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Hydrograph River at a Glance Download
Housatonic River at Gaylordsville Stage (ft)Flow (cfs)Highest Observation: 7.59 ft at 3:45PM Mar 25, 2024Observed: 7.58 ft at 4:00PM Mar 25, 2024Observed: 7.57 ft at 4:15PM Mar 25, 2024Observed: 7.57 ft at 4:30PM Mar 25, 2024Observed: 7.58 ft at 4:45PM Mar 25, 2024Observed: 7.58 ft at 5:00PM Mar 25, 2024Observed: 7.57 ft at 5:15PM Mar 25, 2024Observed: 7.57 ft at 5:30PM Mar 25, 2024Observed: 7.57 ft at 5:45PM Mar 25, 2024Observed: 7.55 ft at 6:00PM Mar 25, 2024Observed: 7.54 ft at 6:15PM Mar 25, 2024Observed: 7.54 ft at 6:30PM Mar 25, 2024Observed: 7.53 ft at 6:45PM Mar 25, 2024Observed: 7.53 ft at 7:00PM Mar 25, 2024Observed: 7.51 ft at 7:15PM Mar 25, 2024Observed: 7.49 ft at 7:30PM Mar 25, 2024Observed: 7.46 ft at 7:45PM Mar 25, 2024Observed: 7.49 ft at 8:00PM Mar 25, 2024Observed: 7.49 ft at 8:15PM Mar 25, 2024Observed: 7.48 ft at 8:30PM Mar 25, 2024Observed: 7.46 ft at 8:45PM Mar 25, 2024Observed: 7.42 ft at 9:00PM Mar 25, 2024Observed: 7.42 ft at 9:15PM Mar 25, 2024Observed: 7.42 ft at 9:30PM Mar 25, 2024Observed: 7.42 ft at 9:45PM Mar 25, 2024Observed: 7.41 ft at 10:00PM Mar 25, 2024Observed: 7.39 ft at 10:15PM Mar 25, 2024Observed: 7.38 ft at 10:30PM Mar 25, 2024Observed: 7.41 ft at 10:45PM Mar 25, 2024Observed: 7.41 ft at 11:00PM Mar 25, 2024Observed: 7.37 ft at 11:15PM Mar 25, 2024Observed: 7.39 ft at 11:30PM Mar 25, 2024Observed: 7.39 ft at 11:45PM Mar 25, 2024Observed: 7.37 ft at 12:00AM Mar 26, 2024Observed: 7.37 ft at 12:15AM Mar 26, 2024Observed: 7.38 ft at 12:30AM Mar 26, 2024Observed: 7.37 ft at 12:45AM Mar 26, 2024Observed: 7.36 ft at 1:00AM Mar 26, 2024Observed: 7.34 ft at 1:15AM Mar 26, 2024Observed: 7.36 ft at 1:30AM Mar 26, 2024Observed: 7.32 ft at 1:45AM Mar 26, 2024Observed: 7.33 ft at 2:00AM Mar 26, 2024Observed: 7.34 ft at 2:15AM Mar 26, 2024Observed: 7.33 ft at 2:30AM Mar 26, 2024Observed: 7.31 ft at 2:45AM Mar 26, 2024Observed: 7.33 ft at 3:00AM Mar 26, 2024Observed: 7.27 ft at 3:15AM Mar 26, 2024Observed: 7.28 ft at 3:30AM Mar 26, 2024Observed: 7.3 ft at 3:45AM Mar 26, 2024Observed: 7.27 ft at 4:00AM Mar 26, 2024Observed: 7.29 ft at 4:15AM Mar 26, 2024Observed: 7.26 ft at 4:30AM Mar 26, 2024Observed: 7.28 ft at 4:45AM Mar 26, 2024Observed: 7.26 ft at 5:00AM Mar 26, 2024Observed: 7.25 ft at 5:15AM Mar 26, 2024Observed: 7.25 ft at 5:30AM Mar 26, 2024Observed: 7.25 ft at 5:45AM Mar 26, 2024Observed: 7.22 ft at 6:00AM Mar 26, 2024Observed: 7.2 ft at 6:15AM Mar 26, 2024Observed: 7.23 ft at 6:30AM Mar 26, 2024Observed: 7.22 ft at 6:45AM Mar 26, 2024Observed: 7.17 ft at 7:00AM Mar 26, 2024Observed: 7.21 ft at 7:15AM Mar 26, 2024Observed: 7.17 ft at 7:30AM Mar 26, 2024Observed: 7.18 ft at 7:45AM Mar 26, 2024Observed: 7.18 ft at 8:00AM Mar 26, 2024Observed: 