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USGS 01105606 WHITMANS POND, WHITMANS POND DAM AT E. WEYMOUTH,MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 42o12'39", long 70o55'46", Norfolk County, Hydrologic Unit 01090001, on Whitmans Pond Dam, approximately 1,000 ft upstream from Iron Hill Dam, and 1,300 ft upstream from Whitman's Pond Outlet gage below Iron Hill Street, at East Weymouth, MA.
DRAINAGE AREA--12.4 mi2.
PERIOD OF RECORD--Gage height: January 2002 to current year.
GAGE--Data Collection Platform with telephone telemeter. Datum of gage at Town of Weymouth datum. Subtract 6.67 ft from gage height values to adjust to NAVD 1988. Subtract 5.87 from gage height values to adjust to NGVD 1929.
REMARKS--Flows affected by withdrawals for public water supply of Weymouth. The Old Swamp River gage (01105600) is located 0.4 mi upstream from Whitman's Pond, South Cove, and points of water withdrawals and diversions. Discharge record below 10 cfs considered poor.
COOPERATION BY--Town of Weymouth, MA

FLOOD BY-PASS SIPHON INFORMATION--Whitman's Pond Dam contains four siphon openings which are designed to by-pass high flows around the Whitman's Pond Dam fish ladder directly to the lower Iron Hill Pond. The four siphon openings located at Iron Hill Pond Dam are designed to by-pass flood flows around the Iron Hill Pond Dam fish ladder directly to the flood by-pass system that discharges flood flows to the inter-tidal zone downstream of Jackson Square. The following list shows the bottom elevations for the Whitman's Pond Dam siphon openings. Siphon Unit 2 is the first unit to by-pass flood flows to Iron Hill Pond and is at the same elevation as the spillway.

Whitman's Pond Dam--flows by-pass Whitman's Pond fish ladder when Whitman's Pond elevation exceeds the following siphon inlet elevations (Town of Weymouth Datum, in feet):

Siphon Unit 2 72.47
Siphon Unit 3 72.57
Siphon Unit 1 72.67
Siphon Unit 4 72.77
Spillway 72.47

Photo of Whitman's Pond and Iron Hill Pond Gage Shelter
Photo of Whitman's Pond Staff Reference Gage and Sensor Location

This station managed by the Northborough MA Field Office.

Available Parameters Period of Record
  
2001-12-22  2021-09-21
2002-03-09  2021-09-21







 (365)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second


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