A small USGS stream gaging station with an antenna on its roof under a cloudy evening sky

Check a river’s flow.

Search any USGS stream gauge by river or station name, by state, or near you. Each card shows the latest flow and how it compares with the normal range for today’s date; open a gauge for the full picture: trend, water temperature and what it means for trout, safety and the official NWS flood stage.

Flow rate checkerSwitch tool

Your browser will ask before sharing your location. It is used once, rounded to about a kilometre, to list gauges within 30 miles, and is not stored.

4 USGS gauges near your location (within 30 miles)

PECONIC RIVER AT RIVERHEAD NY

USGS 01304500

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 18.2 ft³/s
Gauge height: 0.33 ft

Below normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:00 PM EST	18.2	0.33
Nov 5, 7:00 PM EST	18.2	0.33
Nov 5, 6:00 PM EST	18.2	0.33
Nov 5, 5:00 PM EST	18.2	0.33
Nov 5, 4:00 PM EST	18.2	0.33
Nov 5, 3:00 PM EST	18.2	0.33
Nov 5, 2:00 PM EST	18.2	0.33
Nov 5, 1:00 PM EST	18.2	0.33
Nov 5, 12:00 PM EST	18.2	0.33
Nov 5, 11:00 AM EST	17.2	0.32
Nov 5, 10:00 AM EST	17.2	0.32
Nov 5, 9:00 AM EST	18.2	0.33
Nov 5, 8:00 AM EST	17.2	0.32
Nov 5, 7:00 AM EST	17.2	0.32
Nov 5, 6:00 AM EST	17.2	0.32
Nov 5, 5:00 AM EST	17.2	0.32
Nov 5, 4:00 AM EST	17.2	0.32
Nov 5, 3:00 AM EST	17.2	0.32
Nov 5, 2:00 AM EST	17.2	0.32
Nov 5, 1:00 AM EST	17.2	0.32
Nov 5, 12:00 AM EST	17.2	0.32
Nov 4, 11:00 PM EST	17.2	0.32
Nov 4, 10:00 PM EST	17.2	0.32
Nov 4, 9:00 PM EST	17.2	0.32
Nov 4, 8:00 PM EST	17.2	0.32
Nov 4, 7:00 PM EST	17.2	0.32
Nov 4, 6:00 PM EST	17.2	0.32

Reading Nov 5, 8:00 PM EST · checked 9:02 PM EST

Open full screen USGS

22.5 miles away in a straight line

BRIDE BROOK NR EAST LYME, CT

USGS 0112779610

Limited data: Not enough data: no water temperature or flow statistics here

No water temperature, flow statistics here.

Discharge: 2.05 ft³/s
Gauge height: 1.64 ft

Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:45 PM EST	2.05	1.64
Nov 5, 7:45 PM EST	2.05	1.64
Nov 5, 6:45 PM EST	2.05	1.64
Nov 5, 5:45 PM EST	2.05	1.64
Nov 5, 4:45 PM EST	2.05	1.64
Nov 5, 3:45 PM EST	2.05	1.64
Nov 5, 2:45 PM EST	2.05	1.64
Nov 5, 1:45 PM EST	2.05	1.64
Nov 5, 12:45 PM EST	2.05	1.64
Nov 5, 11:45 AM EST	2.05	1.64
Nov 5, 10:45 AM EST	2.05	1.64
Nov 5, 9:45 AM EST	2.13	1.65
Nov 5, 8:45 AM EST	2.05	1.64
Nov 5, 7:45 AM EST	2.05	1.64
Nov 5, 6:45 AM EST	2.05	1.64
Nov 5, 5:45 AM EST	2.05	1.64
Nov 5, 4:45 AM EST	2.05	1.64
Nov 5, 3:45 AM EST	2.05	1.64
Nov 5, 2:45 AM EST	2.05	1.64
Nov 5, 1:45 AM EST	2.05	1.64
Nov 5, 12:45 AM EST	2.05	1.64
Nov 4, 11:45 PM EST	2.05	1.64
Nov 4, 10:45 PM EST	2.05	1.64
Nov 4, 9:45 PM EST	2.05	1.64
Nov 4, 8:45 PM EST	2.05	1.64
Nov 4, 7:45 PM EST	2.05	1.64
Nov 4, 6:45 PM EST	2.05	1.64

INDIAN RIVER NEAR CLINTON, CT

USGS 01195100

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 2.47 ft³/s
Gauge height: 1.69 ft

