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USGS Current Water Data for Connecticut

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ICE EFFECTS ON STREAMFLOW - During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.

Daily Streamflow Conditions

Select a site to retrieve data and station information.
Stream gage levels in Connecticut, relative to 30 year average. 01118300: Flow=3.0cfs,Stage=1.29ft,2015-02-27 18:45,Low,PENDELTON HILL BROOK NEAR CLARKS FALLS, CT01118000: Flow=63cfs,Stage=2.18ft,2015-02-27 18:15,Low,WOOD RIVER AT HOPE VALLEY, RI01209500: Flow=32cfs,2015-02-27 18:00,<10,SAUGATUCK RIVER NEAR WESTPORT, CT01208950: Flow=6.0cfs,Stage=1.31ft,2015-02-27 18:30,<10,SASCO BROOK NEAR SOUTHPORT, CT01204000: Flow=48cfs,Stage=2.91ft,Floodstage=9ft,2015-02-27 19:00,<10,POMPERAUG RIVER AT SOUTHBURY, CT01200500: Flow=710cfs,Stage=2.63ft,Floodstage=8ft,2015-02-27 18:00,<10,HOUSATONIC RIVER AT GAYLORDSVILLE, CT01192883: Flow=27cfs,Stage=4.94ft,2015-02-27 18:00,<10,COGINCHAUG RIVER AT MIDDLEFIELD, CT01123600: Flow=81cfs,Stage=3.76ft,2015-02-27 18:30,<10,QUINEBAUG R BL WESTVILLE DAM NR SOUTHBRIDGE, MA01208500: Flow=197cfs,Stage=1.91ft,Floodstage=12ft,2015-02-27 18:30,<10,NAUGATUCK RIVER AT BEACON FALLS, CT01196500: Flow=91cfs,Stage=2.78ft,Floodstage=10ft,2015-02-27 18:00,<10,QUINNIPIAC RIVER AT WALLINGFORD, CT01195100: Flow=4.0cfs,Stage=1.88ft,2015-02-27 18:45,<10,INDIAN RIVER NEAR CLINTON, CT01192500: Flow=52cfs,Stage=1.67ft,Floodstage=9ft,2015-02-27 18:30,<10,HOCKANUM RIVER NEAR EAST HARTFORD, CT01118500: Flow=274cfs,Stage=4.63ft,Floodstage=7ft,2015-02-27 18:00,<10,PAWCATUCK RIVER AT WESTERLY, RI01117800: Flow=35cfs,Stage=2.96ft,2015-02-27 18:45,<10,WOOD RIVER NEAR ARCADIA, RI01117500: Flow=121cfs,Stage=2.41ft,Floodstage=5ft,2015-02-27 18:45,<10,PAWCATUCK RIVER AT WOOD RIVER JUNCTION, RI01208925: Flow=22cfs,Stage=1.14ft,2015-02-27 18:00,10-24,MILL RIVER NEAR FAIRFIELD, CT01208873: Flow=6.9cfs,Stage=3.12ft,2015-02-27 19:00,10-24,ROOSTER RIVER AT FAIRFIELD, CT01200000: Flow=154cfs,Stage=1.53ft,Floodstage=9ft,2015-02-27 18:15,10-24,TENMILE RIVER NEAR GAYLORDSVILLE, CT01199000: Flow=474cfs,Stage=2.52ft,Floodstage=7ft,2015-02-27 18:15,10-24,HOUSATONIC RIVER AT FALLS VILLAGE, CT01188000: Flow=3.5cfs,Stage=2.26ft,2015-02-27 18:15,10-24,BUNNELL (BURLINGTON) BROOK NEAR BURLINGTON, CT01187300: Flow=12cfs,Stage=0.83ft,2015-02-27 18:30,10-24,HUBBARD RIVER NEAR WEST HARTLAND, CT01184490: Flow=13cfs,Stage=0.66ft,2015-02-27 18:45,10-24,BROAD BROOK AT BROAD BROOK, CT01184000: Flow=8580cfs,Stage=8.65ft,Floodstage=15ft,2015-02-27 18:30,10-24,CONNECTICUT RIVER AT THOMPSONVILLE, CT01183500: Flow=480cfs,Stage=4.08ft,Floodstage=13ft,2015-02-27 18:30,10-24,WESTFIELD RIVER NEAR WESTFIELD, MA01127000: Flow=765cfs,Stage=6.05ft,Floodstage=17.5ft,2015-02-27 18:30,10-24,QUINEBAUG RIVER AT JEWETT CITY, CT01125000: Flow=78cfs,Stage=5.05ft,2015-02-27 18:30,10-24,FRENCH RIVER AT WEBSTER, MA01124151: Flow=135cfs,Stage=1.18ft,2015-02-27 18:30,10-24,QUINEBAUG RIVER AT WEST THOMPSON, CT01205500: Flow=4210cfs,Stage=6.59ft,Floodstage=11ft,2015-02-27 18:45,25-75,HOUSATONIC RIVER AT STEVENSON, CT01191000: Flow=27cfs,Stage=1.90ft,2015-02-27 