7.15 ft at 8:15AM Mar 26, 2024Observed: 7.14 ft at 8:30AM Mar 26, 2024Observed: 7.15 ft at 8:45AM Mar 26, 2024Observed: 7.12 ft at 9:00AM Mar 26, 2024Observed: 7.15 ft at 9:15AM Mar 26, 2024Observed: 7.12 ft at 9:30AM Mar 26, 2024Observed: 7.11 ft at 9:45AM Mar 26, 2024Observed: 7.11 ft at 10:00AM Mar 26, 2024Observed: 7.14 ft at 10:15AM Mar 26, 2024Observed: 7.13 ft at 10:30AM Mar 26, 2024Observed: 7.1 ft at 10:45AM Mar 26, 2024Observed: 7.11 ft at 11:00AM Mar 26, 2024Observed: 7.06 ft at 11:15AM Mar 26, 2024Observed: 7.09 ft at 11:30AM Mar 26, 2024Observed: 7.09 ft at 11:45AM Mar 26, 2024Observed: 7.07 ft at 12:00PM Mar 26, 2024Observed: 7.08 ft at 12:15PM Mar 26, 2024Observed: 7.03 ft at 12:30PM Mar 26, 2024Observed: 7.05 ft at 12:45PM Mar 26, 2024Observed: 7.06 ft at 1:00PM Mar 26, 2024Observed: 7.04 ft at 1:15PM Mar 26, 2024Observed: 7.05 ft at 1:30PM Mar 26, 2024Observed: 7.02 ft at 1:45PM Mar 26, 2024Observed: 7.01 ft at 2:00PM Mar 26, 2024Observed: 7 ft at 2:15PM Mar 26, 2024Observed: 7.02 ft at 2:30PM Mar 26, 2024Observed: 7 ft at 2:45PM Mar 26, 2024Observed: 7.02 ft at 3:00PM Mar 26, 2024Observed: 6.96 ft at 3:15PM Mar 26, 2024Observed: 6.97 ft at 3:30PM Mar 26, 2024Observed: 6.96 ft at 3:45PM Mar 26, 2024Observed: 6.98 ft at 4:00PM Mar 26, 2024Observed: 6.95 ft at 4:15PM Mar 26, 2024Observed: 6.94 ft at 4:30PM Mar 26, 2024Observed: 6.96 ft at 4:45PM Mar 26, 2024Observed: 6.96 ft at 5:00PM Mar 26, 2024Observed: 6.92 ft at 5:15PM Mar 26, 2024Observed: 6.93 ft at 5:30PM Mar 26, 2024Observed: 6.92 ft at 5:45PM Mar 26, 2024Observed: 6.94 ft at 6:00PM Mar 26, 2024Observed: 6.91 ft at 6:15PM Mar 26, 2024Observed: 6.88 ft at 6:30PM Mar 26, 2024Observed: 6.9 ft at 6:45PM Mar 26, 2024Observed: 6.88 ft at 7:00PM Mar 26, 2024Observed: 6.88 ft at 7:15PM Mar 26, 2024Observed: 6.88 ft at 7:30PM Mar 26, 2024Observed: 6.86 ft at 7:45PM Mar 26, 2024Observed: 6.87 ft at 8:00PM Mar 26, 2024Observed: 6.86 ft at 8:15PM Mar 26, 2024Observed: 6.85 ft at 8:30PM Mar 26, 2024Observed: 6.84 ft at 8:45PM Mar 26, 2024Observed: 6.84 ft at 9:00PM Mar 26, 2024Observed: 6.82 ft at 9:15PM Mar 26, 2024Observed: 6.82 ft at 9:30PM Mar 26, 2024Observed: 6.82 ft at 9:45PM Mar 26, 2024Observed: 6.82 ft at 10:00PM Mar 26, 2024Observed: 6.81 ft at 10:15PM Mar 26, 2024Observed: 6.83 ft at 10:30PM Mar 26, 2024Observed: 6.81 ft at 10:45PM Mar 26, 2024Observed: 6.79 ft at 11:00PM Mar 26, 2024Observed: 6.78 ft at 11:15PM Mar 26, 2024Observed: 6.75 ft at 11:30PM Mar 26, 2024Observed: 6.76 ft at 11:45PM Mar 26, 2024Observed: 6.75 ft at 12:00AM Mar 27, 2024Observed: 6.77 ft at 12:15AM Mar 27, 2024Observed: 6.75 ft at 12:30AM Mar 27, 2024Observed: 6.75 ft at 12:45AM Mar 27, 2024Observed: 6.74 ft at 1:00AM Mar 27, 2024Observed: 6.73 ft at 1:15AM Mar 27, 2024Observed: 6.73 ft at 1:30AM Mar 27, 2024Observed: 