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Hydrograph River at a Glance Download
Housatonic River at Gaylordsville Stage (ft)Flow (cfs)Observed: 6.55 ft at 10:30PM May 06, 2021Observed: 6.55 ft at 10:45PM May 06, 2021Observed: 6.55 ft at 11:00PM May 06, 2021Highest Observation: 6.56 ft at 11:15PM May 06, 2021Observed: 6.52 ft at 11:30PM May 06, 2021Observed: 6.55 ft at 11:45PM May 06, 2021Observed: 6.54 ft at 12:00AM May 07, 2021Observed: 6.55 ft at 12:15AM May 07, 2021Observed: 6.54 ft at 12:30AM May 07, 2021Highest Observation: 6.56 ft at 12:45AM May 07, 2021Observed: 6.55 ft at 1:00AM May 07, 2021Observed: 6.55 ft at 1:15AM May 07, 2021Observed: 6.54 ft at 1:30AM May 07, 2021Observed: 6.54 ft at 1:45AM May 07, 2021Observed: 6.51 ft at 2:00AM May 07, 2021Observed: 6.53 ft at 2:15AM May 07, 2021Observed: 6.55 ft at 2:30AM May 07, 2021Observed: 6.54 ft at 2:45AM May 07, 2021Observed: 6.53 ft at 3:00AM May 07, 2021Observed: 6.52 ft at 3:15AM May 07, 2021Observed: 6.51 ft at 3:30AM May 07, 2021Observed: 6.53 ft at 3:45AM May 07, 2021Observed: 6.53 ft at 4:00AM May 07, 2021Observed: 6.51 ft at 4:15AM May 07, 2021Observed: 6.53 ft at 4:30AM May 07, 2021Observed: 6.5 ft at 4:45AM May 07, 2021Observed: 6.51 ft at 5:00AM May 07, 2021Observed: 6.51 ft at 5:15AM May 07, 2021Observed: 6.51 ft at 5:30AM May 07, 2021Observed: 6.48 ft at 5:45AM May 07, 2021Observed: 6.49 ft at 6:00AM May 07, 2021Observed: 6.48 ft at 6:15AM May 07, 2021Observed: 6.5 ft at 6:30AM May 07, 2021Observed: 6.5 ft at 6:45AM May 07, 2021Observed: 6.51 ft at 7:00AM May 07, 2021Observed: 6.5 ft at 7:15AM May 07, 2021Observed: 6.49 ft at 7:30AM May 07, 2021Observed: 6.49 ft at 7:45AM May 07, 2021Observed: 6.48 ft at 8:00AM May 07, 2021Observed: 6.46 ft at 8:15AM May 07, 2021Observed: 6.47 ft at 8:30AM May 07, 2021Observed: 6.47 ft at 8:45AM May 07, 2021Observed: 6.49 ft at 9:00AM May 07, 2021Observed: 6.47 ft at 9:15AM May 07, 2021Observed: 6.47 ft at 9:30AM May 07, 2021Observed: 6.47 ft at 9:45AM May 07, 2021Observed: 6.46 ft at 10:00AM May 07, 2021Observed: 6.47 ft at 10:15AM May 07, 2021Observed: 6.46 ft at 10:30AM May 07, 2021Observed: 6.45 ft at 10:45AM May 07, 2021Observed: 6.47 ft at 11:00AM May 07, 2021Observed: 6.44 ft at 11:15AM May 07, 2021Observed: 6.46 ft at 11:30AM May 07, 2021Observed: 6.45 ft at 11:45AM May 07, 2021Observed: 6.44 ft at 12:00PM May 07, 2021Observed: 6.43 ft at 12:15PM May 07, 2021Observed: 6.44 ft at 12:30PM May 07, 2021Observed: 6.44 ft at 12:45PM May 07, 2021Observed: 6.43 ft at 1:00PM May 07, 2021Observed: 6.44 ft at 1:15PM May 07, 2021Observed: 6.43 ft at 1:30PM May 