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:45 PM EST	2.47	1.69
Nov 5, 7:45 PM EST	2.47	1.69
Nov 5, 6:45 PM EST	2.47	1.69
Nov 5, 5:45 PM EST	2.47	1.69
Nov 5, 4:45 PM EST	2.47	1.69
Nov 5, 3:45 PM EST	2.47	1.69
Nov 5, 2:45 PM EST	2.47	1.69
Nov 5, 1:45 PM EST	2.47	1.69
Nov 5, 12:45 PM EST	2.47	1.69
Nov 5, 11:45 AM EST	2.47	1.69
Nov 5, 10:45 AM EST	2.47	1.69
Nov 5, 9:45 AM EST	2.62	1.7
Nov 5, 8:45 AM EST	2.62	1.7
Nov 5, 7:45 AM EST	2.62	1.7
Nov 5, 6:45 AM EST	2.77	1.71
Nov 5, 5:45 AM EST	2.77	1.71
Nov 5, 4:45 AM EST	2.77	1.71
Nov 5, 3:45 AM EST	2.92	1.72
Nov 5, 2:45 AM EST	2.77	1.71
Nov 5, 1:45 AM EST	2.77	1.71
Nov 5, 12:45 AM EST	2.77	1.71
Nov 4, 11:45 PM EST	2.77	1.71
Nov 4, 10:45 PM EST	2.77	1.71
Nov 4, 9:45 PM EST	2.77	1.71
Nov 4, 8:45 PM EST	2.62	1.7
Nov 4, 7:45 PM EST	2.62	1.7
Nov 4, 6:45 PM EST	2.62	1.7

POQUONNOCK RIVER AT LONG HILL, CT

USGS 01119001

Limited data: Not enough data: no water temperature or flow statistics here

No water temperature, flow statistics here.

Discharge: 3.41 ft³/s
Gauge height: 5.23 ft

Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:30 PM EST	3.41	5.23
Nov 5, 7:30 PM EST	3.53	5.24
Nov 5, 6:30 PM EST	3.65	5.25
Nov 5, 5:30 PM EST	3.65	5.25
Nov 5, 4:30 PM EST	3.53	5.24
Nov 5, 3:30 PM EST	3.53	5.24
Nov 5, 2:30 PM EST	3.53	5.24
Nov 5, 1:30 PM EST	3.41	5.23
Nov 5, 12:30 PM EST	3.41	5.23
Nov 5, 11:30 AM EST	3.3	5.22
Nov 5, 10:30 AM EST	3.3	5.22
Nov 5, 9:30 AM EST	3.41	5.23
Nov 5, 8:30 AM EST	3.41	5.23
Nov 5, 7:30 AM EST	3.41	5.23
Nov 5, 6:30 AM EST	3.41	5.23
Nov 5, 5:30 AM EST	3.41	5.23
Nov 5, 4:30 AM EST	3.3	5.22
Nov 5, 3:30 AM EST	3.41	5.23
Nov 5, 2:30 AM EST	3.41	5.23
Nov 5, 1:30 AM EST	3.3	5.22
Nov 5, 12:30 AM EST	3.3	5.22
Nov 4, 11:30 PM EST	3.3	5.22
Nov 4, 10:30 PM EST	3.3	5.22
Nov 4, 9:30 PM EST	3.3	5.22
Nov 4, 8:30 PM EST	3.3	5.22
Nov 4, 7:30 PM EST	3.3	5.22
Nov 4, 6:30 PM EST	3.41	5.23

Checked Nov 5, 9:02 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.

PECONIC RIVER AT RIVERHEAD NY
USGS 01304500 · NY · live flow · gauge height · 22.5 mi
Reading the gauge…
BRIDE BROOK NR EAST LYME, CT
USGS 0112779610 · CT · live flow · gauge height · 22.8 mi
Reading the gauge…
INDIAN RIVER NEAR CLINTON, CT
USGS 01195100 · CT · live flow · gauge height · 25.5 mi
Reading the gauge…
POQUONNOCK RIVER AT LONG HILL, CT
USGS 01119001 · CT · live flow · gauge height · 27.3 mi
Reading the gauge…

Quick picks: our 2,852 waters by state

Each state opens its USGS gauges and our water pages there; a water opens the live cards for its gauges, or the NOAA tides for flats and surf.

Search covers 11,178 USGS stream gauges that reported discharge, gauge height or water temperature in the 183 days before 2026-10-23 (USGS series catalog); readings are fetched live when a gauge is shown.

Where these numbers come from

Discharge, gauge height, water temperature and water quality: U.S. Geological Survey readings (provisional, can be revised), cached for 15 minutes. Where USGS publishes a gauge’s flow only once a day, the latest daily mean is shown with its date.
Normal range: the 25th to 75th percentile of daily mean flow for the same calendar day over the gauge’s record (USGS daily statistics), classed as USGS does (hyswap).
Temperature guidance for trout quotes the gauge’s own state fish and wildlife agency; where we found none, it says so and quotes federal guidance (National Park Service, U.S. Fish and Wildlife Service). Cold-water safety quotes the NWS; dissolved oxygen and pH are read against EPA criteria. Each line names its source.
Flood stage and forecasts: the National Weather Service’s National Water Prediction Service and its Turn Around Don’t Drown guidance. Tides: NOAA Tides & Currents.

General guidance, not a fishing forecast, a safety guarantee or a statement about access. Planning a trip? The trip planner shows these readings on every day you fish a water.