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Hydrograph River at a Glance Download
Naugatuck River at Beacon Falls Stage (ft)Flow (kcfs)Observed: 4.73 ft at 11:45AM Apr 14, 2024Observed: 4.73 ft at 12:00PM Apr 14, 2024Observed: 4.73 ft at 12:01PM Apr 14, 2024Observed: 4.73 ft at 12:15PM Apr 14, 2024Highest Observation: 4.74 ft at 12:30PM Apr 14, 2024Highest Observation: 4.74 ft at 12:45PM Apr 14, 2024Observed: 4.71 ft at 1:00PM Apr 14, 2024Observed: 4.7 ft at 1:15PM Apr 14, 2024Observed: 4.7 ft at 1:30PM Apr 14, 2024Observed: 4.68 ft at 1:45PM Apr 14, 2024Observed: 4.69 ft at 2:00PM Apr 14, 2024Observed: 4.68 ft at 2:15PM Apr 14, 2024Observed: 4.66 ft at 2:30PM Apr 14, 2024Observed: 4.68 ft at 2:45PM Apr 14, 2024Observed: 4.69 ft at 3:00PM Apr 14, 2024Observed: 4.67 ft at 3:15PM Apr 14, 2024Observed: 4.66 ft at 3:30PM Apr 14, 2024Observed: 4.66 ft at 3:45PM Apr 14, 2024Observed: 4.66 ft at 4:00PM Apr 14, 2024Observed: 4.62 ft at 4:15PM Apr 14, 2024Observed: 4.66 ft at 4:30PM Apr 14, 2024Observed: 4.64 ft at 4:45PM Apr 14, 2024Observed: 4.66 ft at 5:00PM Apr 14, 2024Observed: 4.69 ft at 5:15PM Apr 14, 2024Observed: 4.69 ft at 5:30PM Apr 14, 2024Observed: 4.69 ft at 5:45PM Apr 14, 2024Observed: 4.72 ft at 6:00PM Apr 14, 2024Observed: 4.7 ft at 6:15PM Apr 14, 2024Observed: 4.68 ft at 6:30PM Apr 14, 2024Observed: 4.7 ft at 6:45PM Apr 14, 2024Observed: 4.68 ft at 7:00PM Apr 14, 2024Observed: 4.68 ft at 7:15PM Apr 14, 2024Observed: 4.68 ft at 7:30PM Apr 14, 2024Observed: 4.68 ft at 7:45PM Apr 14, 2024Observed: 4.67 ft at 8:00PM Apr 14, 2024Observed: 4.66 ft at 8:15PM Apr 14, 2024Observed: 4.67 ft at 8:30PM Apr 14, 2024Observed: 4.65 ft at 8:45PM Apr 14, 2024Observed: 4.67 ft at 9:00PM Apr 14, 2024Observed: 4.63 ft at 9:15PM Apr 14, 2024Observed: 4.66 ft at 9:30PM Apr 14, 2024Observed: 4.65 ft at 9:45PM Apr 14, 2024Observed: 4.62 ft at 10:00PM Apr 14, 2024Observed: 4.63 ft at 10:15PM Apr 14, 2024Observed: 4.62 ft at 10:30PM Apr 14, 2024Observed: 4.62 ft at 10:45PM Apr 14, 2024Observed: 4.6 ft at 11:00PM Apr 14, 2024Observed: 4.59 ft at 11:15PM Apr 14, 2024Observed: 4.59 ft at 11:30PM Apr 14, 2024Observed: 4.57 ft at 11:45PM Apr 14, 2024Observed: 4.57 ft at 12:00AM Apr 15, 2024Observed: 4.57 ft at 12:01AM Apr 15, 2024Observed: 4.55 ft at 12:15AM Apr 15, 2024Observed: 4.55 ft at 12:30AM Apr 15, 2024Observed: 4.54 ft at 12:45AM Apr 15, 2024Observed: 4.53 ft at 1:00AM Apr 15, 2024Observed: 4.52 ft at 1:15AM Apr 15, 2024Observed: 4.51 ft at 1:30AM Apr 15, 2024Observed: 4.5 ft