Conroe Dam (Lake Conroe)

Field Descriptions

Dam Name: Conroe Dam
NID ID: TX00097
Longitude: -95.5646
Latitude: 30.3567
County: MONTGOMERY
River: WEST FORK SAN JACINTO RIVER
State: TX
Nearest City: CONROE
Distance: 9.00 miles
Owner Name: SAN JACINTO RIVER AUTHORITY
Owner Type: Local Government
Dam Designer: ENDRESS;FREESE AND NICHOLS;FREESE AND NICHOLS;FREESE AND NICHOLS;FREESE AND NICHOLS;FREESE AND NICHOLS
Private Dam? NO
Dam Type: Earth
Core: Core (Position)
Earth (Type)
Known (Certainty)
Foundation: SK
Purposes: Irrigation
Year Completed: 1973
Year Modified/Mod Type: 2009O;2006O;2001H;2001S
Dam Length: 11300 feet
Dam Height: 82 feet
Structural Height: 82 feet
Hydraulic Height: 82 feet
Maximum Discharge: 247247 cu ft/sec
Maximum Storage: 706970 acre-feet
Normal Storage: 430260 acre-feet
Surface Area: 20985 acres
Drainage Area: 444 square miles
Hazard Potential: HIGH
Emergency Action Plan? YES
Inspection Date: 2010-11-30
Inspection Frequency: 5
State Regulated Dam? YES
State Regulating Agency: TCEQ
Spillway Type: CONTROLLED
Spillway Width: 200 feet
Outlet Gates: S4;O1
Source Agency:

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