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FloodSmart
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Hydrograph River at a Glance Download Inundation
Mapping
Raritan River at Bound Brook Stage (ft)Flow (kcfs)Observed: 17.61 ft at 9:15AM Aug 17, 2018Observed: 17.61 ft at 9:30AM Aug 17, 2018Observed: 17.61 ft at 9:45AM Aug 17, 2018Observed: 17.61 ft at 10:00AM Aug 17, 2018Observed: 17.61 ft at 10:15AM Aug 17, 2018Observed: 17.61 ft at 10:30AM Aug 17, 2018Observed: 17.61 ft at 10:45AM Aug 17, 2018Observed: 17.6 ft at 11:00AM Aug 17, 2018Observed: 17.6 ft at 11:15AM Aug 17, 2018Observed: 17.59 ft at 11:30AM Aug 17, 2018Observed: 17.59 ft at 11:45AM Aug 17, 2018Observed: 17.59 ft at 12:00PM Aug 17, 2018Observed: 17.59 ft at 12:15PM Aug 17, 2018Observed: 17.58 ft at 12:30PM Aug 17, 2018Observed: 17.58 ft at 12:45PM Aug 17, 2018Observed: 17.58 ft at 1:00PM Aug 17, 2018Observed: 17.58 ft at 1:15PM Aug 17, 2018Observed: 17.59 ft at 1:30PM Aug 17, 2018Observed: 17.59 ft at 1:45PM Aug 17, 2018Observed: 17.59 ft at 2:00PM Aug 17, 2018Observed: 17.59 ft at 2:15PM Aug 17, 2018Observed: 17.59 ft at 2:30PM Aug 17, 2018Observed: 17.59 ft at 2:45PM Aug 17, 2018Observed: 17.58 ft at 3:00PM Aug 17, 2018Observed: 17.58 ft at 3:15PM Aug 17, 2018Observed: 17.58 ft at 3:30PM Aug 17, 2018Observed: 17.58 ft at 3:45PM Aug 17, 2018Observed: 17.58 ft at 4:00PM Aug 17, 2018Observed: 17.58 ft at 4:15PM Aug 17, 2018Observed: 17.57 ft at 4:30PM Aug 17, 2018Observed: 17.57 ft at 4:45PM Aug 17, 2018Observed: 17.57 ft at 5:00PM Aug 17, 2018Observed: 17.55 ft at 5:15PM Aug 17, 2018Observed: 17.55 ft at 5:30PM Aug 17, 2018Observed: 17.54 ft at 5:45PM Aug 17, 2018Observed: 17.53 ft at 6:00PM Aug 17, 2018Observed: 17.52 ft at 6:15PM Aug 17, 2018Observed: 17.52 ft at 6:30PM Aug 17, 2018Observed: 17.51 ft at 6:45PM Aug 17, 2018Observed: 17.51 ft at 7:00PM Aug 17, 2018Observed: 17.51 ft at 7:15PM Aug 17, 2018Observed: 17.51 ft at 7:30PM Aug 17, 2018Observed: 17.51 ft at 7:45PM Aug 17, 2018Observed: 17.51 ft at 8:00PM Aug 17, 2018Observed: 17.5 ft at 8:15PM Aug 17, 2018Observed: 17.5 ft at 8:30PM Aug 17, 2018Observed: 17.5 ft at 8:45PM Aug 17, 2018Observed: 17.49 ft at 9:00PM Aug 17, 2018Observed: 17.49 ft at 9:15PM Aug 17, 2018Observed: 17.5 ft at 9:30PM Aug 17, 2018Observed: 17.51 ft at 9:45PM Aug 17, 2018Observed: 17.51 ft at 10:00PM Aug 17, 2018Observed: 17.52 ft at 10:15PM Aug 17, 2018Observed: 17.54 ft at 10:30PM Aug 17, 2018Observed: 17.56 ft at 10:45PM Aug 17, 2018Observed: 17.58 ft at 11:00PM Aug 17, 2018Observed: 17.59 ft at 11:15PM Aug 17, 2018Observed: 17.6 ft at 11:30PM Aug 17, 2018Observed: 17.62 ft at 11:45PM Aug 17, 2018Observed: 17.63 ft at 12:00AM Aug 18, 2018Observed: 17.63 ft at 12:15AM Aug 18, 2018Observed: 17.63 ft at 12:30AM Aug 18, 2018Observed: 17.65 ft at 12:45AM Aug 18, 2018Observed: 17.66 