07, 2021Observed: 6.42 ft at 1:45PM May 07, 2021Observed: 6.43 ft at 2:00PM May 07, 2021Observed: 6.4 ft at 2:15PM May 07, 2021Observed: 6.4 ft at 2:30PM May 07, 2021Observed: 6.41 ft at 2:45PM May 07, 2021Observed: 6.41 ft at 3:00PM May 07, 2021Observed: 6.4 ft at 3:15PM May 07, 2021Observed: 6.39 ft at 3:30PM May 07, 2021Observed: 6.4 ft at 3:45PM May 07, 2021Observed: 6.38 ft at 4:00PM May 07, 2021Observed: 6.39 ft at 4:15PM May 07, 2021Observed: 6.38 ft at 4:30PM May 07, 2021Observed: 6.37 ft at 4:45PM May 07, 2021Observed: 6.38 ft at 5:00PM May 07, 2021Observed: 6.38 ft at 5:15PM May 07, 2021Observed: 6.37 ft at 5:30PM May 07, 2021Observed: 6.35 ft at 5:45PM May 07, 2021Observed: 6.37 ft at 6:00PM May 07, 2021Observed: 6.37 ft at 6:15PM May 07, 2021Observed: 6.36 ft at 6:30PM May 07, 2021Observed: 6.36 ft at 6:45PM May 07, 2021Observed: 6.35 ft at 7:00PM May 07, 2021Observed: 6.34 ft at 7:15PM May 07, 2021Observed: 6.34 ft at 7:30PM May 07, 2021Observed: 6.33 ft at 7:45PM May 07, 2021Observed: 6.33 ft at 8:00PM May 07, 2021Observed: 6.33 ft at 8:01PM May 07, 2021Observed: 6.32 ft at 8:15PM May 07, 2021Observed: 6.33 ft at 8:30PM May 07, 2021Observed: 6.32 ft at 8:45PM May 07, 2021Observed: 6.33 ft at 9:00PM May 07, 2021Observed: 6.33 ft at 9:15PM May 07, 2021Observed: 6.32 ft at 9:30PM May 07, 2021Observed: 6.31 ft at 9:45PM May 07, 2021Observed: 6.3 ft at 10:00PM May 07, 2021Observed: 6.27 ft at 10:15PM May 07, 2021Observed: 6.3 ft at 10:30PM May 07, 2021Observed: 6.3 ft at 10:45PM May 07, 2021Observed: 6.3 ft at 11:00PM May 07, 2021Observed: 6.28 ft at 11:15PM May 07, 2021Observed: 6.28 ft at 11:30PM May 07, 2021Observed: 6.28 ft at 11:45PM May 07, 2021Observed: 6.27 ft at 12:00AM May 08, 2021Observed: 6.26 ft at 12:15AM May 08, 2021Observed: 6.25 ft at 12:30AM May 08, 2021Observed: 6.26 ft at 12:45AM May 08, 2021Observed: 6.28 ft at 1:00AM May 08, 2021Observed: 6.28 ft at 1:15AM May 08, 2021Observed: 6.25 ft at 1:30AM May 08, 2021Observed: 6.24 ft at 1:45AM May 08, 2021Observed: 6.24 ft at 2:00AM May 08, 2021Observed: 6.21 ft at 2:15AM May 08, 2021Observed: 6.21 ft at 2:30AM May 08, 2021Observed: 6.24 ft at 2:45AM May 08, 2021Observed: 6.24 ft at 3:00AM May 08, 2021Observed: 6.23 ft at 3:15AM May 08, 2021Observed: 6.19 ft at 3:30AM May 08, 2021Observed: 6.21 ft at 3:45AM May 08, 2021Observed: 6.19 ft at 4:00AM May 08, 2021Observed: 6.2 ft at 4:15AM May 08, 2021Observed: 6.2 ft at 4:30AM May 08, 2021Observed: 6.19 ft at 4:45AM May 08, 2021Observed: 6.2 ft at 5:00AM May 08, 2021Observed: 6.19 ft at 5:15AM May 08, 2021Observed: 6.18 ft at 5:30AM May 08, 2021Observed: 