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Available data

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Continuous data

8 data types available - data from 1987-10-01 to 2026-08-08

Daily data

2 data types available - data from 1961-08-01 to 2026-08-06

Field measurements

2 data types available - data from 1962-03-13 to 2026-06-15

Discrete sample data

451 Observed properties (data types) available - with data from 1962-04-25 to 2026-07-15

307 Sampling activities

Peak measurements

2 data types available - with data from 1938-09-21 to 2024-01-10

Statistical tables for select daily data types

2 data types available - data from 1961-08-01 to 2026-08-06

Important information about this monitoring location

The elevation of this gage is 45.48 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 45.48 feet to gage height values.

Location details and information

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Operated in cooperation with:

Connecticut Department of Energy and Environmental Protection

Connecticut Water Company

USGS - Cooperative Matching Funds

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01184490	n/a
Location name	BROAD BROOK AT BROAD BROOK, CT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	41.91389722222222	n/a
Decimal longitude (WGS84)	-72.5497	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .01 sec (Differentially-Corrected GPS).	H
District	Connecticut	09
State	Connecticut	09
County	Capitol Planning Region	110
Country	United States of America	n/a
Altitude of gage/land surface	45.48 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.16 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Outlet Connecticut River	01080205
Drainage basin		n/a
Date of first construction		n/a
Drainage area	15.5 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Broad Brook at Broad Brook, CT - USGS-01184490