ft at 1:00AM Aug 18, 2018Observed: 17.67 ft at 1:15AM Aug 18, 2018Observed: 17.7 ft at 1:30AM Aug 18, 2018Observed: 17.75 ft at 1:45AM Aug 18, 2018Observed: 17.87 ft at 2:00AM Aug 18, 2018Observed: 17.99 ft at 2:15AM Aug 18, 2018Observed: 18.09 ft at 2:30AM Aug 18, 2018Observed: 18.19 ft at 2:45AM Aug 18, 2018Observed: 18.29 ft at 3:00AM Aug 18, 2018Observed: 18.41 ft at 3:15AM Aug 18, 2018Observed: 18.57 ft at 3:30AM Aug 18, 2018Observed: 18.78 ft at 3:45AM Aug 18, 2018Observed: 19.02 ft at 4:00AM Aug 18, 2018Observed: 19.3 ft at 4:15AM Aug 18, 2018Observed: 19.59 ft at 4:30AM Aug 18, 2018Observed: 19.88 ft at 4:45AM Aug 18, 2018Observed: 20.17 ft at 5:00AM Aug 18, 2018Observed: 20.44 ft at 5:15AM Aug 18, 2018Observed: 20.7 ft at 5:30AM Aug 18, 2018Observed: 20.93 ft at 5:45AM Aug 18, 2018Observed: 21.14 ft at 6:00AM Aug 18, 2018Observed: 21.31 ft at 6:15AM Aug 18, 2018Observed: 21.46 ft at 6:30AM Aug 18, 2018Observed: 21.58 ft at 6:45AM Aug 18, 2018Observed: 21.66 ft at 7:00AM Aug 18, 2018Observed: 21.72 ft at 7:15AM Aug 18, 2018Observed: 21.76 ft at 7:30AM Aug 18, 2018Highest Observation: 21.77 ft at 7:45AM Aug 18, 2018Observed: 21.76 ft at 8:00AM Aug 18, 2018Observed: 21.74 ft at 8:15AM Aug 18, 2018Observed: 21.7 ft at 8:30AM Aug 18, 2018Observed: 21.64 ft at 8:45AM Aug 18, 2018Observed: 21.58 ft at 9:00AM Aug 18, 2018Observed: 21.5 ft at 9:15AM Aug 18, 2018Observed: 21.41 ft at 9:30AM Aug 18, 2018Observed: 21.32 ft at 9:45AM Aug 18, 2018Observed: 21.22 ft at 10:00AM Aug 18, 2018Observed: 21.12 ft at 10:15AM Aug 18, 2018Observed: 21.01 ft at 10:30AM Aug 18, 2018Observed: 20.91 ft at 10:45AM Aug 18, 2018Observed: 20.8 ft at 11:00AM Aug 18, 2018Observed: 20.7 ft at 11:15AM Aug 18, 2018Observed: 20.59 ft at 11:30AM Aug 18, 2018Observed: 20.49 ft at 11:45AM Aug 18, 2018Observed: 20.4 ft at 12:00PM Aug 18, 2018Observed: 20.31 ft at 12:15PM Aug 18, 2018Observed: 20.22 ft at 12:30PM Aug 18, 2018Observed: 20.14 ft at 12:45PM Aug 18, 2018Observed: 20.07 ft at 1:00PM Aug 18, 2018Observed: 20 ft at 1:15PM Aug 18, 2018Observed: 19.94 ft at 1:30PM Aug 18, 2018Observed: 19.88 ft at 1:45PM Aug 18, 2018Observed: 19.83 ft at 2:00PM Aug 18, 2018Observed: 19.78 ft at 2:15PM Aug 18, 2018Observed: 19.73 ft at 2:30PM Aug 18, 2018Observed: 19.68 ft at 2:45PM Aug 18, 2018Observed: 19.64 ft at 3:00PM Aug 18, 2018Observed: 19.6 ft at 3:15PM Aug 18, 2018Observed: 19.56 ft at 3:30PM Aug 18, 2018Observed: 19.52 ft at 3:45PM Aug 18, 2018Observed: 19.49 ft at 4:00PM Aug 18, 2018Observed: 19.45 ft at 4:15PM Aug 18, 2018Observed: 19.42 ft at 4:30PM Aug 18, 2018Observed: 19.39 ft at 4:45PM Aug 18, 2018Observed: 19.37 ft at 5:00PM Aug 18, 2018Observed: 19.35 ft at 5:15PM Aug 18, 2018Observed: 19.32 ft at 5:30PM Aug 18, 2018Observed: 19.3 ft at 5:45PM Aug 18, 2018Observed: 19.28 ft at 6:00PM Aug 18, 2018Observed: 