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USGS Current Water Data for Connecticut

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NOTICE (03/30/2017) -- Data collection at the following gages may be discontinued on June 30, 2017 due to funding reductions from partner agencies. Although historic data will remain accessible, no new data will be collected unless one or more new funding partners are found. Users who can contribute funding for the non-Federal share of costs to continue operation of these streamgages should contact Jon Morrison at the USGS New England Water Science Center - Connecticut Office (860-291-6761) or email at jmorriso@usgs.gov.
  • 01191000 North Branch Park River at Hartford------52 yrs of record
  • 01208873 Rooster River at Fairfield------------------39 yrs of record
  • 01208925 Mill River near Fairfield--------------------44 yrs of record

Daily Streamflow Conditions

Select a site to retrieve data and station information.
Stream gage levels in Connecticut, relative to 30 year average. 01118500: Flow=1420cfs,Stage=6.11ft,Floodstage=7ft,2017-05-01 02:00,>90,PAWCATUCK RIVER AT WESTERLY, RI01118000: Flow=525cfs,Stage=4.16ft,Floodstage=5ft,2017-05-01 01:15,>90,WOOD RIVER AT HOPE VALLEY, RI01117500: Flow=456cfs,Stage=3.60ft,Floodstage=5ft,2017-05-01 01:45,>90,PAWCATUCK RIVER AT WOOD RIVER JUNCTION, RI01205500: Flow=495cfs,Stage=2.57ft,Floodstage=11ft,2017-05-01 01:30,<10,HOUSATONIC RIVER AT STEVENSON, CT01118300: Flow=13.8cfs,Stage=1.69ft,2017-05-01 01:45,76-90,PENDELTON HILL BROOK NEAR CLARKS FALLS, CT01208925: Flow=21.7cfs,Stage=1.19ft,2017-05-01 02:00,10-24,MILL RIVER NEAR FAIRFIELD, CT01208873: Flow=10.3cfs,Stage=3.24ft,2017-05-01 01:55,10-24,ROOSTER RIVER AT FAIRFIELD, CT01200500: Flow=1490cfs,Stage=3.54ft,Floodstage=8ft,2017-05-01 02:00,10-24,HOUSATONIC RIVER AT GAYLORDSVILLE, CT01199000: Flow=988cfs,Stage=3.22ft,Floodstage=7ft,2017-05-01 01:15,10-24,HOUSATONIC RIVER AT FALLS VILLAGE, CT01192500: Flow=92.5cfs,Stage=2.27ft,2017-05-01 01:30,10-24,HOCKANUM RIVER NEAR EAST HARTFORD, CT01188000: Flow=5.68cfs,Stage=2.53ft,2017-05-01 01:15,10-24,BUNNELL BROOK NEAR BURLINGTON, CT01186500: Flow=122cfs,Stage=2.34ft,2017-05-01 01:30,10-24,STILL RIVER AT ROBERTSVILLE, CT01184490: Flow=22.9cfs,Stage=0.83ft,2017-05-01 01:45,10-24,BROAD BROOK AT BROAD BROOK, CT01122500: Flow=620cfs,Stage=3.30ft,Floodstage=13ft,2017-05-01 01:30,10-24,SHETUCKET RIVER NEAR WILLIMANTIC, CT01122000: Flow=260cfs,Stage=2.66ft,2017-05-01 01:30,10-24,NATCHAUG RIVER AT WILLIMANTIC, CT01121000: Flow=42.3cfs,Stage=1.85ft,Floodstage=7ft,2017-05-01 01:15,10-24,MOUNT HOPE RIVER NEAR WARRENVILLE, CT01119500: Flow=192cfs,Stage=3.63ft,Floodstage=8ft,2017-05-01 01:15,10-24,WILLIMANTIC RIVER NEAR COVENTRY, CT01209700: Flow=49.7cfs,Stage=1.54ft,2017-05-01 01:30,25-75,NORWALK RIVER AT SOUTH WILTON, CT01209500: