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Hydrograph River at a Glance Download
Neponset River at Norwood Stage (ft)Flow (kcfs)Observed: 6.06 ft at 10:30AM May 15, 2024Observed: 6.06 ft at 10:45AM May 15, 2024Observed: 6.07 ft at 11:00AM May 15, 2024Observed: 6.06 ft at 11:15AM May 15, 2024Observed: 6.06 ft at 11:30AM May 15, 2024Observed: 6.06 ft at 11:45AM May 15, 2024Observed: 6.06 ft at 12:00PM May 15, 2024Observed: 6.06 ft at 12:15PM May 15, 2024Observed: 6.07 ft at 12:30PM May 15, 2024Observed: 6.06 ft at 12:45PM May 15, 2024Observed: 6.07 ft at 1:00PM May 15, 2024Observed: 6.06 ft at 1:15PM May 15, 2024Observed: 6.06 ft at 1:30PM May 15, 2024Observed: 6.06 ft at 1:45PM May 15, 2024Observed: 6.06 ft at 2:00PM May 15, 2024Observed: 6.06 ft at 2:15PM May 15, 2024Observed: 6.07 ft at 2:30PM May 15, 2024Observed: 6.07 ft at 2:45PM May 15, 2024Observed: 6.07 ft at 3:00PM May 15, 2024Observed: 6.07 ft at 3:15PM May 15, 2024Observed: 6.07 ft at 3:30PM May 15, 2024Observed: 6.07 ft at 3:45PM May 15, 2024Observed: 6.07 ft at 4:00PM May 15, 2024Observed: 6.07 ft at 4:15PM May 15, 2024Observed: 6.07 ft at 4:30PM May 15, 2024Observed: 6.06 ft at 4:45PM May 15, 2024Observed: 6.07 ft at 5:00PM May 15, 2024Observed: 6.07 ft at 5:15PM May 15, 2024Observed: 6.07 ft at 5:30PM May 15, 2024Observed: 6.06 ft at 5:45PM May 15, 2024Observed: 6.06 ft at 6:00PM May 15, 2024Observed: 6.06 ft at 6:15PM May 15, 2024Observed: 6.06 ft at 6:30PM May 15, 2024Observed: 6.06 ft at 6:45PM May 15, 2024Observed: 6.06 ft at 7:00PM May 15, 2024Observed: 6.06 ft at 7:15PM May 15, 2024Observed: 6.06 ft at 7:30PM May 15, 2024Observed: 6.06 ft at 7:45PM May 15, 2024Observed: 6.06 ft at 8:00PM May 15, 2024Observed: 6.06 ft at 8:15PM May 15, 2024Observed: 6.06 ft at 8:30PM May 15, 2024Observed: 6.06 ft at 8:45PM May 15, 2024Observed: 6.06 ft at 9:00PM May 15, 2024Observed: 6.06 ft at 9:15PM May 15, 2024Observed: 6.06 ft at 9:30PM May 15, 2024Observed: 6.06 ft at 9:45PM May 15, 2024Observed: 6.07 ft at 10:00PM May 15, 2024Observed: 6.09 ft at 10:15PM May 15, 2024Observed: 6.11 ft at 10:30PM May 15, 2024Observed: 6.17 ft at 10:45PM May 15, 2024Observed: 6.22 ft at 11:00PM May 15, 2024Observed: 6.25 ft at 11:15PM May 15, 2024Observed: 6.25 ft at 11:30PM May 15, 2024Observed: 6.24 ft at 11:45PM May 15, 2024Observed: 6.24 ft at 12:00AM May 16, 2024Observed: 6.23 ft at 12:15AM May 16, 2024Observed: 6.22 ft at 12:30AM May 16, 2024Observed: 6.3 ft at 12:45AM May 16, 2024Observed: 6.33 ft at 1:00AM May 16, 2024Observed: 6.33 ft at 1:15AM May 16, 2024Observed: 6.31 ft at 1:30AM May 16, 2024Observed: 6.29 ft at 1:45AM May 16, 2024Observed: 6.28 ft at 2:00AM May 16, 2024Observed: 6.31 ft at 2:15AM May 16, 2024Observed: 6.41 ft at 2:30AM May 16, 2024Observed: 6.42 ft at 2:45AM May 16, 2024Observed: 6.4 ft at 3:00AM May 16, 2024Observed: 6.41 ft at 3:15AM May 16, 2024Observed: 6.42 ft at 3:30AM May 16, 2024Observed: 6.41 ft at 3:45AM May 16, 2024Observed: 