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Hillman Dam, Michigan

Hillman Dam on the Thunder Bay in Michigan.

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45.0616, -83.9035 · Montmorency County · NID MI00173. Tap the map to open this water in the live app.

What the runs do here

Thunder Bay carries no anadromous run on our corridor map, so this page makes no claim about salmon or steelhead at this dam. What it sits on is coldwater — resident trout water — and the section below says which classification says so.

The structure

Purpose
Hydroelectric, Recreation
Completed
1895
Type
Gravity
Height
16 ft
Length
128 ft
Spillway
Uncontrolled
Storage
500 acre-ft · 160 acre pool
Drainage
249 sq mi
Condition
Satisfactory · Low hazard potential
Status
Normal Operations

From the National Inventory of Dams (USACE). Hazard potential is a downstream-consequence classification, not a statement about the structure's condition.

The water above and below

Coldwater designation is the state's own classification. A dam sits on one river and this list is every designated reach within a mile and a half of it, so a tributary mouth shows up here too.

Water right now

No USGS temperature gauge we read reports within 20 miles of this dam, so this page has no live number for it. That is a gap in the gauge network, not a judgement about the water.

Getting to it

The dam sits on or beside Emerick Park, City of Hillman.

No listed public access site within 8 miles of this dam.

Fly shops nearby

Open this water on the map →Every reach around it coloured by today's water temperature, with the access points along it.