19.26 ft at 6:15PM Aug 18, 2018Observed: 19.23 ft at 6:30PM Aug 18, 2018Observed: 19.21 ft at 6:45PM Aug 18, 2018Observed: 19.19 ft at 7:00PM Aug 18, 2018Observed: 19.16 ft at 7:15PM Aug 18, 2018Observed: 19.15 ft at 7:30PM Aug 18, 2018Observed: 19.14 ft at 7:45PM Aug 18, 2018Observed: 19.13 ft at 8:00PM Aug 18, 2018Observed: 19.14 ft at 8:15PM Aug 18, 2018Observed: 19.13 ft at 8:30PM Aug 18, 2018Observed: 19.13 ft at 8:45PM Aug 18, 2018Observed: 19.12 ft at 9:00PM Aug 18, 2018Observed: 19.11 ft at 9:15PM Aug 18, 2018Observed: 19.11 ft at 9:30PM Aug 18, 2018Observed: 19.12 ft at 9:45PM Aug 18, 2018Observed: 19.12 ft at 10:00PM Aug 18, 2018Observed: 19.13 ft at 10:15PM Aug 18, 2018Observed: 19.13 ft at 10:30PM Aug 18, 2018Observed: 19.13 ft at 10:45PM Aug 18, 2018Observed: 19.14 ft at 11:00PM Aug 18, 2018Observed: 19.14 ft at 11:15PM Aug 18, 2018Observed: 19.14 ft at 11:30PM Aug 18, 2018Observed: 19.13 ft at 11:45PM Aug 18, 2018Observed: 19.13 ft at 12:00AM Aug 19, 2018Observed: 19.11 ft at 12:15AM Aug 19, 2018Observed: 19.1 ft at 12:30AM Aug 19, 2018Observed: 19.09 ft at 12:45AM Aug 19, 2018Observed: 19.08 ft at 1:00AM Aug 19, 2018Observed: 19.07 ft at 1:15AM Aug 19, 2018Observed: 19.07 ft at 1:30AM Aug 19, 2018Observed: 19.05 ft at 1:45AM Aug 19, 2018Observed: 19.04 ft at 2:00AM Aug 19, 2018Observed: 19.03 ft at 2:15AM Aug 19, 2018Observed: 19.03 ft at 2:30AM Aug 19, 2018Observed: 19.02 ft at 2:45AM Aug 19, 2018Observed: 19 ft at 3:00AM Aug 19, 2018Observed: 18.99 ft at 3:15AM Aug 19, 2018Observed: 18.97 ft at 3:30AM Aug 19, 2018Observed: 18.96 ft at 3:45AM Aug 19, 2018Observed: 18.95 ft at 4:00AM Aug 19, 2018Observed: 18.95 ft at 4:15AM Aug 19, 2018Observed: 18.94 ft at 4:30AM Aug 19, 2018Observed: 18.93 ft at 4:45AM Aug 19, 2018Observed: 18.94 ft at 5:00AM Aug 19, 2018Observed: 18.95 ft at 5:15AM Aug 19, 2018Observed: 18.95 ft at 5:30AM Aug 19, 2018Observed: 18.94 ft at 5:45AM Aug 19, 2018Observed: 18.94 ft at 6:00AM Aug 19, 2018Observed: 18.94 ft at 6:15AM Aug 19, 2018Observed: 18.94 ft at 6:30AM Aug 19, 2018Observed: 18.93 ft at 6:45AM Aug 19, 2018Observed: 18.93 ft at 7:00AM Aug 19, 2018Observed: 18.93 ft at 7:15AM Aug 19, 2018Observed: 18.92 ft at 7:30AM Aug 19, 2018Observed: 18.91 ft at 7:45AM Aug 19, 2018Observed: 18.91 ft at 8:00AM Aug 19, 2018Observed: 18.9 ft at 8:15AM Aug 19, 2018Observed: 18.89 ft at 8:30AM Aug 19, 2018Observed: 18.87 ft at 8:45AM Aug 19, 2018Observed: 18.86 ft at 9:00AM Aug 19, 2018Observed: 18.85 ft at 9:15AM Aug 19, 2018Observed: 18.83 ft at 9:30AM Aug 19, 2018Observed: 18.82 ft at 9:45AM Aug 19, 2018Observed: 18.81 ft at 10:00AM Aug 19, 2018Observed: 18.79 ft at 10:15AM Aug 19, 2018Observed: 18.78 ft at 10:30AM Aug 19, 2018Observed: 18.77 ft at 10:45AM Aug 19, 2018Observed: 18.75 ft at 11:00AM Aug 19, 2018Observed: 18.75 ft at 11:15AM Aug 19, 2018Observed: 