SUCKER BROOK DAM

SUCKER BROOK - Connecticut River Basin - Winchester, CT

Owned and Maintained by the State of Connecticut, Dept. of Environmental Protection, Water and Related Resources Unit - (860) 566-7244

DRAINAGE AREA: 3.43 sq.mi.

PERMANENT POOL: None

DAM
Type: Rolled earth fill
Length: 1,160 Feet
Top Elev = 949.0 Ft NGVD (68 Ft)

FLOOD CONTROL STORAGE
Capacity: 1480 Acre Feet
8.1 Inches of Runoff
Area at Crest: 53.5 Acres

CONTROL WORKS
Type: Concrete Conduit
Size: 3 ft x 3 ft
Length: 426 Feet
Invert Elev = 881.0 Ft NGVD
Capacity (Full Pool): 115 cfs
Gate (Type): Ungated
Channel Capacity = 115 cfs

SPILLWAY
Type: Chute Spillway/Ogee Weir
Length: 60 Feet
Elev = 935.0 Ft NGVD (54 Ft)

SPILLWAY DESIGN FLOOD

• Original Design Criteria:
• Rainfall Excess = 21.2 inches
• Initial Pool Level = Full
• Flood Control Outlet Gates = Negligible
• Peak Inflow = 6,500 cfs
• Peak Outflow = 6,400 cfs
• Max. Pool = 944.2 ft-NGVD
• Freeboard = 4.8 ft

RECREATIONAL FACILITIES: None

TOTAL COST: $2,300,000

PLACED IN OPERATION: June 1971

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