Connecticut River Water Levels

119 public USGS stream gauges across 5 river basins, updated continuously.

Live water levels for every USGS stream gauge in Connecticut, organized by river basin. Jump to a basin below, or open any gauge for current flow, gauge height, water temperature, and fishing conditions before you go.

Grouped by USGS hydrologic basin (largest first) — every indexed gauge is listed, nothing hidden behind a featured subset.

Connecticut Coastal Connecticut Lower Hudson-Long Island Massachusetts-Rhode Island Coastal Willamette

Search by zip or town on Waderly

Connecticut Coastal

78 USGS gauges in the Connecticut Coastal watershed (HUC 0110).

ASPETUCK RIVER AT ASPETUCK, CT
USGS 01209105
BRIDE BROOK NR EAST LYME, CT
USGS 0112779610
BYRAM RIVER AT PEMBERWICK, CT
USGS 01212500
CT HWY RT-139 Branford, CT
USGS 411759071464901
CT HWY RT-15 STA 370 ORANGE, CT
USGS 411642073025801
CT HWY RT-8 STA 1284 TORRINGTON, CT
USGS 414926073063701
CT RT 15 STA 241 MILFORD, CT
USGS 411500073043801
CT-I-95 STA 338 SB MILFORD, CT
USGS 411420073012101
EAST BRANCH NAUGATUCK RIVER AT TORRINGTON, CONN
USGS 01205700
FARM RIVER AT THE TROLLY MUSEUM AT EAST HAVEN, CT
USGS 411626072514501
FARM RIVER AT TOTOKET ROAD AT TOTOKET, CT
USGS 01195399
FENTON RIVER AT MANSFIELD, CT
USGS 01121330
FIVEMILE RIVER NEAR NEW CANAAN, CT
USGS 01209761
FRENCH RIVER AT NORTH GROSVENORDALE, CT
USGS 01125100
HONEYPOT BROOK AT CREAMERY ROAD AT CHESHIRE, CT
USGS 01196210
HOP BROOK NEAR NAUGATUCK, CT
USGS 01208420
HOUSATONIC R. AT BEACON PT MARINA NEAR SHELTON, CT
USGS 01208760
HOUSATONIC RIVER AT FALLS VILLAGE, CT
USGS 01199000
HOUSATONIC RIVER AT GAYLORDSVILLE, CT
USGS 01200500
HOUSATONIC RIVER AT STEVENSON, CT
USGS 01205500
HOUSATONIC RIVER NEAR NEW MILFORD, CT
USGS 01200600
INDIAN RIVER NEAR CLINTON, CT
USGS 01195100
LATIMER BROOK NR I-95N EXIT 75 NR FLANDERS, CT
USGS 011277905
LITTLE RIVER AT HARRISVILLE, CT
USGS 01125490
LITTLE RIVER NEAR HANOVER, CT
USGS 01123000
MILL RIVER NEAR FAIRFIELD, CT
USGS 01208925
MILL RIVER NEAR HAMDEN, CT
USGS 01196620
MOUNT HOPE RIVER NEAR WARRENVILLE, CT
USGS 01121000
MUDDY RIVER NEAR EAST WALLINGFORD, CT
USGS 01196561
MYSTIC RIVER US RTE I95 BRIDGE NEAR OLD MYSTIC, CT
USGS 412240071574700
NATCHAUG RIVER AT MARCY RD. NEAR CHAPLIN, CT
USGS 01120790
NATCHAUG RIVER AT WILLIMANTIC, CT
USGS 01122000
NAUGATUCK RIVER AT BEACON FALLS, CT