18.73 ft at 11:30AM Aug 19, 2018Observed: 18.72 ft at 11:45AM Aug 19, 2018Observed: 18.71 ft at 12:00PM Aug 19, 2018Observed: 18.7 ft at 12:15PM Aug 19, 2018Observed: 18.69 ft at 12:30PM Aug 19, 2018Observed: 18.67 ft at 12:45PM Aug 19, 2018Observed: 18.67 ft at 1:00PM Aug 19, 2018Observed: 18.65 ft at 1:15PM Aug 19, 2018Observed: 18.65 ft at 1:30PM Aug 19, 2018Observed: 18.63 ft at 1:45PM Aug 19, 2018Observed: 18.63 ft at 2:00PM Aug 19, 2018Observed: 18.62 ft at 2:15PM Aug 19, 2018Observed: 18.62 ft at 2:30PM Aug 19, 2018Observed: 18.62 ft at 2:45PM Aug 19, 2018Observed: 18.62 ft at 3:00PM Aug 19, 2018Observed: 18.62 ft at 3:15PM Aug 19, 2018Observed: 18.62 ft at 3:30PM Aug 19, 2018Observed: 18.62 ft at 3:45PM Aug 19, 2018Observed: 18.62 ft at 4:00PM Aug 19, 2018Observed: 18.63 ft at 4:15PM Aug 19, 2018Observed: 18.63 ft at 4:30PM Aug 19, 2018Observed: 18.65 ft at 4:45PM Aug 19, 2018Observed: 18.66 ft at 5:00PM Aug 19, 2018Observed: 18.67 ft at 5:15PM Aug 19, 2018Observed: 18.67 ft at 5:30PM Aug 19, 2018Observed: 18.69 ft at 5:45PM Aug 19, 2018Observed: 18.69 ft at 6:00PM Aug 19, 2018Observed: 18.69 ft at 6:15PM Aug 19, 2018Observed: 18.69 ft at 6:30PM Aug 19, 2018Observed: 18.69 ft at 6:45PM Aug 19, 2018Observed: 18.69 ft at 7:00PM Aug 19, 2018Observed: 18.69 ft at 7:15PM Aug 19, 2018Observed: 18.69 ft at 7:30PM Aug 19, 2018Observed: 18.69 ft at 7:45PM Aug 19, 2018Observed: 18.69 ft at 8:00PM Aug 19, 2018Observed: 18.68 ft at 8:15PM Aug 19, 2018Observed: 18.67 ft at 8:30PM Aug 19, 2018Observed: 18.67 ft at 8:45PM Aug 19, 2018Observed: 18.66 ft at 9:00PM Aug 19, 2018Observed: 18.65 ft at 9:15PM Aug 19, 2018Observed: 18.64 ft at 9:30PM Aug 19, 2018Observed: 18.63 ft at 9:45PM Aug 19, 2018Observed: 18.62 ft at 10:00PM Aug 19, 2018Observed: 18.61 ft at 10:15PM Aug 19, 2018Observed: 18.59 ft at 10:30PM Aug 19, 2018Observed: 18.59 ft at 10:45PM Aug 19, 2018Observed: 18.58 ft at 11:00PM Aug 19, 2018Observed: 18.57 ft at 11:15PM Aug 19, 2018Observed: 18.57 ft at 11:30PM Aug 19, 2018Observed: 18.55 ft at 11:45PM Aug 19, 2018Observed: 18.55 ft at 12:00AM Aug 20, 2018Observed: 18.54 ft at 12:15AM Aug 20, 2018Observed: 18.53 ft at 12:30AM Aug 20, 2018Observed: 18.52 ft at 12:45AM Aug 20, 2018Observed: 18.51 ft at 1:00AM Aug 20, 2018Observed: 18.51 ft at 1:15AM Aug 20, 2018Observed: 18.49 ft at 1:30AM Aug 20, 2018Observed: 18.48 ft at 1:45AM Aug 20, 2018Observed: 18.47 ft at 2:00AM Aug 20, 2018Observed: 18.46 ft at 2:15AM Aug 20, 2018Observed: 18.45 ft at 2:30AM Aug 20, 2018Observed: 18.44 ft at 2:45AM Aug 20, 2018Observed: 18.43 ft at 3:00AM Aug 20, 2018Observed: 18.42 ft at 3:15AM Aug 20, 2018Observed: 18.41 ft at 3:30AM Aug 20, 2018Observed: 18.4 ft at 3:45AM Aug 20, 2018Observed: 18.39 ft at 4:00AM Aug 20, 2018Observed: 18.38 ft at 4:15AM Aug 20, 2018Observed: 18.36 ft at 4:30AM Aug 20, 