18:00,25-75,NORTH BRANCH PARK RIVER AT HARTFORD, CT01186000: Flow=207cfs,Stage=3.98ft,2015-02-27 18:30,25-75,WEST BRANCH FARMINGTON RIVER AT RIVERTON, CT01111300: Flow=26cfs,Stage=3.68ft,2015-02-27 18:15,25-75,NIPMUC RIVER NEAR HARRISVILLE, RI0137449480: Flow=55cfs,Stage=3.22ft,2015-02-27 18:30,Not ranked,EAST BRANCH CROTON RIVER NEAR PUTNAM LAKE NY012112296: Stage=2.27ft,2015-02-27 18:42,Not ranked,GREENWICH HARBOR AT GRASS ISLAND AT GREENWICH, CT012095493: Flow=13cfs,Stage=2.17ft,2015-02-27 18:30,Not ranked,RIDGEFIELD BROOK AT SHIELDS LANE NR RIDGEFIELD, CT012035055: Flow=13cfs,Stage=2.72ft,2015-02-27 18:30,Not ranked,POOTATUCK RIVER AT BERKSHIRE011277905: Stage=2.31ft,2015-02-27 18:15:00,Not ranked,Ice affected,Latimer Brook nr I-95N Exit 75 nr Flanders CT011230695: Flow=589cfs,Stage=5.87ft,2015-02-27 18:00,Not ranked,SHETUCKET RIVER AT TAFTVILLE, CT01374890: Stage=2.05ft,2015-02-27 18:30:00,Not ranked,Ice affected,CROSS RIVER NEAR CROSS RIVER NY01374821: Flow=18cfs,Stage=1.75ft,2015-02-27 18:15,Not ranked,TITICUS RIVER AT PURDYS STATION NY01374781: Flow=10cfs,Stage=1.92ft,2015-02-27 18:30,Not ranked,TITICUS RIVER BELOW JUNE ROAD AT SALEM CENTER NY01374531: Flow=43cfs,Stage=1.68ft,2015-02-27 18:00,Not ranked,EAST BRANCH CROTON RIVER NEAR CROTON FALLS NY01374505: Flow=86cfs,Stage=3.35ft,2015-02-27 18:30,Not ranked,EAST BRANCH CROTON RIVER AT BREWSTER NY01212500: Flow=20cfs,Stage=2.11ft,2015-02-27 18:00,Not ranked,BYRAM RIVER AT PEMBERWICK, CT01209901: Stage=1.61ft,2015-02-27 18:45:00,Not ranked,Ice affected,RIPPOWAM RIVER AT STAMFORD, CT.01209788: Stage=2.87ft,2015-02-27 19:00,Not ranked,STAMFORD HURRICANE BARRIER AT STAMFORD, CT01209761: Not ranked,Ice affected,FIVEMILE RIVER NEAR NEW CANAAN, CT01209700: Stage=1.16ft,2015-02-27 18:30:00,Not ranked,Ice affected,NORWALK RIVER AT SOUTH WILTON, CT01209510: Stage=1.98ft,2015-02-27 18:45,Not ranked,SAUGATUCK RIVER AT ROUTE 1 AT WESTPORT, CT01209105: Flow=1.1cfs,Stage=2.29ft,2015-02-27 18:00,Not ranked,ASPETUCK RIVER AT ASPETUCK, CT01209005: Flow=8.0cfs,Stage=2.44ft,2015-02-27 18:45,Not ranked,SAUGATUCK R BELOW SAUGATUCK RES NR LYONS PLAIN, CT01208990: Stage=1.53ft,2015-02-27 18:00:00,Not ranked,Ice affected,SAUGATUCK RIVER NEAR REDDING, CT01206900: Stage=2.24ft,2015-02-27 18:30:00,Not ranked,Ice affected,NAUGATUCK RIVER AT THOMASTON, CT01203805: Stage=2.54ft,2015-02-27 18:15:00,Not ranked,Ice affected,WEEKEEPEEMEE RIVER AT HOTCHKISSVILLE, CT01203600: Flow=13cfs,Stage=1.43ft,2015-02-27 18:10,Not ranked,NONEWAUG RIVER AT MINORTOWN, CT01203510: Stage=3.53ft,2015-02-27 19:00:00,Not ranked,Ice affected,POOTATUCK RIVER AT SANDY HOOK, CT01202501: Flow=32cfs,Stage=2.28ft,2015-02-27 18:15,Not ranked,SHEPAUG RIVER AT PETERS DAM AT WOODVILLE, CT01201487: Stage=6.67ft,2015-02-27 18:45:00,Not ranked,Ice affected,STILL RIVER AT ROUTE 7 AT BROOKFIELD CENTER, CT01200600: Stage=11.50ft,2015-02-27 18:00,Not ranked,HOUSATONIC RIVER NEAR NEW MILFORD, CT01199050: Stage=1.28ft,2015-02-27 18:00:00,Not ranked,Ice affected,SALMON CREEK AT LIME ROCK, CT01196620: Stage=1.46ft,2015-02-27 18:15:00,Not ranked,Ice affected,MILL RIVER NEAR HAMDEN, CT01196561: Flow=8.1cfs,Stage=1.47ft,2015-02-27 18:15,Not