6.16 ft at 5:45AM May 08, 2021Observed: 6.18 ft at 6:00AM May 08, 2021Observed: 6.16 ft at 6:15AM May 08, 2021Observed: 6.18 ft at 6:30AM May 08, 2021Observed: 6.15 ft at 6:45AM May 08, 2021Observed: 6.17 ft at 7:00AM May 08, 2021Observed: 6.15 ft at 7:15AM May 08, 2021Observed: 6.16 ft at 7:30AM May 08, 2021Observed: 6.13 ft at 7:45AM May 08, 2021Observed: 6.15 ft at 8:00AM May 08, 2021Observed: 6.13 ft at 8:15AM May 08, 2021Observed: 6.12 ft at 8:30AM May 08, 2021Observed: 6.13 ft at 8:45AM May 08, 2021Observed: 6.13 ft at 9:00AM May 08, 2021Observed: 6.13 ft at 9:15AM May 08, 2021Observed: 6.11 ft at 9:30AM May 08, 2021Observed: 6.12 ft at 9:45AM May 08, 2021Observed: 6.13 ft at 10:00AM May 08, 2021Observed: 6.11 ft at 10:15AM May 08, 2021Observed: 6.1 ft at 10:30AM May 08, 2021Observed: 6.09 ft at 10:45AM May 08, 2021Observed: 6.09 ft at 11:00AM May 08, 2021Observed: 6.08 ft at 11:15AM May 08, 2021Observed: 6.08 ft at 11:30AM May 08, 2021Observed: 6.07 ft at 11:45AM May 08, 2021Observed: 6.08 ft at 12:00PM May 08, 2021Observed: 6.06 ft at 12:15PM May 08, 2021Observed: 6.07 ft at 12:30PM May 08, 2021Observed: 6.05 ft at 12:45PM May 08, 2021Observed: 6.05 ft at 1:00PM May 08, 2021Observed: 6.05 ft at 1:15PM May 08, 2021Observed: 6.05 ft at 1:30PM May 08, 2021Observed: 6.05 ft at 1:45PM May 08, 2021Observed: 6.03 ft at 2:00PM May 08, 2021Observed: 6.03 ft at 2:15PM May 08, 2021Observed: 6.02 ft at 2:30PM May 08, 2021Observed: 6.03 ft at 2:45PM May 08, 2021Observed: 6 ft at 3:00PM May 08, 2021Observed: 6.01 ft at 3:15PM May 08, 2021Observed: 6.02 ft at 3:30PM May 08, 2021Observed: 6.01 ft at 3:45PM May 08, 2021Observed: 6.03 ft at 4:00PM May 08, 2021Observed: 6.02 ft at 4:15PM May 08, 2021Observed: 5.99 ft at 4:30PM May 08, 2021Observed: 5.98 ft at 4:45PM May 08, 2021Observed: 5.98 ft at 5:00PM May 08, 2021Observed: 5.98 ft at 5:15PM May 08, 2021Observed: 5.97 ft at 5:30PM May 08, 2021Observed: 6.01 ft at 5:45PM May 08, 2021Observed: 5.96 ft at 6:00PM May 08, 2021Observed: 5.94 ft at 6:15PM May 08, 2021Observed: 5.94 ft at 6:30PM May 08, 2021Observed: 5.93 ft at 6:45PM May 08, 2021Observed: 5.92 ft at 7:00PM May 08, 2021Observed: 5.91 ft at 7:15PM May 08, 2021Observed: 5.92 ft at 7:30PM May 08, 2021Observed: 5.93 ft at 7:45PM May 08, 2021Observed: 5.9 ft at 8:00PM May 08, 2021Observed: 5.9 ft at 8:15PM May 08, 2021Observed: 5.89 ft at 8:30PM May 08, 2021Observed: 5.89 ft at 8:45PM May 08, 2021Observed: 5.88 ft at 9:00PM May 08, 2021Observed: 5.86 ft at 9:15PM May 08, 2021Observed: 5.87 ft at 9:30PM May 08, 2021Observed: 5.84 ft at 9:45PM May 08, 2021Observed: 5.87 