6.72 ft at 1:45AM Mar 27, 2024Observed: 6.72 ft at 2:00AM Mar 27, 2024Observed: 6.71 ft at 2:15AM Mar 27, 2024Observed: 6.71 ft at 2:30AM Mar 27, 2024Observed: 6.7 ft at 2:45AM Mar 27, 2024Observed: 6.69 ft at 3:00AM Mar 27, 2024Observed: 6.67 ft at 3:15AM Mar 27, 2024Observed: 6.69 ft at 3:30AM Mar 27, 2024Observed: 6.67 ft at 3:45AM Mar 27, 2024Observed: 6.69 ft at 4:00AM Mar 27, 2024Observed: 6.67 ft at 4:15AM Mar 27, 2024Observed: 6.67 ft at 4:16AM Mar 27, 2024Observed: 6.66 ft at 4:30AM Mar 27, 2024Observed: 6.66 ft at 4:45AM Mar 27, 2024Observed: 6.65 ft at 5:00AM Mar 27, 2024Observed: 6.66 ft at 5:15AM Mar 27, 2024Observed: 6.65 ft at 5:30AM Mar 27, 2024Observed: 6.64 ft at 5:45AM Mar 27, 2024Observed: 6.63 ft at 6:00AM Mar 27, 2024Observed: 6.62 ft at 6:15AM Mar 27, 2024Observed: 6.59 ft at 6:30AM Mar 27, 2024Observed: 6.6 ft at 6:45AM Mar 27, 2024Observed: 6.58 ft at 7:00AM Mar 27, 2024Observed: 6.58 ft at 7:15AM Mar 27, 2024Observed: 6.58 ft at 7:30AM Mar 27, 2024Observed: 6.55 ft at 7:45AM Mar 27, 2024Observed: 6.56 ft at 8:00AM Mar 27, 2024Observed: 6.57 ft at 8:15AM Mar 27, 2024Observed: 6.54 ft at 8:30AM Mar 27, 2024Observed: 6.55 ft at 8:45AM Mar 27, 2024Observed: 6.55 ft at 9:00AM Mar 27, 2024Observed: 6.52 ft at 9:15AM Mar 27, 2024Observed: 6.53 ft at 9:30AM Mar 27, 2024Observed: 6.54 ft at 9:45AM Mar 27, 2024Observed: 6.52 ft at 10:00AM Mar 27, 2024Observed: 6.53 ft at 10:15AM Mar 27, 2024Observed: 6.51 ft at 10:30AM Mar 27, 2024Observed: 6.5 ft at 10:45AM Mar 27, 2024Observed: 6.49 ft at 11:00AM Mar 27, 2024Observed: 6.5 ft at 11:15AM Mar 27, 2024Observed: 6.49 ft at 11:30AM Mar 27, 2024Observed: 6.48 ft at 11:45AM Mar 27, 2024Observed: 6.46 ft at 12:00PM Mar 27, 2024Observed: 6.47 ft at 12:15PM Mar 27, 2024Observed: 6.45 ft at 12:30PM Mar 27, 2024Observed: 6.46 ft at 12:45PM Mar 27, 2024Observed: 6.45 ft at 1:00PM Mar 27, 2024Observed: 6.45 ft at 1:15PM Mar 27, 2024Observed: 6.42 ft at 1:30PM Mar 27, 2024Observed: 6.43 ft at 1:45PM Mar 27, 2024Observed: 6.41 ft at 2:00PM Mar 27, 2024Observed: 6.42 ft at 2:15PM Mar 27, 2024Observed: 6.38 ft at 2:30PM Mar 27, 2024Observed: 6.39 ft at 2:45PM Mar 27, 2024Observed: 6.37 ft at 3:00PM Mar 27, 2024Observed: 6.38 ft at 3:15PM Mar 27, 2024Observed: 6.37 ft at 3:30PM Mar 27, 2024Observed: 6.38 ft at 3:45PM Mar 27, 2024Observed: 6.37 ft at 4:00PM Mar 27, 2024Observed: 6.36 ft at 4:15PM Mar 27, 2024Observed: 6.36 ft at 4:30PM Mar 27, 2024Observed: 6.35 ft at 4:45PM Mar 27, 2024Observed: 6.34 ft at 5:00PM Mar 27, 2024Observed: 6.33 ft at 5:15PM Mar 27, 2024Observed: 6.32 ft at 5:30PM Mar 27, 2024Observed: 6.32 ft at 5:45PM Mar 27, 2024Observed: 6.33 ft at 6:00PM Mar 27, 2024Observed: 6.32 ft at 6:15PM Mar 27, 2024Observed: 6.32 ft at 6:30PM Mar 27, 2024Observed: 6.3 ft at 6:45PM Mar 27, 2024Observed: 6.3 ft at 