Lake Jb Thomas Dam (Lake JB Thomas)

Field Descriptions

Dam Name: Lake Jb Thomas Dam
NID ID: TX04138
Longitude: -101.135
Latitude: 32.5833
County: SCURRY
River: COLORADO RIVER
State: TX
Nearest City: COLORADO CITY
Distance: 50.00 miles
Owner Name: COLORADO RIVER MUNICIPAL WATER DISTRICT
Owner Type: Local Government
Dam Designer: FREESE AND NICHOLS;FREESE AND NICHOLS
Private Dam? No
Dam Type: Earth
Core: Core (Position)
Earth (Type)
Known (Certainty)
Foundation: RSZ
Purposes: Water Supply
Year Completed: 1952
Year Modified/Mod Type: 2007O
Dam Length: 14500 feet
Dam Height: 105 feet
Structural Height: 105 feet
Hydraulic Height: 100 feet
Maximum Discharge: 161001 cu ft/sec
Maximum Storage: 430600 acre-feet
Normal Storage: 204604 acre-feet
Surface Area: 7820 acres
Drainage Area: 3524 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2005-07-06
Inspection Frequency: 0
State Regulated Dam? Yes
State Regulating Agency: TCEQ
Spillway Type: Uncontrolled
Spillway Width: 501 feet
Outlet Gates: U1;V1
Source Agency:

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