ft at 10:00PM May 08, 2021Observed: 5.85 ft at 10:15PM May 08, 2021Observed: 5.84 ft at 10:30PM May 08, 2021Observed: 5.84 ft at 10:45PM May 08, 2021Observed: 5.83 ft at 11:00PM May 08, 2021Observed: 5.83 ft at 11:15PM May 08, 2021Observed: 5.82 ft at 11:30PM May 08, 2021Observed: 5.81 ft at 11:45PM May 08, 2021Observed: 5.8 ft at 12:00AM May 09, 2021Observed: 5.8 ft at 12:15AM May 09, 2021Observed: 5.79 ft at 12:30AM May 09, 2021Observed: 5.78 ft at 12:45AM May 09, 2021Observed: 5.78 ft at 1:00AM May 09, 2021Observed: 5.78 ft at 1:15AM May 09, 2021Observed: 5.75 ft at 1:30AM May 09, 2021Observed: 5.76 ft at 1:45AM May 09, 2021Observed: 5.73 ft at 2:00AM May 09, 2021Observed: 5.75 ft at 2:15AM May 09, 2021Observed: 5.76 ft at 2:30AM May 09, 2021Observed: 5.74 ft at 2:45AM May 09, 2021Observed: 5.72 ft at 3:00AM May 09, 2021Observed: 5.71 ft at 3:15AM May 09, 2021Observed: 5.71 ft at 3:30AM May 09, 2021Observed: 5.69 ft at 3:45AM May 09, 2021Observed: 5.7 ft at 4:00AM May 09, 2021Observed: 5.68 ft at 4:15AM May 09, 2021Observed: 5.68 ft at 4:30AM May 09, 2021Observed: 5.67 ft at 4:45AM May 09, 2021Observed: 5.67 ft at 5:00AM May 09, 2021Observed: 5.66 ft at 5:15AM May 09, 2021Observed: 5.66 ft at 5:30AM May 09, 2021Observed: 5.65 ft at 5:45AM May 09, 2021Observed: 5.64 ft at 6:00AM May 09, 2021Observed: 5.64 ft at 6:15AM May 09, 2021Observed: 5.63 ft at 6:30AM May 09, 2021Observed: 5.61 ft at 6:45AM May 09, 2021Observed: 5.61 ft at 7:00AM May 09, 2021Observed: 5.6 ft at 7:15AM May 09, 2021Observed: 5.58 ft at 7:30AM May 09, 2021Observed: 5.59 ft at 7:45AM May 09, 2021Observed: 5.58 ft at 8:00AM May 09, 2021Observed: 5.59 ft at 8:15AM May 09, 2021Observed: 5.57 ft at 8:30AM May 09, 2021Observed: 5.57 ft at 8:45AM May 09, 2021Observed: 5.56 ft at 9:00AM May 09, 2021Observed: 5.56 ft at 9:15AM May 09, 2021Observed: 5.55 ft at 9:30AM May 09, 2021Observed: 5.55 ft at 9:45AM May 09, 2021Observed: 5.53 ft at 10:00AM May 09, 2021Observed: 5.54 ft at 10:15AM May 09, 2021Observed: 5.51 ft at 10:30AM May 09, 2021Observed: 5.52 ft at 10:45AM May 09, 2021Observed: 5.51 ft at 11:00AM May 09, 2021Observed: 5.5 ft at 11:15AM May 09, 2021Observed: 5.51 ft at 11:30AM May 09, 2021Observed: 5.5 ft at 11:45AM May 09, 2021Observed: 5.49 ft at 12:00PM May 09, 2021Observed: 5.49 ft at 12:15PM May 09, 2021Observed: 5.48 ft at 12:30PM May 09, 2021Observed: 5.47 ft at 12:45PM May 09, 2021Observed: 5.46 ft at 1:00PM May 09, 2021Observed: 5.45 ft at 1:15PM May 09, 2021Observed: 5.45 ft at 1:30PM May 09, 2021Observed: 5.45 ft at 1:45PM May 09, 2021Observed: 5.43 ft at 2:00PM May 09, 2021Observed: 