Lake Marie Dam (Lake Marie)

Field Descriptions

Dam Name: Lake Marie Dam
Other Name: LAKE MARIE
NID ID: IL01119
Longitude: -90.1417
Latitude: 40.5283
Map Section: 2;6N;3E;4
County: FULTON
River: PUT CREEK-OFFSTREAM
State: IL
Nearest City: SEVILLE
Distance: 11 miles
Owner Name: WEE-MA-TUK HILLS INC.
Owner Type: Private
Dam Designer: UNKNOWN
Private Dam? No
Dam Type: Earth
Purposes: Recreation
Dam Length: 550 feet
Dam Height: 27 feet
Maximum Storage: 2752 acre-feet
Normal Storage: 2040 acre-feet
Hazard Potential: Low
Emergency Action Plan? No
Inspection Date: 1994-10-25
Inspection Frequency: 0
State Regulated Dam? Yes
State Regulating Agency: IDNR
Spillway Type: Uncontrolled
Spillway Width: 0 feet
Outlet Gates: U
Federal Funding Agency: LAKE MARIE
Source Agency:

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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