Tilleda

Tilleda is a gravity dam located in Shawano County, Wisconsin, built in 1910. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Tilleda

The primary purpose of Tilleda is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tilleda Pond Rehabilitation District (local government). It impounds the North Branch Embarrass near Tilleda.

The dam stands 17 feet tall and stretches 82 feet across, creates a reservoir covering 28 acres, has a maximum storage capacity of 160 acre-feet, and collects water from a drainage area of 70 square miles. Completed in 1910, the structure is over a century 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/25/2021.

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 Wisconsin 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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyShawano
Nearest CityTilleda
River/StreamNorth Branch Embarrass
Coordinates44.81447, -88.91329

Physical Characteristics

Dam TypeGravity
NID Height17 ft
Dam Height17 ft
Dam Length82 ft
Year Completed1910 (116 years old)

Storage & Hydraulics

NID Storage160 acre-ft
Max Storage160 acre-ft
Normal Storage133 acre-ft
Surface Area28 acres
Drainage Area70 sq mi
Max Discharge1,288 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerTILLEDA POND REHABILITATION DISTRICT
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection07/25/2021
Emergency Action PlanYes

Identifiers

NID IDWI00203
Federal IDWI00203
More InfoState Dam Safety Program

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