 acre-ft
Drainage Area0 sq mi
Max Discharge800 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerMNDNR-Forestry
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection04/26/2023
Emergency Action PlanNot Required

Identifiers

NID IDMN00343
Federal IDMN00343
More InfoState Dam Safety Program

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