6.4 ft at 4:00AM May 16, 2024Observed: 6.42 ft at 4:15AM May 16, 2024Observed: 6.44 ft at 4:30AM May 16, 2024Observed: 6.47 ft at 4:45AM May 16, 2024Observed: 6.48 ft at 5:00AM May 16, 2024Observed: 6.49 ft at 5:15AM May 16, 2024Observed: 6.48 ft at 5:30AM May 16, 2024Observed: 6.48 ft at 5:45AM May 16, 2024Observed: 6.48 ft at 6:00AM May 16, 2024Observed: 6.5 ft at 6:15AM May 16, 2024Observed: 6.52 ft at 6:30AM May 16, 2024Observed: 6.56 ft at 6:45AM May 16, 2024Observed: 6.59 ft at 7:00AM May 16, 2024Observed: 6.59 ft at 7:15AM May 16, 2024Observed: 6.62 ft at 7:30AM May 16, 2024Observed: 6.62 ft at 7:45AM May 16, 2024Observed: 6.6 ft at 8:00AM May 16, 2024Observed: 6.6 ft at 8:15AM May 16, 2024Observed: 6.6 ft at 8:30AM May 16, 2024Observed: 6.6 ft at 8:45AM May 16, 2024Observed: 6.61 ft at 9:00AM May 16, 2024Observed: 6.6 ft at 9:15AM May 16, 2024Observed: 6.61 ft at 9:30AM May 16, 2024Observed: 6.61 ft at 9:45AM May 16, 2024Observed: 6.63 ft at 10:00AM May 16, 2024Observed: 6.63 ft at 10:15AM May 16, 2024Observed: 6.65 ft at 10:30AM May 16, 2024Observed: 6.65 ft at 10:45AM May 16, 2024Observed: 6.66 ft at 11:00AM May 16, 2024Observed: 6.66 ft at 11:15AM May 16, 2024Observed: 6.66 ft at 11:30AM May 16, 2024Observed: 6.66 ft at 11:45AM May 16, 2024Observed: 6.67 ft at 12:00PM May 16, 2024Observed: 6.67 ft at 12:15PM May 16, 2024Observed: 6.68 ft at 12:30PM May 16, 2024Observed: 6.69 ft at 12:45PM May 16, 2024Observed: 6.71 ft at 1:00PM May 16, 2024Highest Observation: 6.72 ft at 1:15PM May 16, 2024Observed: 6.71 ft at 1:30PM May 16, 2024Observed: 6.71 ft at 1:45PM May 16, 2024Observed: 6.7 ft at 2:00PM May 16, 2024Observed: 6.7 ft at 2:15PM May 16, 2024Observed: 6.69 ft at 2:30PM May 16, 2024Observed: 6.69 ft at 2:45PM May 16, 2024Observed: 6.69 ft at 3:00PM May 16, 2024Observed: 6.68 ft at 3:15PM May 16, 2024Observed: 6.68 ft at 3:30PM May 16, 2024Observed: 6.68 ft at 3:45PM May 16, 2024Observed: 6.68 ft at 4:00PM May 16, 2024Observed: 6.68 ft at 4:15PM May 16, 2024Observed: 6.68 ft at 4:30PM May 16, 2024Observed: 6.68 ft at 4:45PM May 16, 2024Observed: 6.68 ft at 5:00PM May 16, 2024Observed: 6.67 ft at 5:15PM May 16, 2024Observed: 6.67 ft at 5:30PM May 16, 2024Observed: 6.67 ft at 5:45PM May 16, 2024Observed: 6.67 ft at 6:00PM May 16, 2024Observed: 6.68 ft at 6:15PM May 16, 2024Observed: 6.67 ft at 6:30PM May 16, 2024Observed: 6.67 ft at 6:45PM May 16, 2024Observed: 6.67 ft at 7:00PM May 16, 2024Observed: 6.67 ft at 7:15PM May 16, 2024Observed: 6.67 ft at 7:30PM May 16, 2024Observed: 6.67 ft at 7:45PM May 16, 2024Observed: 6.67 ft at 8:00PM May 16, 2024Observed: 6.66 ft at 8:15PM May 16, 2024Observed: 6.66 ft at 8:30PM May 16, 2024Observed: 6.66 ft at 8:45PM May 16, 2024Observed: 6.66 ft at 9:00PM May 16, 2024Observed: 6.66 ft at 9:15PM May 16, 2024Observed: 6.66 ft at 9:30PM May 16, 2024Observed: 6.66 ft at 9:45PM May 16, 2024Observed: 6.65 ft at 10:00PM May 16, 2024Observed: 6.65 ft at 10:15PM May 16, 