Prettyboy Dam (Prettyboy Reservoir)

Field Descriptions

Dam Name: Prettyboy Dam
Former Name: PRETTYBOY RESERVOIR
NID ID: MD00001
Longitude: -76.70834
Latitude: 39.6196
County: BALTIMORE
River: GUNPOWDER FALLS
State: MD
Nearest City: MONKTON
Distance: 11 miles
Owner Name: BALTIMORE CITY DPW RESERVOIR SECTION
Owner Type: Local Government
Dam Designer: RK&K; (MODIF), BALTIMORE CITY DPW (ORIG)
Private Dam? No
Dam Type: Gravity
Foundation: RK
Purposes: Water Supply
Year Completed: 1936
Year Modified/Mod Type: 1936
Dam Length: 692 feet
Dam Height: 155 feet
Maximum Discharge: 24500 cu ft/sec
Maximum Storage: 90100 acre-feet
Normal Storage: 60100 acre-feet
Surface Area: 1500 acres
Drainage Area: 80 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2012-08-21
Inspection Frequency: 1
State Regulated Dam? Yes
State Regulating Agency: MD Dam Safety
Spillway Type: Uncontrolled
Spillway Width: 274 feet
Outlet Gates: None
Source Agency:

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