Flow=114cfs,Stage=3.76ft,2017-05-01 02:00,25-75,SAUGATUCK RIVER NEAR WESTPORT, CT01208990: Flow=37.3cfs,Stage=1.84ft,2017-05-01 01:00,25-75,SAUGATUCK RIVER NEAR REDDING, CT01208950: Flow=10.1cfs,Stage=1.41ft,2017-05-01 01:30,25-75,SASCO BROOK NEAR SOUTHPORT, CT01208500: Flow=515cfs,Stage=2.66ft,Floodstage=12ft,2017-05-01 01:30,25-75,NAUGATUCK RIVER AT BEACON FALLS, CT01206900: Flow=150cfs,Stage=2.31ft,2017-05-01 01:30,25-75,NAUGATUCK RIVER AT THOMASTON, CT01204000: Flow=110cfs,Stage=3.34ft,Floodstage=9ft,2017-05-01 02:00,25-75,POMPERAUG RIVER AT SOUTHBURY, CT01203600: Flow=25.3cfs,Stage=1.65ft,2017-05-01 01:10,25-75,NONEWAUG RIVER AT MINORTOWN, CT01200000: Flow=274cfs,Stage=1.96ft,Floodstage=9ft,2017-05-01 01:15,25-75,TENMILE RIVER NEAR GAYLORDSVILLE, CT01199050: Flow=46.8cfs,Stage=1.31ft,2017-05-01 02:00,25-75,SALMON CREEK AT LIME ROCK, CT01196620: Flow=64.9cfs,Stage=1.67ft,2017-05-01 01:15,25-75,MILL RIVER NEAR HAMDEN, CT01196500: Flow=238cfs,Stage=3.59ft,Floodstage=10ft,2017-05-01 02:00,25-75,QUINNIPIAC RIVER AT WALLINGFORD, CT01195100: Flow=14.3cfs,Stage=2.14ft,2017-05-01 01:45,25-75,INDIAN RIVER NEAR CLINTON, CT01194500: Flow=54.8cfs,Stage=2.43ft,2017-05-01 01:45,25-75,EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CT01194000: Flow=50.0cfs,Stage=3.08ft,2017-05-01 01:15,25-75,EIGHTMILE RIVER AT NORTH PLAIN, CT01193500: Flow=190cfs,Stage=3.04ft,2017-05-01 01:15,25-75,SALMON RIVER NEAR EAST HAMPTON, CT01192883: Flow=75.0cfs,Stage=5.54ft,2017-05-01 01:00,25-75,COGINCHAUG RIVER AT MIDDLEFIELD, CT01191000: Flow=20.8cfs,Stage=1.78ft,2017-05-01 01:00,25-75,NORTH BRANCH PARK RIVER AT HARTFORD, CT01189995: Flow=978cfs,Stage=2.30ft,Floodstage=9ft,2017-05-01 01:15,25-75,FARMINGTON RIVER AT TARIFFVILLE, CT01188090: Flow=597cfs,Stage=5.81ft,Floodstage=12ft,2017-05-01 01:30,25-75,FARMINGTON RIVER AT UNIONVILLE, CT01187300: Flow=31.4cfs,Stage=1.56ft,2017-05-01 01:30,25-75,HUBBARD RIVER NEAR WEST HARTLAND, CT01186000: Flow=311cfs,Stage=4.29ft,2017-05-01 01:30,25-75,WEST BRANCH FARMINGTON RIVER AT RIVERTON, CT01185500: Flow=167cfs,Stage=3.41ft,Floodstage=8ft,2017-05-01 01:30,25-75,WEST BRANCH FARMINGTON RIVER NEAR NEW BOSTON, MA01184100: Flow=13.5cfs,Stage=1.59ft,2017-05-01 02:00,25-75,STONY BROOK NEAR WEST SUFFIELD, CT01184000: Flow=25300cfs,Stage=10.23ft,Floodstage=15ft,2017-05-01 01:30,25-75,CONNECTICUT RIVER AT THOMPSONVILLE, CT01183500: Flow=969cfs,Stage=4.93ft,Floodstage=13ft,2017-05-01 01:30,25-75,WESTFIELD RIVER NEAR WESTFIELD, MA01127500: Flow=184cfs,Stage=2.60ft,Floodstage=9ft,2017-05-01 01:45,25-75,YANTIC RIVER AT YANTIC, CT01127000: Flow=1540cfs,Stage=7.30ft,Floodstage=17.5ft,2017-05-01 01:30,25-75,QUINEBAUG RIVER AT JEWETT CITY, CT01125500: Flow=658cfs,Stage=3.81ft,Floodstage=9.5ft,2017-05-01 01:30,25-75,QUINEBAUG RIVER AT PUTNAM, CT01125000: Flow=163cfs,Stage=5.51ft,2017-05-01 01:30,25-75,FRENCH RIVER