at 1:45AM Apr 15, 2024Observed: 4.49 ft at 2:00AM Apr 15, 2024Observed: 4.49 ft at 2:15AM Apr 15, 2024Observed: 4.47 ft at 2:30AM Apr 15, 2024Observed: 4.48 ft at 2:45AM Apr 15, 2024Observed: 4.46 ft at 3:00AM Apr 15, 2024Observed: 4.45 ft at 3:15AM Apr 15, 2024Observed: 4.45 ft at 3:30AM Apr 15, 2024Observed: 4.43 ft at 3:45AM Apr 15, 2024Observed: 4.41 ft at 4:00AM Apr 15, 2024Observed: 4.42 ft at 4:15AM Apr 15, 2024Observed: 4.41 ft at 4:30AM Apr 15, 2024Observed: 4.4 ft at 4:45AM Apr 15, 2024Observed: 4.41 ft at 5:00AM Apr 15, 2024Observed: 4.37 ft at 5:15AM Apr 15, 2024Observed: 4.36 ft at 5:30AM Apr 15, 2024Observed: 4.37 ft at 5:45AM Apr 15, 2024Observed: 4.34 ft at 6:00AM Apr 15, 2024Observed: 4.34 ft at 6:01AM Apr 15, 2024Observed: 4.35 ft at 6:15AM Apr 15, 2024Observed: 4.34 ft at 6:30AM Apr 15, 2024Observed: 4.31 ft at 6:45AM Apr 15, 2024Observed: 4.32 ft at 7:00AM Apr 15, 2024Observed: 4.3 ft at 7:15AM Apr 15, 2024Observed: 4.3 ft at 7:30AM Apr 15, 2024Observed: 4.28 ft at 7:45AM Apr 15, 2024Observed: 4.26 ft at 8:00AM Apr 15, 2024Observed: 4.26 ft at 8:15AM Apr 15, 2024Observed: 4.25 ft at 8:30AM Apr 15, 2024Observed: 4.24 ft at 8:45AM Apr 15, 2024Observed: 4.23 ft at 9:00AM Apr 15, 2024Observed: 4.24 ft at 9:15AM Apr 15, 2024Observed: 4.21 ft at 9:30AM Apr 15, 2024Observed: 4.21 ft at 9:45AM Apr 15, 2024Observed: 4.2 ft at 10:00AM Apr 15, 2024Observed: 4.21 ft at 10:15AM Apr 15, 2024Observed: 4.2 ft at 10:30AM Apr 15, 2024Observed: 4.19 ft at 10:45AM Apr 15, 2024Observed: 4.19 ft at 11:00AM Apr 15, 2024Observed: 4.16 ft at 11:15AM Apr 15, 2024Observed: 4.16 ft at 11:30AM Apr 15, 2024Observed: 4.15 ft at 11:45AM Apr 15, 2024Observed: 4.15 ft at 11:46AM Apr 15, 2024Observed: 4.13 ft at 12:00PM Apr 15, 2024Observed: 4.15 ft at 12:15PM Apr 15, 2024Observed: 4.14 ft at 12:30PM Apr 15, 2024Observed: 4.13 ft at 12:45PM Apr 15, 2024Observed: 4.14 ft at 1:00PM Apr 15, 2024Observed: 4.12 ft at 1:15PM Apr 15, 2024Observed: 4.11 ft at 1:30PM Apr 15, 2024Observed: 4.12 ft at 1:45PM Apr 15, 2024Observed: 4.11 ft at 2:00PM Apr 15, 2024Observed: 4.08 ft at 2:15PM Apr 15, 2024Observed: 4.08 ft at 2:30PM Apr 15, 2024Observed: 4.08 ft at 2:45PM Apr 15, 2024Observed: 4.08 ft at 3:00PM Apr 15, 2024Observed: 4.08 ft at 3:15PM Apr 15, 2024Observed: 4.07 ft at 3:30PM Apr 15, 2024Observed: 4.07 ft at 3:45PM Apr 15, 2024Observed: 4.06 ft at 4:00PM Apr 15, 2024Observed: 4.05 ft at 4:15PM Apr 15, 2024Observed: 4.06 ft at 4:30PM Apr 15, 2024Observed: 4.04 ft at 4:45PM Apr 15, 2024Observed: 