2018Observed: 18.35 ft at 4:45AM Aug 20, 2018Observed: 18.34 ft at 5:00AM Aug 20, 2018Observed: 18.33 ft at 5:15AM Aug 20, 2018Observed: 18.32 ft at 5:30AM Aug 20, 2018Observed: 18.31 ft at 5:45AM Aug 20, 2018Observed: 18.31 ft at 6:00AM Aug 20, 2018Observed: 18.3 ft at 6:15AM Aug 20, 2018Observed: 18.3 ft at 6:30AM Aug 20, 2018Observed: 18.29 ft at 6:45AM Aug 20, 2018Observed: 18.28 ft at 7:00AM Aug 20, 2018Observed: 18.27 ft at 7:15AM Aug 20, 2018Observed: 18.26 ft at 7:30AM Aug 20, 2018Observed: 18.25 ft at 7:45AM Aug 20, 2018Observed: 18.25 ft at 8:00AM Aug 20, 2018Observed: 18.24 ft at 8:15AM Aug 20, 2018Forecast: 17.9 ft 2:00PM Aug 20, 2018Forecast: 17.8 ft 8:00PM Aug 20, 2018Forecast: 17.7 ft 2:00AM Aug 21, 2018Forecast: 17.6 ft 8:00AM Aug 21, 2018Forecast: 17.5 ft 2:00PM Aug 21, 2018Forecast: 17.5 ft 8:00PM Aug 21, 2018Forecast: 17.7 ft 2:00AM Aug 22, 2018Highest Forecast: 18 ft 8:00AM Aug 22, 2018USGS--Water Resources of the United StatesBDKN4(plotting HGIRG) Graph Created (9:03AM Aug 20, 2018)ObservedForecast (issued 9:32AM Aug 19)Latest observed value: 18.24 ft at 8:15 AM EDT 20-Aug-2018. Flood Stage is 28 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Raritan River at Bound Brook are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Manville Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 33
Moderate Flood Stage: 30
Flood Stage: 28
Action Stage: 26
Low Stage (in feet): 0

Historic Crests
(1) 42.13 ft on 09/17/1999
(2) 41.90 ft on 08/28/2011
(3) 38.38 ft on 04/16/2007
(4) 37.47 ft on 08/28/1971
(5) 36.04 ft on 03/14/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 34.65 ft on 05/01/2014
(2) 33.14 ft on 09/09/2011
(3) 41.90 ft on 08/28/2011
(4) 31.10 ft on 04/17/2011
(5) 28.49 ft on 03/11/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 16.10 ft on 07/09/1993

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
33 A large portion of Bouond Brook is protected by the flood reduction project. Pump station operations become critical, at this stage, for the continued protection of the borough.
30 Main Street is protected by flap valves/sluice gates. This level triggers the gate closures to protect Main Street.
28 Backyard and low areas are protected by levees and the flood wall. Without the levees or if there is a breach in the levees, minor flooding will occur.
About This Location Collapse

Latitude: 40.551111° N, Longitude: 74.548333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 28 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 0 ft 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
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
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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
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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