BUFFUMVILLE DAM

LITTLE RIVER - Thames River Basin - Charlton, MA

DRAINAGE AREA: 26.5 sq.mi.

PERMANENT POOL: 200 Acre Recreation Pool
Stage: 11 ft (492.5 ft NGVD)

DAM
Type: Rolled earth fill
Length: 3,255 Feet
Top Elev: 539.0 ft NGVD (57.5 ft)

FLOOD CONTROL STORAGE
Capacity: 11,280 Acre Feet
8.0 Inches of Runoff
Area at Crest: 530 Acres

CONTROL WORKS
Type: 3 Rectangular Conduits
Size: 3' x 4'-6"
Length: 44 ft
Invert Elev: 481.5 ft NGVD
Weir Elevation (top of logs): 492.5 ft NGVD (11 ft)
Capacity (Full Pool): 1,820 cfs
Number: 3
Gates (Type): Elec Slide
Size: 3' x 4'-6"
Channel Capacity: 350 cfs

SPILLWAY
Type: Concrete Ogee Weir
Length: 220 Feet
Elev: 524.0 ft NGVD (42.5 ft)

SPILLWAY DESIGN FLOOD

Original Design Criteria:
- Rainfall Excess: 25.4 inches
- Initial Pool Level: Full
- Flood Control Outlet Gates: Inoperable
- Peak Inflow: 36,500 cfs
- Peak Outflow: 29,800 cfs
- Max. Pool: 534.3 ft-NGVD
- Freeboard: 4.7 ft
Current HMR 51 & 52 Criteria:
- Rainfall Excess: 29.7 inches
- Initial Pool Level: Full
- Flood Control Outlet Gates: Operable
- Peak Inflow: 37,300 cfs
- Peak Outflow: 32,400 cfs
- Max. Pool: 534.5 ft-NGVD
- Freeboard: 4.5 ft

RECREATIONAL FACILITIES: Buffumville Park has facilities for swimming, picnicking, hiking, and volleyball. The volleyball court and the picnic shelter can be reserved for group use for a fee. An 18-hole disc (frisbee) golf course is open to the public at the Buffumville Damsite. .

TOTAL COST: $2,999,000

PLACED IN OPERATION: April 1958