HANCOCK BROOK DAM (UNSTAFFED)

HANCOCK BROOK - Naugatuck River Watershed - Plymouth, CT

DRAINAGE AREA: 12 sq.mi.

PERMANENT POOL: 40 Acre Recreation Pool
Stage: 7 ft (461.0 ft NGVD)

DAM
Type: Rolled earth fill
Length: 630 Feet
Top Elev: 505.0 ft NGVD (51 ft)

FLOOD CONTROL STORAGE
Capacity: 3,900 Acre Feet
6.13 Inches of Runoff
Area at Crest: 266 Acres

CONTROL WORKS
Type: Rectangular Concrete Conduit
Size: 3' x 4'-6"
Length: 250 Feet
Invert Elev: 454.0 ft NGVD
Weir Elevation (top of logs): 461.0 ft NGVD (7 ft)
Capacity (Full Pool): 377 cfs
Gate (Type): Dewatering Gate
Number: 1
Size: 2' x 2'
Channel Capacity: 350 cfs

SPILLWAY
Type: Chute Spillway/broadcrested weir
Length: 100 Feet
Elev: 484.0 ft NGVD (30 ft)

SPILLWAY DESIGN FLOOD RECREATIONAL FACILITIES: Trails, fishing, and hunting.

TOTAL COST: $3,700,000

PLACED IN OPERATION: July 1966