2024Observed: 6.65 ft at 10:30PM May 16, 2024Observed: 6.65 ft at 10:45PM May 16, 2024Observed: 6.65 ft at 11:00PM May 16, 2024Observed: 6.65 ft at 11:15PM May 16, 2024Observed: 6.65 ft at 11:30PM May 16, 2024Observed: 6.65 ft at 11:45PM May 16, 2024Observed: 6.64 ft at 12:00AM May 17, 2024Observed: 6.65 ft at 12:15AM May 17, 2024Observed: 6.65 ft at 12:30AM May 17, 2024Observed: 6.64 ft at 12:45AM May 17, 2024Observed: 6.64 ft at 1:00AM May 17, 2024Observed: 6.64 ft at 1:15AM May 17, 2024Observed: 6.64 ft at 1:30AM May 17, 2024Observed: 6.64 ft at 1:45AM May 17, 2024Observed: 6.64 ft at 2:00AM May 17, 2024Observed: 6.64 ft at 2:15AM May 17, 2024Observed: 6.64 ft at 2:30AM May 17, 2024Observed: 6.64 ft at 2:45AM May 17, 2024Observed: 6.64 ft at 3:00AM May 17, 2024Observed: 6.64 ft at 3:15AM May 17, 2024Observed: 6.64 ft at 3:30AM May 17, 2024Observed: 6.64 ft at 3:45AM May 17, 2024Observed: 6.64 ft at 4:00AM May 17, 2024Observed: 6.64 ft at 4:15AM May 17, 2024Observed: 6.64 ft at 4:30AM May 17, 2024Observed: 6.64 ft at 4:45AM May 17, 2024Observed: 6.64 ft at 5:00AM May 17, 2024Observed: 6.64 ft at 5:15AM May 17, 2024Observed: 6.64 ft at 5:30AM May 17, 2024Observed: 6.65 ft at 5:45AM May 17, 2024Observed: 6.65 ft at 6:00AM May 17, 2024Observed: 6.65 ft at 6:15AM May 17, 2024Observed: 6.65 ft at 6:30AM May 17, 2024Observed: 6.65 ft at 6:45AM May 17, 2024Observed: 6.65 ft at 7:00AM May 17, 2024Observed: 6.65 ft at 7:15AM May 17, 2024Observed: 6.65 ft at 7:30AM May 17, 2024Observed: 6.66 ft at 7:45AM May 17, 2024Observed: 6.65 ft at 8:00AM May 17, 2024Observed: 6.66 ft at 8:15AM May 17, 2024Observed: 6.66 ft at 8:30AM May 17, 2024Observed: 6.66 ft at 8:45AM May 17, 2024Observed: 6.66 ft at 9:00AM May 17, 2024Observed: 6.66 ft at 9:15AM May 17, 2024Observed: 6.66 ft at 9:30AM May 17, 2024Observed: 6.67 ft at 9:45AM May 17, 2024Observed: 6.67 ft at 10:00AM May 17, 2024Observed: 6.67 ft at 10:15AM May 17, 2024Observed: 6.67 ft at 10:30AM May 17, 2024Observed: 6.67 ft at 10:45AM May 17, 2024Observed: 6.67 ft at 11:00AM May 17, 2024Observed: 6.67 ft at 11:15AM May 17, 2024Observed: 6.67 ft at 11:30AM May 17, 2024Observed: 6.67 ft at 11:45AM May 17, 2024Observed: 6.67 ft at 12:00PM May 17, 2024Observed: 6.67 ft at 12:15PM May 17, 2024Observed: 6.67 ft at 12:30PM May 17, 2024Observed: 6.67 ft at 12:45PM May 17, 2024Observed: 6.67 ft at 1:00PM May 17, 2024Observed: 6.67 ft at 1:15PM May 17, 2024Observed: 6.67 ft at 1:30PM May 17, 2024Observed: 6.67 ft at 1:45PM May 17, 2024Observed: 6.68 ft at 2:00PM May 17, 2024Observed: 6.67 ft at 2:15PM May 17, 2024Observed: 6.67 ft at 2:30PM May 17, 2024Observed: 6.67 ft at 2:45PM May 17, 2024Observed: 6.68 ft at 3:00PM May 17, 2024Observed: 6.67 ft at 3:15PM May 17, 2024Observed: 6.67 ft at 3:30PM May 17, 2024Observed: 6.67 ft at 3:45PM May 17, 2024Observed: 6.67 ft at 4:00PM May 17, 2024Observed: 6.67 ft at 4:15PM May 17, 2024Observed: 6.67 ft at 4:30PM May 17, 2024Observed: 6.67 ft