4.03 ft at 5:00PM Apr 15, 2024Observed: 4.02 ft at 5:15PM Apr 15, 2024Observed: 4.03 ft at 5:30PM Apr 15, 2024Observed: 4.01 ft at 5:45PM Apr 15, 2024Observed: 4.02 ft at 6:00PM Apr 15, 2024Observed: 4.02 ft at 6:01PM Apr 15, 2024Observed: 4 ft at 6:15PM Apr 15, 2024Observed: 4.01 ft at 6:30PM Apr 15, 2024Observed: 4 ft at 6:45PM Apr 15, 2024Observed: 3.99 ft at 7:00PM Apr 15, 2024Observed: 4 ft at 7:15PM Apr 15, 2024Observed: 4 ft at 7:30PM Apr 15, 2024Observed: 3.98 ft at 7:45PM Apr 15, 2024Observed: 3.99 ft at 8:00PM Apr 15, 2024Observed: 3.98 ft at 8:15PM Apr 15, 2024Observed: 3.97 ft at 8:30PM Apr 15, 2024Observed: 3.97 ft at 8:45PM Apr 15, 2024Observed: 3.95 ft at 9:00PM Apr 15, 2024Observed: 3.97 ft at 9:15PM Apr 15, 2024Observed: 3.94 ft at 9:30PM Apr 15, 2024Observed: 3.96 ft at 9:45PM Apr 15, 2024Observed: 3.95 ft at 10:00PM Apr 15, 2024Observed: 3.95 ft at 10:15PM Apr 15, 2024Observed: 3.94 ft at 10:30PM Apr 15, 2024Observed: 3.94 ft at 10:45PM Apr 15, 2024Observed: 3.93 ft at 11:00PM Apr 15, 2024Observed: 3.93 ft at 11:15PM Apr 15, 2024Observed: 3.92 ft at 11:30PM Apr 15, 2024Observed: 3.9 ft at 11:45PM Apr 15, 2024Observed: 3.92 ft at 12:00AM Apr 16, 2024Observed: 3.92 ft at 12:01AM Apr 16, 2024Observed: 3.9 ft at 12:15AM Apr 16, 2024Observed: 3.91 ft at 12:30AM Apr 16, 2024Observed: 3.9 ft at 12:45AM Apr 16, 2024Observed: 3.9 ft at 1:00AM Apr 16, 2024Observed: 3.9 ft at 1:15AM Apr 16, 2024Observed: 3.89 ft at 1:30AM Apr 16, 2024Observed: 3.88 ft at 1:45AM Apr 16, 2024Observed: 3.89 ft at 2:00AM Apr 16, 2024Observed: 3.86 ft at 2:15AM Apr 16, 2024Observed: 3.87 ft at 2:30AM Apr 16, 2024Observed: 3.86 ft at 2:45AM Apr 16, 2024Observed: 3.86 ft at 3:00AM Apr 16, 2024Observed: 3.84 ft at 3:15AM Apr 16, 2024Observed: 3.84 ft at 3:30AM Apr 16, 2024Observed: 3.85 ft at 3:45AM Apr 16, 2024Observed: 3.83 ft at 4:00AM Apr 16, 2024Observed: 3.84 ft at 4:15AM Apr 16, 2024Observed: 3.84 ft at 4:30AM Apr 16, 2024Observed: 3.84 ft at 4:45AM Apr 16, 2024Observed: 3.81 ft at 5:00AM Apr 16, 2024Observed: 3.8 ft at 5:15AM Apr 16, 2024Observed: 3.81 ft at 5:30AM Apr 16, 2024Observed: 3.79 ft at 5:45AM Apr 16, 2024Observed: 3.8 ft at 6:00AM Apr 16, 2024Observed: 3.8 ft at 6:15AM Apr 16, 2024Observed: 3.79 ft at 6:30AM Apr 16, 2024Observed: 3.79 ft at 6:45AM Apr 16, 2024Observed: 3.78 ft at 7:00AM Apr 16, 2024Observed: 3.8 ft at 7:15AM Apr 16, 2024Observed: 3.77 ft at 7:30AM Apr 16, 2024Observed: 3.78 ft at 7:45AM Apr 16, 2024Observed: 3.77 ft at 8:00AM Apr 16, 2024Observed: 3.76 