Lake Tholocco Dam (Lake Tholocco)

Field Descriptions

Dam Name: Lake Tholocco
Other Name: LAKE THOLOCCO
NID ID: AL00665
Longitude: -85.72167
Latitude: 31.385
Map Section: T5N,R23E
County: DALE
River: CLAYBANK CREEK
State: AL
Nearest City: DALEVILLE
Distance: 4.00 miles
Owner Name: FORT RUCKER
Owner Type: Federal
Dam Designer: ARMY COE MOBILE DIST
Private Dam? No
Dam Type: Earth
Core: Upstream Facing (Position)
Earth (Type)
Known (Certainty)
Foundation: SZ
Purposes: Recreation
Year Completed: 1935
Dam Length: 2700 feet
Dam Height: 45 feet
Structural Height: 45 feet
Hydraulic Height: 37 feet
Maximum Discharge: 79900 cu ft/sec
Maximum Storage: 17600 acre-feet
Normal Storage: 9000 acre-feet
Surface Area: 680 acres
Drainage Area: 83 square miles
Hazard Potential: Significant
Emergency Action Plan? Yes
Inspection Date: 2009-02-01
Inspection Frequency: 4
State Regulated Dam? No
Spillway Type: Uncontrolled
Spillway Width: 23 feet
Outlet Gates: US
Federal Funding Agency: LAKE THOLOCCO
Federal Design Agency: Department of Defense;
U.S. Army
Federal Construction Agency: Department of Defense;
U.S. Army
Federal Regulatory Agency: Department of Defense;
U.S. Army
Federal Inspection Agency: Department of Defense;
U.S. Army
Federal Operating Agency: Department of Defense;
U.S. Army
Federal Owner (Agency): Department of Defense;
U.S. Army
Other Federal Agencies: Department of Defense;
U.S. Army
Source Agency: Department of Defense;
U.S. Army

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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