at 4:45PM May 17, 2024Observed: 6.67 ft at 5:00PM May 17, 2024Observed: 6.67 ft at 5:15PM May 17, 2024Observed: 6.67 ft at 5:30PM May 17, 2024Observed: 6.66 ft at 5:45PM May 17, 2024Observed: 6.67 ft at 6:00PM May 17, 2024Observed: 6.66 ft at 6:15PM May 17, 2024Observed: 6.66 ft at 6:30PM May 17, 2024Observed: 6.66 ft at 6:45PM May 17, 2024Observed: 6.66 ft at 7:00PM May 17, 2024Observed: 6.65 ft at 7:15PM May 17, 2024Observed: 6.65 ft at 7:30PM May 17, 2024Observed: 6.65 ft at 7:45PM May 17, 2024Observed: 6.65 ft at 8:00PM May 17, 2024Observed: 6.64 ft at 8:15PM May 17, 2024Observed: 6.64 ft at 8:30PM May 17, 2024Observed: 6.64 ft at 8:45PM May 17, 2024Observed: 6.64 ft at 9:00PM May 17, 2024Observed: 6.64 ft at 9:15PM May 17, 2024Observed: 6.64 ft at 9:30PM May 17, 2024Observed: 6.64 ft at 9:45PM May 17, 2024Observed: 6.63 ft at 10:00PM May 17, 2024Observed: 6.63 ft at 10:15PM May 17, 2024Observed: 6.63 ft at 10:30PM May 17, 2024Observed: 6.62 ft at 10:45PM May 17, 2024Observed: 6.62 ft at 11:00PM May 17, 2024Observed: 6.62 ft at 11:15PM May 17, 2024Observed: 6.62 ft at 11:30PM May 17, 2024Observed: 6.62 ft at 11:45PM May 17, 2024Observed: 6.61 ft at 12:00AM May 18, 2024Observed: 6.61 ft at 12:15AM May 18, 2024Observed: 6.61 ft at 12:30AM May 18, 2024Observed: 6.61 ft at 12:45AM May 18, 2024Observed: 6.6 ft at 1:00AM May 18, 2024Observed: 6.6 ft at 1:15AM May 18, 2024Observed: 6.6 ft at 1:30AM May 18, 2024Observed: 6.6 ft at 1:45AM May 18, 2024Observed: 6.6 ft at 2:00AM May 18, 2024Observed: 6.59 ft at 2:15AM May 18, 2024Observed: 6.59 ft at 2:30AM May 18, 2024Observed: 6.59 ft at 2:45AM May 18, 2024Observed: 6.59 ft at 3:00AM May 18, 2024Observed: 6.59 ft at 3:15AM May 18, 2024Observed: 6.58 ft at 3:30AM May 18, 2024Observed: 6.58 ft at 3:45AM May 18, 2024Observed: 6.58 ft at 4:00AM May 18, 2024Observed: 6.58 ft at 4:15AM May 18, 2024Observed: 6.58 ft at 4:30AM May 18, 2024Observed: 6.58 ft at 4:45AM May 18, 2024Observed: 6.57 ft at 5:00AM May 18, 2024Observed: 6.57 ft at 5:15AM May 18, 2024Observed: 6.57 ft at 5:30AM May 18, 2024Observed: 6.57 ft at 5:45AM May 18, 2024Observed: 6.57 ft at 6:00AM May 18, 2024Observed: 6.56 ft at 6:15AM May 18, 2024Observed: 6.56 ft at 6:30AM May 18, 2024Observed: 6.56 ft at 6:45AM May 18, 2024Observed: 6.56 ft at 7:00AM May 18, 2024Observed: 6.56 ft at 7:15AM May 18, 2024Observed: 6.55 ft at 7:30AM May 18, 2024Observed: 6.56 ft at 7:45AM May 18, 2024Observed: 6.56 ft at 8:00AM May 18, 2024Observed: 6.55 ft at 8:15AM May 18, 2024Observed: 6.55 ft at 8:30AM May 18, 2024Observed: 6.55 ft at 8:45AM May 18, 2024Observed: 6.55 ft at 9:00AM May 18, 2024Highest Forecast: 6.4 ft 2:00PM May 18, 2024Highest Forecast: 6.4 ft 8:00PM May 18, 2024Highest Forecast: 6.4 ft 2:00AM May 19, 2024Highest Forecast: 6.4 ft 8:00AM May 19, 2024Highest Forecast: 6.4 ft 2:00PM May 19, 2024Highest Forecast: 6.4 ft 8:00PM May 19, 2024Highest Forecast: 6.4 ft 2:00AM May 20, 2024Forecast: 6.3 ft 8:00AM May 20, 2024USGS--Water Resources of the United StatesNRWM3(plotting HGIRG) Graph Created (10:15AM May 18, 2024)ObservedForecast (issued 11:25AM May 17)Latest observed value: 6.55 ft at 9:00 AM EDT 18-May-2024. Flood Stage is 9 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Neponset River at Norwood are issued routinely year-round.

