Lewis Smith Dam (Smith Lake)

Field Descriptions

Dam Name: Lewis Smith
Other Name: LEWIS SMITH
NID ID: AL01420
Longitude: -87.10833
Latitude: 33.94167
Map Section: S6 T13S R5W
County: WALKER, CULLMAN
River: SIPSEY FORK, WARRIOR RIVER
State: AL
Nearest City: SIPSEY
Distance: 12.00 miles
Owner Name: ALABAMA POWER COMPANY
Owner Type: Public Utility
Dam Designer: ALABAMA POWER COMPANY
Private Dam? No
Dam Type: Rockfill
Core: Core (Position)
Earth (Type)
Known (Certainty)
Foundation: RK
Purposes: Hydroelectric
Year Completed: 1961
Dam Length: 2200 feet
Dam Height: 300 feet
Structural Height: 300 feet
Hydraulic Height: 210 feet
Maximum Discharge: 317800 cu ft/sec
Maximum Storage: 1670600 acre-feet
Normal Storage: 1390000 acre-feet
Surface Area: 21200 acres
Drainage Area: 944 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2012-09-11
Inspection Frequency: 1
State Regulated Dam? No
Spillway Type: Uncontrolled
Spillway Width: 0 feet
Volume of Dam: 5195000 cubic yards
Federal Funding Agency: LEWIS SMITH
Federal Regulatory Agency:
Federal Inspection Agency:
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:






About Us
Contact Us
Site Map
Search Site
Advertise With Us
   
www.SmithLake.info
THE SMITH LAKE WEBSITE

Copyright 2022, Lakes Online
Privacy    |    Legal