Important Legacy real-time page

Available data

Select data types to graph from categories based on the way the data were collected.

Learn about the data collection categories

Continuous data

8 data types available - data from 2010-08-18 to 2026-08-04

Daily data

2 data types available - data from 1936-11-01 to 2026-08-02

Field measurements

2 data types available - data from 1937-11-04 to 2026-06-26

Discrete sample data

236 Observed properties (data types) available - with data from 1955-10-25 to 1994-08-11

53 Sampling activities

Statistical tables for select daily data types

2 data types available - data from 1936-11-01 to 2026-08-02

Important information about this monitoring location

The elevation of this gage is 33.19 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 33.19 feet to gage height values.

Location details and information

Zoom out to see link to My Favorites

Use Explore USGS Water Data to discover additional data near this location

Operated in cooperation with:

Connecticut Department of Energy and Environmental Protection

USGS - Cooperative Matching Funds

USGS - Federal Priority Streamgages

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01191000	n/a
Location name	NORTH BRANCH PARK RIVER AT HARTFORD, CT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	41.784438888888886	n/a
Decimal longitude (WGS84)	-72.70805555555556	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	33.19 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	26.8 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 North Branch Park River at Hartford, CT - USGS-01191000