7:00PM Mar 27, 2024Observed: 6.27 ft at 7:15PM Mar 27, 2024Observed: 6.28 ft at 7:30PM Mar 27, 2024Observed: 6.29 ft at 7:45PM Mar 27, 2024Observed: 6.29 ft at 8:00PM Mar 27, 2024Observed: 6.27 ft at 8:15PM Mar 27, 2024Observed: 6.28 ft at 8:30PM Mar 27, 2024Observed: 6.26 ft at 8:45PM Mar 27, 2024Observed: 6.24 ft at 9:00PM Mar 27, 2024Observed: 6.25 ft at 9:15PM Mar 27, 2024Observed: 6.26 ft at 9:30PM Mar 27, 2024Observed: 6.24 ft at 9:45PM Mar 27, 2024Observed: 6.25 ft at 10:00PM Mar 27, 2024Observed: 6.24 ft at 10:15PM Mar 27, 2024Observed: 6.24 ft at 10:30PM Mar 27, 2024Observed: 6.24 ft at 10:45PM Mar 27, 2024Observed: 6.23 ft at 11:00PM Mar 27, 2024Observed: 6.22 ft at 11:15PM Mar 27, 2024Observed: 6.2 ft at 11:30PM Mar 27, 2024Observed: 6.2 ft at 11:45PM Mar 27, 2024Observed: 6.21 ft at 12:00AM Mar 28, 2024Observed: 6.19 ft at 12:15AM Mar 28, 2024Observed: 6.2 ft at 12:30AM Mar 28, 2024Observed: 6.19 ft at 12:45AM Mar 28, 2024Observed: 6.17 ft at 1:00AM Mar 28, 2024Observed: 6.19 ft at 1:15AM Mar 28, 2024Observed: 6.18 ft at 1:30AM Mar 28, 2024Observed: 6.18 ft at 1:45AM Mar 28, 2024Observed: 6.19 ft at 2:00AM Mar 28, 2024Observed: 6.17 ft at 2:15AM Mar 28, 2024Observed: 6.17 ft at 2:30AM Mar 28, 2024Observed: 6.19 ft at 2:45AM Mar 28, 2024Observed: 6.18 ft at 3:00AM Mar 28, 2024Observed: 6.17 ft at 3:15AM Mar 28, 2024Observed: 6.16 ft at 3:30AM Mar 28, 2024Observed: 6.19 ft at 3:45AM Mar 28, 2024Observed: 6.19 ft at 4:00AM Mar 28, 2024Observed: 6.18 ft at 4:15AM Mar 28, 2024Observed: 6.18 ft at 4:30AM Mar 28, 2024Observed: 6.18 ft at 4:45AM Mar 28, 2024Observed: 6.19 ft at 5:00AM Mar 28, 2024Observed: 6.19 ft at 5:15AM Mar 28, 2024Observed: 6.2 ft at 5:30AM Mar 28, 2024Observed: 6.2 ft at 5:45AM Mar 28, 2024Observed: 6.2 ft at 6:00AM Mar 28, 2024Observed: 6.2 ft at 6:15AM Mar 28, 2024Observed: 6.18 ft at 6:30AM Mar 28, 2024Observed: 6.21 ft at 6:45AM Mar 28, 2024Observed: 6.22 ft at 7:00AM Mar 28, 2024Observed: 6.22 ft at 7:15AM Mar 28, 2024Observed: 6.23 ft at 7:30AM Mar 28, 2024Observed: 6.23 ft at 7:45AM Mar 28, 2024Observed: 6.22 ft at 8:00AM Mar 28, 2024Observed: 6.22 ft at 8:15AM Mar 28, 2024Observed: 6.23 ft at 8:30AM Mar 28, 2024Observed: 6.26 ft at 8:45AM Mar 28, 2024Observed: 6.26 ft at 9:00AM Mar 28, 2024Observed: 6.26 ft at 9:15AM Mar 28, 2024Observed: 6.28 ft at 9:30AM Mar 28, 2024Observed: 6.27 ft at 9:45AM Mar 28, 2024Observed: 6.26 ft at 10:00AM Mar 28, 2024Observed: 6.28 ft at 10:15AM Mar 28, 2024Observed: 6.29 ft at 10:30AM Mar 28, 2024Observed: 6.3 ft at 10:45AM Mar 28, 2024Observed: 6.3 ft at 11:00AM Mar 28, 2024Observed: 6.3 ft at 11:15AM Mar 28, 2024Observed: 6.28 ft at 11:30AM Mar 28, 2024Observed: 6.3 ft at 11:45AM Mar 28, 2024Observed: 6.3 ft at 12:00PM Mar 28, 2024Observed: 6.3 ft at 12:15PM Mar 28, 2024Observed: 6.31 ft at 12:30PM