AT WEBSTER, MA01124151: Flow=367cfs,Stage=1.99ft,2017-05-01 01:30,25-75,QUINEBAUG RIVER AT WEST THOMPSON, CT01124000: Flow=319cfs,Stage=3.19ft,2017-05-01 02:00,25-75,QUINEBAUG RIVER AT QUINEBAUG, CT01123600: Flow=193cfs,Stage=4.26ft,2017-05-01 01:30,25-75,QUINEBAUG R BL WESTVILLE DAM NR SOUTHBRIDGE, MA01123360: Flow=138cfs,Stage=3.53ft,2017-05-01 01:30,25-75,QUINEBAUG R BL E BRIMFIELD DAM AT FISKDALE, MA01123000: Flow=62.3cfs,Stage=2.12ft,2017-05-01 01:15,25-75,LITTLE RIVER NEAR HANOVER, CT01117800: Flow=98.3cfs,Stage=3.64ft,2017-05-01 01:45,25-75,WOOD RIVER NEAR ARCADIA, RI01111300: Flow=32.0cfs,Stage=3.68ft,2017-05-01 01:15,25-75,NIPMUC RIVER NEAR HARRISVILLE, RI0137449480: Flow=115cfs,Stage=4.42ft,2017-05-01 00:30,Not ranked,EAST BRANCH CROTON RIVER NEAR PUTNAM LAKE NY012112296: Stage=3.10ft,2017-05-01 01:42,Not ranked,GREENWICH HARBOR AT GRASS ISLAND AT GREENWICH, CT012095493: Flow=6.23cfs,Stage=1.91ft,2017-05-01 01:30,Not ranked,RIDGEFIELD BROOK AT SHIELDS LANE NR RIDGEFIELD, CT012035055: Flow=29.6cfs,Stage=3.02ft,2017-05-01 01:30,Not ranked,POOTATUCK RIVER AT BERKSHIRE011277905: Flow=9.65cfs,2015-10-01 23:30,Stage=2.13ft,2015-10-31 23:30:00,Not ranked,LATIMER BROOK NR I-95N EXIT 75 NR FLANDERS, CT011230695: Flow=1010cfs,Stage=6.61ft,2017-05-01 02:00,Not ranked,SHETUCKET RIVER AT TAFTVILLE, CT01374890: Flow=24.9cfs,Stage=2.31ft,2017-05-01 00:30,Not ranked,CROSS RIVER NEAR CROSS RIVER NY01374821: Flow=31.0cfs,Stage=2.05ft,2017-05-01 00:15,Not ranked,TITICUS RIVER AT PURDYS STATION NY01374781: Flow=18.0cfs,Stage=2.04ft,2017-05-01 00:30,Not ranked,TITICUS RIVER BELOW JUNE ROAD AT SALEM CENTER NY01374531: Flow=72.0cfs,Stage=1.79ft,2017-05-01 01:00,Not ranked,EAST BRANCH CROTON RIVER NEAR CROTON FALLS NY01374505: Flow=146cfs,Stage=3.59ft,2017-05-01 00:30,Not ranked,EAST BRANCH CROTON RIVER AT BREWSTER NY01212500: Flow=36.1cfs,Stage=2.41ft,2017-05-01 02:00,Not ranked,BYRAM RIVER AT PEMBERWICK, CT01209901: Flow=37.6cfs,Stage=1.78ft,2017-05-01 01:45,Not ranked,RIPPOWAM RIVER AT STAMFORD, CT.01209788: Stage=4.35ft,2017-05-01 02:00,Not ranked,STAMFORD HURRICANE BARRIER AT STAMFORD, CT01209761: Flow=2.06cfs,Stage=1.99ft,2017-05-01 02:00,Not ranked,FIVEMILE RIVER NEAR NEW CANAAN, CT01209510: Stage=2.89ft,2017-05-01 01:54,Not ranked,SAUGATUCK RIVER AT ROUTE 1 AT WESTPORT, CT01209105: Flow=11.1cfs,Stage=2.61ft,2017-05-01 01:00,Not ranked,ASPETUCK RIVER AT ASPETUCK, CT01209005: Flow=53.6cfs,Stage=3.04ft,2017-05-01 01:45,Not ranked,SAUGATUCK R BELOW SAUGATUCK RES NR LYONS PLAIN, CT01208882: Stage=-0.77ft,2016-09-09 08:42,Not ranked,ASH CREEK AT FAIRFIELD AVE NEAR BLACK ROCK, CT01203805: Flow=35.9cfs,Stage=2.24ft,2017-05-01 01:15,Not ranked,WEEKEEPEEMEE RIVER AT HOTCHKISSVILLE, CT01203510: Flow=43.8cfs,Stage=4.01ft,2017-05-01 02:00,Not ranked,POOTATUCK RIVER AT SANDY HOOK, CT01202501: Flow=45.2cfs,Stage=2.57ft,2017-05-01 