ft at 8:15AM Apr 16, 2024Observed: 3.77 ft at 8:30AM Apr 16, 2024Observed: 3.77 ft at 8:45AM Apr 16, 2024Observed: 3.77 ft at 9:00AM Apr 16, 2024Observed: 3.76 ft at 9:15AM Apr 16, 2024Observed: 3.76 ft at 9:30AM Apr 16, 2024Observed: 3.75 ft at 9:45AM Apr 16, 2024Observed: 3.75 ft at 10:00AM Apr 16, 2024Observed: 3.75 ft at 10:15AM Apr 16, 2024Observed: 3.75 ft at 10:30AM Apr 16, 2024Highest Forecast: 3.5 ft 2:00PM Apr 16, 2024Highest Forecast: 3.5 ft 8:00PM Apr 16, 2024Forecast: 3.4 ft 2:00AM Apr 17, 2024Forecast: 3.4 ft 8:00AM Apr 17, 2024Forecast: 3.4 ft 2:00PM Apr 17, 2024Forecast: 3.3 ft 8:00PM Apr 17, 2024Forecast: 3.4 ft 2:00AM Apr 18, 2024Forecast: 3.4 ft 8:00AM Apr 18, 2024USGS--Water Resources of the United StatesBEAC3(plotting HGIRG) Graph Created (11:31AM Apr 16, 2024)ObservedForecast (issued 11:29AM Apr 15)Latest observed value: 3.75 ft at 10:30 AM EDT 16-Apr-2024. Flood Stage is 12 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts for the Naugatuck River at Beacon Falls are issued routinely year-round.

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Flood Categories (in feet)
Major Flood Stage: 14
Moderate Flood Stage: 13
Flood Stage: 12
Action Stage: 11.5
Low Stage (in feet): -9999

Historic Crests
(1) 25.70 ft on 08/19/1955
(2) 14.36 ft on 08/28/2011
(3) 14.10 ft on 03/12/1936
(4) 13.78 ft on 01/25/1979
(5) 12.95 ft on 06/05/1982
(6) 12.60 ft on 03/07/2011
(7) 12.21 ft on 04/23/2006
(8) 12.10 ft on 04/16/2007
(9) 12.08 ft on 04/07/1924

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.36 ft on 08/28/2011
(2) 12.60 ft on 03/07/2011
(3) 12.10 ft on 04/16/2007
(4) 12.21 ft on 04/23/2006
(5) 12.95 ft on 06/05/1982
(6) 13.78 ft on 01/25/1979
(7) 25.70 ft on 08/19/1955
(8) 14.10 ft on 03/12/1936
(9) 12.08 ft on 04/07/1924

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:15
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
21 Flooding begins along Route 8 from the Naugatuck Town Line downstream to the Seymour Town Line.
20 The river level just touches the underside of the bridge on Bridge Street.
12 Flooding begins in the upstream towns of Waterbury and Naugatuck.
About This Location Collapse

Latitude: 41.442222° N, Longitude: 73.063056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 29 117.28 ft 129.28 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.
Resources Collapse
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
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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