Mar 28, 2024Observed: 6.3 ft at 12:45PM Mar 28, 2024Observed: 6.3 ft at 1:00PM Mar 28, 2024Observed: 6.31 ft at 1:15PM Mar 28, 2024Observed: 6.3 ft at 1:30PM Mar 28, 2024Observed: 6.31 ft at 1:45PM Mar 28, 2024Observed: 6.31 ft at 2:00PM Mar 28, 2024Observed: 6.32 ft at 2:15PM Mar 28, 2024Observed: 6.32 ft at 2:30PM Mar 28, 2024Observed: 6.32 ft at 2:45PM Mar 28, 2024Observed: 6.32 ft at 3:00PM Mar 28, 2024Forecast: 6.7 ft 8:00PM Mar 28, 2024Forecast: 7 ft 2:00AM Mar 29, 2024Highest Forecast: 7.2 ft 8:00AM Mar 29, 2024Highest Forecast: 7.2 ft 2:00PM Mar 29, 2024Highest Forecast: 7.2 ft 8:00PM Mar 29, 2024Forecast: 7.1 ft 2:00AM Mar 30, 2024Forecast: 7 ft 8:00AM Mar 30, 2024Forecast: 6.9 ft 2:00PM Mar 30, 2024Forecast: 6.8 ft 8:00PM Mar 30, 2024Forecast: 6.7 ft 2:00AM Mar 31, 2024Forecast: 6.5 ft 8:00AM Mar 31, 2024USGS--Water Resources of the United StatesGAYC3(plotting HGIRG) Graph Created (3:30PM Mar 28, 2024)ObservedForecast (issued 11:27AM Mar 28)Latest observed value: 6.32 ft at 3:00 PM EDT 28-Mar-2024. Flood Stage is 8 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by reservoir operations.

NOTE: Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.

NOTE: Forecasts for the Housatonic River at Gaylordsville are issued routinely year-round.

Return to Area Map
Upstream Gauge - at Falls Village Upstream Gauge Downstream Gauge Downstream Gauge - at Lake Lillinonah
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 10
Flood Stage: 8
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 18.58 ft on 08/19/1955
(2) 15.22 ft on 05/31/1984
(3) 14.85 ft on 01/01/1949
(4) 14.50 ft on 09/22/1938
(5) 13.75 ft on 03/07/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.32 ft on 01/11/2024 (P)
(2) 10.26 ft on 12/19/2023 (P)
(3) 8.02 ft on 09/30/2023 (P)
(4) 8.35 ft on 07/16/2023 (P)
(5) 10.95 ft on 07/10/2023 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.19 ft on 09/12/2002

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
15 Major flood stage. Water reaches Route 7 at Boardman Bridge.
14 Water reaches the Fedco parking lot and the lower New Milford Foundry.
12 Water reaches the generator floor at Bulls Bridge hydroelectric plant.
10 Moderate flood stage. In New Milford water reaches Spring Street and US Route 7 at Bridge Street is flooded.
9.5 The water reaches businesses on the low side of Spring Street.
8 Flood stage. Water reaches New Milford Foundry and Young's Field Road.
7 The river is close to bankfull.
About This Location Collapse

Latitude: 41.653056° N, Longitude: 73.490278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 236.78 ft 244.78 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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Page last modified: 2-Nov-2020 7:30 PM
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