01:15,Not ranked,SHEPAUG RIVER AT PETERS DAM AT WOODVILLE, CT01201487: Flow=107cfs,Stage=7.13ft,2017-05-01 01:45,Not ranked,STILL RIVER AT ROUTE 7 AT BROOKFIELD CENTER, CT01200600: 2016-04-16 18:15,Not ranked,HOUSATONIC RIVER NEAR NEW MILFORD, CT01196561: Flow=22.9cfs,Stage=1.81ft,2017-05-01 01:15,Not ranked,MUDDY RIVER NEAR EAST WALLINGFORD, CT01195490: Flow=27.5cfs,Stage=3.25ft,2017-05-01 01:45,Not ranked,QUINNIPIAC RIVER AT SOUTHINGTON, CT01194815: Stage=1.56ft,2017-05-01 01:42,Not ranked,CONNECTICUT RIVER NR BRIDGE ST NR OLD SAYBROOK, CT01194796: Stage=2.73ft,2017-05-01 01:55,Not ranked,CONNECTICUT RIVER AT OLD LYME, CT01194750: Stage=2.31ft,2017-05-01 01:20,Not ranked,CONNECTICUT RIVER AT ESSEX, CT01193050: Flow=28800cfs,2017-05-01 01:45,Stage=3.10ft,2017-05-01 01:55:00,Floodstage=7ft,Not ranked,CONNECTICUT RIVER AT MIDDLE HADDAM, CT01190070: Stage=7.16ft,Floodstage=16ft,2017-05-01 01:30,Not ranked,CONNECTICUT RIVER AT HARTFORD, CT01189213: Stage=3.36ft,Floodstage=12ft,2017-05-01 01:30,Not ranked,FARMINGTON RIVER AT SIMSBURY, CT01125490: Flow=75.7cfs,Stage=2.21ft,2017-05-01 02:00,Not ranked,LITTLE RIVER AT HARRISVILLE, CT01125100: Flow=204cfs,Stage=7.48ft,2017-05-01 01:15,Not ranked,FRENCH RIVER AT NORTH GROSVENORDALE, CT01121330: Flow=36.1cfs,Stage=3.60ft,2017-05-01 01:15,Not ranked,FENTON RIVER AT MANSFIELD, CT01120790: Flow=130cfs,Stage=3.21ft,2017-05-01 02:00,Not ranked,NATCHAUG RIVER AT MARCY RD. NEAR CHAPLIN, CT01119382: Flow=146cfs,Stage=1.70ft,2017-05-01 01:15,Not ranked,WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT01115187: Flow=30.3cfs,Stage=1.89ft,2017-05-01 01:00,Not ranked,PONAGANSET RIVER AT SOUTH FOSTER, RIGo to WaterWatch (offsite) for a larger map with additional options
[color code for] High
[color code for] > 90th percentile
[color code for] 76th - 90th percentile
[color code for] 25th - 75th percentile
[color code for] 10th - 24th percentile
[color code for] < 10th percentile
[color code for] Low
[color code for] Not ranked
The colored dots on this map depict streamflow conditions as a percentile, which is computed from the period of record for the current day of the year. Only stations with at least 30 years of record are used.
The gray circles indicate other stations that were not ranked in percentiles either because they have fewer than 30 years of record or because they report parameters other than streamflow. Some stations, for example, measure stage only.

Statewide Streamflow Table

Current data typically are recorded at 15- to 60-minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events. Data from current sites are relayed to USGS offices via satellite, telephone, and/or radio telemetry and are available for viewing within minutes of arrival.

All real-time data are provisional and subject to revision.

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