Vertical datum height surveyed by the USGS

Return to Area Map
Downstream Gauge Downstream Gauge - at E. Br. at Canton
Flood Categories (in feet)
Major Flood Stage: 11
Moderate Flood Stage: 10
Flood Stage: 9
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 14.65 ft on 08/19/1955
(2) 11.32 ft on 11/05/1955
(3) 11.16 ft on 03/30/2010
(4) 11.07 ft on 03/15/2010
(5) 11.05 ft on 07/24/1938
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.04 ft on 01/13/2024
(2) 9.41 ft on 01/10/2024
(3) 9.07 ft on 12/19/2023
(4) 9.46 ft on 06/28/2020
(5) 11.16 ft on 03/30/2010
Show More Recent Crests

(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: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
12 Significant flooding is expected along the river in Walpole and Norwood. If evacuations are needed, do so immediately. Know alternate routes for travel in case your normal route becomes flooded. Norwood Memorial Airport is substantially impacted. A portion of Route 27 in Walpole near the commuter rail station is impassable. Backwater flooding occurs on Neponset Street in Canton. Floodwaters affect homes along Dean Street in Norwood near Route 1.
11.5 Flooding impacts homes and businesses along the river in Walpole and Norwood, including homes along the river on Dean Street in Norwood near Route 1. A portion of Route 27 in Walpole near the commuter rail station is impassable. Backwater flooding occurs on a portion of Neponset Street in Canton. Flooding also occurs at the Norwood Memorial Airport.
11 Flooding impacts homes and businesses along the river in Walpole and Norwood, including homes along the river on Dean Street in Norwood near Route 1. A portion of Route 27 in Walpole near the commuter rail station is impassable. Norwood Memorial Airport is substantially impacted.
10.5 Flood waters reach homes along the river on Dean Street in Norwood near Route 1. Flooding may also affect a portion of Route 27 in Walpole near the commuter rail station.
10 Minor flooding affects homes along the river on Dean Street near Route 1 in Norwood. Widespread lowland flooding can also be expected.
9 Minor lowland flooding occurs along the Neponset River in Norwood.
About This Location Collapse

Latitude: 42.177599° N, Longitude: 71.200886° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 9 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 43.25 52.25 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

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
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Norton, MA 02766
(508) 622-3250
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