USGS 01208500
NAUGATUCK RIVER AT RTE 118 AT EAST LITCHFIELD, CT
USGS 01205890
NAUGATUCK RIVER AT THOMASTON, CT
USGS 01206900
NAUGATUCK RIVER AT WATERBURY, CT
USGS 01208171
NAUGATUCK RIVER NEAR UNION CITY, CT
USGS 01208350
NONEWAUG RIVER AT MINORTOWN, CT
USGS 01203600
NORWALK R AT MARITIME AQUARIUM NR S NORWALK, CT
USGS 410606073245700
NORWALK RIVER AT FERRY POINT NEAR NORWALK, CT
USGS 410643073243700
NORWALK RIVER AT SOUTH WILTON, CT
USGS 01209700
PAWCATUCK R NR PAWCATUCK,CT.
USGS 01118520
PENDLETON HILL BROOK NEAR CLARKS FALLS, CT
USGS 01118300
POMPERAUG RIVER AT SOUTHBURY, CT
USGS 01204000
POOTATUCK RIVER AT BERKSHIRE
USGS 012035055
POOTATUCK RIVER AT SANDY HOOK, CT
USGS 01203510
POQUONNOCK RIVER AT LONG HILL, CT
USGS 01119001
QUINEBAUG RIVER AT JEWETT CITY, CT
USGS 01127000
QUINEBAUG RIVER AT PUTNAM, CT
USGS 01125500
QUINEBAUG RIVER AT QUINEBAUG, CT
USGS 01124000
QUINEBAUG RIVER AT WEST THOMPSON, CT
USGS 01124151
QUINNIPIAC R NR MERIDEN, CT
USGS 01196222
QUINNIPIAC RIVER AT SOUTHINGTON, CT
USGS 01195490
QUINNIPIAC RIVER AT WALLINGFORD, CT
USGS 01196500
QUINNIPIAC RIVER DS W CENTER ST AT SOUTHINGTON, CT
USGS 01195510
QUINNIPIAC RIVER US RTE 22 AT N HAVEN, CT
USGS 01196528
RIDGEFIELD BROOK AT SHIELDS LANE NR RIDGEFIELD, CT
USGS 012095493
RIPPOWAM RIVER AT STAMFORD, CT.
USGS 01209901
ROOSTER RIVER AT FAIRFIELD, CT
USGS 01208873
SALMON CREEK AT LIME ROCK, CT
USGS 01199050
SASCO BROOK NEAR SOUTHPORT, CT
USGS 01208950
SAUGATUCK R BELOW SAUGATUCK RES NR LYONS PLAIN, CT
USGS 01209005
SAUGATUCK RIVER NEAR REDDING, CT
USGS 01208990
SAUGATUCK RIVER NEAR WESTPORT, CT
USGS 01209500
SAUGATUCK RIVER US RTE 136 NEAR SAUGATUCK, CT
USGS 410724073221001
SHEPAUG R NR ROXBURY, CT
USGS 01203000
SHEPAUG RIVER AT PETERS DAM AT WOODVILLE, CT
USGS 01202501
SHETUCKET RIVER AT TAFTVILLE, CT
USGS 011230695
SHETUCKET RIVER NEAR WILLIMANTIC, CT
USGS 01122500
STILL RIVER AT ROUTE 7 AT BROOKFIELD CENTER, CT
USGS 01201487
W BR NAUGATUCK R AT TORRINGTON, CT.
USGS 01205600
W Thompson Lake at Old W Thompson Rd nr W Thompson
USGS 01124149
WEEKEEPEEMEE RIVER AT HOTCHKISSVILLE, CT
USGS 01203805
WHITFORD BK AT OLD MYSTIC,CT.
USGS 01118700
WHITFORD BROOK BL WILLIAMS BROOK NR OLD MYSTIC, CT
USGS 01118668
WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT
USGS 01119382
WILLIMANTIC RIVER NEAR COVENTRY, CT
USGS 01119500
YANTIC RIVER AT YANTIC, CT
USGS 01127500

