CHARLES RIVER DAM - BOSTON, MA

CHARLES RIVER - Charles River Basin (Coastal)

PROJECT USE: Flood Control, Recreation and Navigation
   Operate the dam to keep basin level below start of damage of 
4.35 Ft NGVD by using pumps and sluice gates to pass inflows against 
high tide levels.
PROJECT PERSONNEL: Owned, Operated and Maintained by the Metropolitan District Commission (MDC) of Boston - (617)727-0488

DRAINAGE AREA: 309 sq. mi.

NORMAL POOL: 2.35 Ft NGVD (704 Acres; 10,540 Acre Feet)

DAM

CONTROL WORKS
Pumps:  6 @ 1,400 cfs against 9 ft head
Sluice Gates:  1-High Level 8 ft x 10 ft
               Upstream invert = -10.15 Ft NGVD

               1-Low Level 8 ft X 10 ft
               Upstream invert = -18.65 Ft NGVD
NAVIGATION LOCKS TOTAL COST: $61,216,000

PLACED IN OPERATION: May 1978

TIDE DATA IN MDC DATUM (Ft NGVD = MDC Datum - 105.63)
      Highest Recorded (7 Feb 1978) 116.0 MDC(10.4 NGVD)
      Mean High                     110.5
      Mean Low                      101.0
      Design Tide                   113.0