5.43 ft at 2:15PM May 09, 2021Observed: 5.43 ft at 2:30PM May 09, 2021Observed: 5.42 ft at 2:45PM May 09, 2021Observed: 5.4 ft at 3:00PM May 09, 2021Observed: 5.39 ft at 3:15PM May 09, 2021Observed: 5.38 ft at 3:30PM May 09, 2021Observed: 5.39 ft at 3:45PM May 09, 2021Observed: 5.38 ft at 4:00PM May 09, 2021Observed: 5.39 ft at 4:15PM May 09, 2021Observed: 5.37 ft at 4:30PM May 09, 2021Observed: 5.36 ft at 4:45PM May 09, 2021Observed: 5.36 ft at 5:00PM May 09, 2021Observed: 5.35 ft at 5:15PM May 09, 2021Observed: 5.36 ft at 5:30PM May 09, 2021Observed: 5.35 ft at 5:45PM May 09, 2021Observed: 5.35 ft at 6:00PM May 09, 2021Observed: 5.33 ft at 6:15PM May 09, 2021Observed: 5.33 ft at 6:30PM May 09, 2021Observed: 5.33 ft at 6:45PM May 09, 2021Observed: 5.33 ft at 7:00PM May 09, 2021Observed: 5.32 ft at 7:15PM May 09, 2021Observed: 5.33 ft at 7:30PM May 09, 2021Observed: 5.31 ft at 7:45PM May 09, 2021Observed: 5.32 ft at 8:00PM May 09, 2021Observed: 5.32 ft at 8:15PM May 09, 2021Observed: 5.31 ft at 8:30PM May 09, 2021Observed: 5.31 ft at 8:45PM May 09, 2021Observed: 5.3 ft at 9:00PM May 09, 2021Forecast: 5.1 ft 2:00AM May 10, 2021Forecast: 5.3 ft 8:00AM May 10, 2021Forecast: 5.5 ft 2:00PM May 10, 2021Forecast: 5.6 ft 8:00PM May 10, 2021Highest Forecast: 5.7 ft 2:00AM May 11, 2021Highest Forecast: 5.7 ft 8:00AM May 11, 2021Highest Forecast: 5.7 ft 2:00PM May 11, 2021Forecast: 5.6 ft 8:00PM May 11, 2021Forecast: 5.5 ft 2:00AM May 12, 2021Forecast: 5.4 ft 8:00AM May 12, 2021USGS--Water Resources of the United StatesGAYC3(plotting HGIRG) Graph Created (10:15PM May 9, 2021)ObservedForecast (issued 11:26AM May 9)Latest observed value: 5.3 ft at 9:00 PM EDT 9-May-2021. 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: Forecasts for the Housatonic River at Gaylordsville are issued routinely year-round.

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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) 8.36 ft on 12/26/2020 (P)
(2) 8.55 ft on 12/15/2019 (P)
(3) 8.45 ft on 11/04/2018
(4) 8.32 ft on 02/26/2016
(5) 8.64 ft on 04/01/2014 (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 where water reaches Spring Street.
9.5 The water reaches businesses on the low side of Spring Street.
8 Flood stage. Water reaches New Milford Foundry and Youngfield Street.
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
National Weather Service
Albany Weather Forecast Office
251 Fuller Road Suite B300
Albany, NY 12203-3650
(518) 435-9580
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Page last modified: 2-Nov-2020 7:30 PM
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