Connecticut

28 USGS gauges in the Connecticut watershed (HUC 0108).

BROAD BROOK AT BROAD BROOK, CT
USGS 01184490
BUNNELL BROOK NEAR BURLINGTON, CT
USGS 01188000
COGINCHAUG RIVER AT MIDDLEFIELD, CT
USGS 01192883
CONNECTICUT RIVER AT ESSEX, CT
USGS 01194750
CONNECTICUT RIVER AT HARTFORD, CT
USGS 01190070
CONNECTICUT RIVER AT MIDDLE HADDAM, CT
USGS 01193050
CONNECTICUT RIVER AT OLD LYME, CT
USGS 01194796
CONNECTICUT RIVER AT THOMPSONVILLE, CT
USGS 01184000
CONNECTICUT RIVER NR BOAT HOUSE AT MIDDLETOWN, CT
USGS 011929115
CT HWY RT-3W GLASTONBURY, CT
USGS 414329072370601
CT HWY RT-74 VERNON, CT
USGS 415157072291301
EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CT
USGS 01194500
EIGHTMILE RIVER AT NORTH PLAIN, CT
USGS 01194000
FARMINGTON RIVER AT TARIFFVILLE, CT
USGS 01189995
FARMINGTON RIVER AT UNIONVILLE, CT
USGS 01188090
HOCKANUM RIVER NEAR EAST HARTFORD, CT
USGS 01192500
HUBBARD RIVER NEAR WEST HARTLAND, CT
USGS 01187300
LYMAN BROOK AT MARLBOROUGH, CT
USGS 01193348
MATTABESSET RIVER AT ROUTE 372 AT EAST BERLIN
USGS 01192704
MUDDY BROOK AT ELLINGTON, UPPER SITE
USGS 011844548
NEPAUG R NR NEPAUG, CT.
USGS 01187800
NORTH BRANCH PARK RIVER AT HARTFORD, CT
USGS 01191000
PEQUABUCK R AT FORESTVILLE, CT.
USGS 01189000
SALMON RIVER NEAR EAST HAMPTON, CT
USGS 01193500
SALMON RIVER US WOLF BROOK NR N WESTCHESTER CT
USGS 01193463
STILL RIVER AT ROBERTSVILLE, CT
USGS 01186500
STONY BROOK NEAR WEST SUFFIELD, CT
USGS 01184100
WEST BRANCH FARMINGTON RIVER AT RIVERTON, CT
USGS 01186000

Lower Hudson-Long Island

10 USGS gauges in the Lower Hudson-Long Island watershed (HUC 0203).

FARM RIVER AT FARM RIVER MARINA NR EAST HAVEN, CT
USGS 411513072512301
HOUSATONIC RIVER NR NELLS ISLAND NR STRATFORD, CT
USGS 01208837
MILL RIVER AT PEQUOT YACHT CLUB AT SOUTHPORT, CT
USGS 410757073165601
MILL RIVER AT SOUTHPORT HARBOR NEAR SOUTHPORT, CT
USGS 410729073171701
MYSTIC HARBOR AT SAFE HARBOR MARINA NR MYSTIC, CT
USGS 412047071580800
MYSTIC RIVER AT RAM ISLAND YACHT CLUB AT NOANK, CT
USGS 411940071590300
NORWALK HARBOR AT THE COVE MARINA NR E NORWALK, CT
USGS 410502073236000
POQUONNOCK RIVER AT BLUFF POINT STATE PARK, CT
USGS 412006072020801
SAUGATUCK RIVER LOWER EMBAYMENT NEAR SAUGATUCK, CT
USGS 410613073215801
THAMES R AT GROTON, CT.
USGS 01127768

Massachusetts-Rhode Island Coastal

2 USGS gauges in the Massachusetts-Rhode Island Coastal watershed (HUC 0109).

PAWCATUCK RIVER SOUTH OF ROUTE 1 AT PAWCATUCK, CT
USGS 01118502
PAWCATUCK RIVER US PAWCATUCK ROCK NR PAWCATUCK, CT
USGS 01118518

Willamette

1 USGS gauge in the Willamette watershed (HUC 1709).

FANNO CREEK AT GREENWAY PARK, NEAR SW PEARSON CT
USGS 452718122474700

Neighboring States

Fishing the border? Check river levels in nearby states:

Massachusetts river levels New York river levels Rhode Island river levels

Frequently Asked Questions

How many public stream gauges does Waderly index in Connecticut?

Waderly currently indexes 119 public USGS stream gauges in Connecticut. Examples on this page include Aspetuck River, Bride Brook, Broad Brook.

What can I find on the Connecticut stream gauges page?

This state hub links to every indexed Waderly gauge page in Connecticut, so you can jump from a statewide view into current flow, gauge height, water temperature, and weather for individual rivers and creeks.

Why use the Connecticut state hub instead of searching one river at a time?

The Connecticut hub is a crawlable index of the full state network. It makes it easier to compare nearby waters, discover smaller creeks you may not search by name, and reach every gauge page from one place.

Waderly supports public stream gauges across all 50 states. This Connecticut page includes the full state index, so search engines and users can reach every gauge from one crawlable hub.

These pages are built from the public USGS stream-gauge network and linked into Waderly's map so anglers, paddlers, and waders can move from a broad state view into specific rivers quickly.