Howell Heflin Lock and Dam (Gainesville Lake)

Field Descriptions

Dam Name: Howell Heflin Lock and Dam
Other Name: GAINESVILLE LAKE
Former Name: GAINESVILLE
NID ID: AL01980
Longitude: -88.16667
Latitude: 32.83333
County: GREENE
River: TOMBIGBEE
State: AL
Nearest City: GAINESVILLE, AL.
Distance: 4.00 miles
Owner Name: CESAM
Owner Type: Federal
Private Dam? NO
Purposes: Navigation
Year Completed: 1977
Dam Length: 816 feet
Dam Height: 0 feet
Structural Height: 56 feet
Hydraulic Height: 46 feet
Maximum Discharge: 225000 cu ft/sec
Maximum Storage: 58000 acre-feet
Normal Storage: 45290 acre-feet
Surface Area: 6400 acres
Drainage Area: 7212 square miles
Hazard Potential: HIGH
Emergency Action Plan? YES
Inspection Date: 2010-07-21
Inspection Frequency: 5
State Regulated Dam? NO
Spillway Type: CONTROLLED
Spillway Width: 523 feet
Volume of Dam: 1576000 cubic yards
Number of Locks: 1
Length of Locks: 600 feet
Lock Width: 110 feet
Federal Funding Agency: GAINESVILLE LAKE
Federal Design Agency: Department of Defense;
U.S. Army Corps of Engineers
Federal Construction Agency: Department of Defense;
U.S. Army Corps of Engineers
Federal Regulatory Agency:
Federal Inspection Agency:
Federal Operating Agency: Department of Defense;
U.S. Army Corps of Engineers
Federal Owner (Agency): Department of Defense;
U.S. Army Corps of Engineers
Other Federal Agencies: Department of Defense;
U.S. Army Corps of Engineers
Source Agency: Department of Defense;
U.S. Army Corps of Engineers

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