ranked,MUDDY RIVER NEAR EAST WALLINGFORD, CT01195490: Flow=14cfs,Stage=2.95ft,2015-02-27 18:45,Not ranked,QUINNIPIAC RIVER AT SOUTHINGTON, CT01194796: Stage=1.22ft,2015-02-27 18:55,Not ranked,CONNECTICUT RIVER AT OLD LYME, CT01194750: Stage=1.30ft,2015-02-27 18:20,Not ranked,CONNECTICUT RIVER AT ESSEX, CT01194500: Stage=2.13ft,2015-02-27 18:45:00,Not ranked,Ice affected,EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CT01194000: Stage=2.70ft,2015-02-27 18:15:00,Not ranked,Ice affected,EIGHTMILE RIVER AT NORTH PLAIN, CT01193500: Stage=3.26ft,2015-02-27 18:15:00,Not ranked,Ice affected,SALMON RIVER NEAR EAST HAMPTON, CT01193050: 2015-02-27 18:45,Stage=0.54ft,2015-02-27 18:55:00,Floodstage=7ft,Not ranked,CONNECTICUT RIVER AT MIDDLE HADDAM, CT01190070: Stage=3.17ft,Floodstage=16ft,2015-02-27 18:30,Not ranked,CONNECTICUT RIVER AT HARTFORD, CT01189995: Stage=1.85ft,2015-02-27 18:15:00,Floodstage=9ft,Not ranked,Ice affected,FARMINGTON RIVER AT TARIFFVILLE, CT01189213: Stage=3.19ft,2015-02-27 18:30,Not ranked,FARMINGTON RIVER AT SIMSBURY, CT01188090: Stage=5.57ft,2015-02-27 18:30:00,Floodstage=12ft,Not ranked,Ice affected,FARMINGTON RIVER AT UNIONVILLE, CT01186500: Stage=1.93ft,2015-02-27 18:30:00,Not ranked,Ice affected,STILL RIVER AT ROBERTSVILLE, CT01185500: Stage=3.14ft,2015-02-27 18:30:00,Floodstage=8ft,Not ranked,Ice affected,WEST BRANCH FARMINGTON RIVER NEAR NEW BOSTON, MA01184100: Stage=1.55ft,2015-02-27 19:00:00,Not ranked,Ice affected,STONY BROOK NEAR WEST SUFFIELD, CT01127500: Stage=2.49ft,2015-02-27 18:45:00,Floodstage=9ft,Not ranked,Ice affected,YANTIC RIVER AT YANTIC, CT01125500: Stage=2.94ft,2015-02-27 18:30:00,Floodstage=9.5ft,Not ranked,Ice affected,QUINEBAUG RIVER AT PUTNAM, CT01125490: Stage=1.83ft,2015-02-27 19:00:00,Not ranked,Ice affected,LITTLE RIVER AT HARRISVILLE, CT01125100: Stage=7.69ft,2015-02-27 18:15:00,Not ranked,Ice affected,FRENCH RIVER AT NORTH GROSVENORDALE, CT01124000: Stage=3.84ft,2015-02-27 18:00:00,Not ranked,Ice affected,QUINEBAUG RIVER AT QUINEBAUG, CT01123360: Flow=56cfs,Stage=2.79ft,2015-02-27 18:30,Not ranked,QUINEBAUG R BL E BRIMFIELD DAM AT FISKDALE, MA01123000: Stage=1.72ft,2015-02-27 18:15:00,Not ranked,Ice affected,LITTLE RIVER NEAR HANOVER, CT01122500: Stage=2.71ft,2015-02-27 18:30:00,Floodstage=13ft,Not ranked,Ice affected,SHETUCKET RIVER NEAR WILLIMANTIC, CT01122000: Stage=2.06ft,2015-02-27 18:30:00,Not ranked,Ice affected,NATCHAUG RIVER AT WILLIMANTIC, CT01121330: Stage=3.51ft,2015-02-27 18:15:00,Not ranked,Ice affected,FENTON RIVER AT MANSFIELD, CT01121000: Stage=2.05ft,2015-02-27 18:15:00,Floodstage=7ft,Not ranked,Ice affected,MOUNT HOPE RIVER NEAR WARRENVILLE, CT01120790: Stage=2.99ft,2015-02-27 19:00:00,Not ranked,Ice affected,NATCHAUG RIVER AT MARCY RD. NEAR CHAPLIN, CT01119500: Stage=3.57ft,2015-02-27 18:15:00,Floodstage=8ft,Not ranked,Ice affected,WILLIMANTIC RIVER NEAR COVENTRY, CT01119382: Stage=1.95ft,2015-02-27 18:15:00,Not ranked,Ice affected,WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT01115187: Flow=32cfs,Stage=1.85ft,2015-02-27 18:00,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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