AU Train South Levee Dam (Au Train Lake)

Field Descriptions

Dam Name: AU Train South Levee
NID ID: MI83026
Longitude: -86.85
Latitude: 46.33333
Map Section: 30, 31 T45N R20W
County: ALGER
River: AU TRAIN
State: MI
Nearest City: Au Train
Distance: 20.00 miles
Owner Name: UPPER PENINSULA POWER COMPANY
Owner Type: U
Private Dam? No
Dam Type: RE
Year Completed: 1910
Dam Length: 4500 feet
Dam Height: 15 feet
Maximum Discharge: 61600 cu ft/sec
Maximum Storage: 12350 acre-feet
Normal Storage: 12350 acre-feet
Surface Area: 1560 acres
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 1997-09-25
Inspection Frequency: 2.00
State Regulated Dam? No
Spillway Type: Uncontrolled
Spillway Width: 15 feet
Outlet Gates: X0
Federal Regulatory Agency: Department of Energy;
Federal Energy Regulatory Commission
Federal Inspection Agency: Department of Energy;
Federal Energy Regulatory Commission
Source Agency: Department of Energy;
Federal Energy Regulatory Commission

Dam Safety For Boats

A large amount of water can be released from a dam without any warning at any time and by any means. For example, when the demand for electricity is high, the turbines at a dam may be turned on automatically, resulting in a significant increase in the downstream flow of water in only a matter of seconds.

If there's a need to release water through the sluiceways (outlets at the base of the dam), this operation can also create a great swell of discharged water downstream.

During flood operations, any or all spillway gates across the width of a dam can be opened to release upstream flood water that needs to pass to the next downstream reservoir. Upstream or downstream, even the most experienced boater with the strongest motor is no match for this strong flow of water plunging over a spillway of a dam. Even if you're boating far downstream of a spilling dam, recirculating current can pull a powerful boat upstream toward plunging water that could shred any boat.

Some dams equipped with navigation locks create turbulent water as well. When vessels pass through, strong flow is released near the exhaust ports of the wing wall of the lock.

Warning Systems At Dams

To warn reservoir users of potential danger, warning devices are installed at many dams:




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