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Hydrograph River at a Glance Download
Rockaway River at Boonton above reservoir Stage (ft)Flow (cfs)Observed: 1.28 ft at 6:00PM Apr 28, 2024Observed: 1.28 ft at 6:15PM Apr 28, 2024Observed: 1.28 ft at 6:30PM Apr 28, 2024Observed: 1.27 ft at 6:45PM Apr 28, 2024Observed: 1.27 ft at 7:00PM Apr 28, 2024Observed: 1.27 ft at 7:15PM Apr 28, 2024Observed: 1.28 ft at 7:30PM Apr 28, 2024Observed: 1.28 ft at 7:45PM Apr 28, 2024Observed: 1.27 ft at 8:00PM Apr 28, 2024Observed: 1.28 ft at 8:15PM Apr 28, 2024Observed: 1.28 ft at 8:30PM Apr 28, 2024Observed: 1.27 ft at 8:45PM Apr 28, 2024Observed: 1.27 ft at 9:00PM Apr 28, 2024Observed: 1.27 ft at 9:15PM Apr 28, 2024Observed: 1.27 ft at 9:30PM Apr 28, 2024Observed: 1.28 ft at 9:45PM Apr 28, 2024Observed: 1.28 ft at 10:00PM Apr 28, 2024Observed: 1.28 ft at 10:15PM Apr 28, 2024Observed: 1.27 ft at 10:30PM Apr 28, 2024Observed: 1.27 ft at 10:45PM Apr 28, 2024Observed: 1.28 ft at 11:00PM Apr 28, 2024Observed: 1.28 ft at 11:15PM Apr 28, 2024Observed: 1.28 ft at 11:30PM Apr 28, 2024Observed: 1.28 ft at 11:45PM Apr 28, 2024Observed: 1.28 ft at 12:00AM Apr 29, 2024Observed: 1.29 ft at 12:15AM Apr 29, 2024Observed: 1.29 ft at 12:30AM Apr 29, 2024Observed: 1.3 ft at 12:45AM Apr 29, 2024Observed: 1.31 ft at 1:00AM Apr 29, 2024Observed: 1.31 ft at 1:15AM Apr 29, 2024Observed: 1.32 ft at 1:30AM Apr 29, 2024Observed: 1.33 ft at 1:45AM Apr 29, 2024Observed: 1.33 ft at 2:00AM Apr 29, 2024Observed: 1.34 ft at 2:15AM Apr 29, 2024Observed: 1.34 ft at 2:30AM Apr 29, 2024Observed: 1.35 ft at 2:45AM Apr 29, 2024Observed: 1.35 ft at 3:00AM Apr 29, 2024Observed: 1.35 ft at 3:15AM Apr 29, 2024Observed: 1.35 ft at 3:30AM Apr 29, 2024Observed: 1.35 ft at 3:45AM Apr 29, 2024Observed: 1.35 ft at 4:00AM Apr 29, 2024Observed: 1.35 ft at 4:15AM Apr 29, 2024Observed: 1.35 ft at 4:30AM Apr 29, 2024Observed: 1.35 ft at 4:45AM Apr 29, 2024Observed: 1.35 ft at 5:00AM Apr 29, 2024Observed: 1.35 ft at 5:15AM Apr 29, 2024Observed: 1.35 ft at 5:30AM Apr 29, 2024Observed: 1.35 ft at 5:45AM Apr 29, 2024Observed: 1.35 ft at 6:00AM Apr 29, 2024Observed: 1.35 ft at 6:15AM Apr 29, 2024Observed: 1.35 ft at 6:30AM Apr 29, 2024Observed: 1.34 ft at 6:45AM Apr 29, 2024Observed: 1.34 ft at 7:00AM Apr 29, 2024Observed: 1.34 ft at 7:15AM Apr 29, 2024Observed: 1.34 ft at 7:30AM Apr 29, 2024Observed: 1.34 ft at 7:45AM Apr 29, 2024Observed: 1.34 ft at 8:00AM Apr 29, 2024Observed: 1.34 ft at 8:15AM Apr 29, 2024Observed: 1.34 ft at 8:30AM Apr 29, 2024Observed: 1.34 ft at 8:45AM Apr 29, 2024Observed: 1.34 ft at 9:00AM Apr 29, 2024Observed: 1.34 ft at 9:15AM Apr 29, 2024Observed: 1.34 ft at 9:30AM Apr 29, 2024Observed: 1.34 ft at 9:45AM Apr 29, 2024Observed: 1.34 ft at 10:00AM Apr 29, 2024Observed: 1.34 ft at 10:15AM Apr 29, 2024Observed: 1.34 ft at 10:30AM Apr 29, 2024Observed: 1.33 ft at 10:45AM Apr 29, 2024Observed: 1.33 ft at 11:00AM Apr 29, 2024Observed: 1.33 ft at 11:15AM Apr 29, 2024Observed: 1.33 ft at 11:30AM Apr 29, 2024Observed: 1.33 ft at 11:45AM Apr 29, 2024Observed: 1.33 ft at 12:00PM Apr 29, 2024Observed: 1.33 ft at 12:15PM Apr 29, 2024Observed: 1.33 ft at 12:30PM Apr 29, 2024Observed: 1.33 ft at 12:45PM Apr 29, 2024Observed: 1.33 ft at 1:00PM Apr 29, 2024Observed: 1.33 ft at 1:15PM Apr 29, 2024Observed: 1.33 ft at 1:30PM Apr 29, 2024Observed: 1.32 ft at 1:45PM Apr 29, 2024Observed: 1.32 ft at 2:00PM Apr 29, 2024Observed: 1.32 ft at 2:15PM Apr 29, 2024Observed: 1.32 ft at 2:30PM Apr 29, 2024Observed: 1.32 ft at 2:45PM Apr 29, 2024Observed: 1.32 ft at 3:00PM Apr 29, 2024Observed: 1.32 ft at 3:15PM Apr 29, 2024Observed: 1.31 ft at 3:30PM Apr 29, 2024Observed: 1.31 ft at 3:45PM Apr 29, 2024Observed: 1.31 ft at 4:00PM Apr 29, 2024Observed: 1.31 ft at 4:15PM Apr 29, 2024Observed: 1.31 ft at 4:30PM Apr 29, 2024Observed: 1.31 ft at 4:45PM Apr 29, 2024Observed: 1.31 ft at 5:00PM Apr 29, 2024Observed: 1.31 ft at 5:15PM Apr 29, 2024Observed: 1.31 ft at 5:30PM Apr 29, 2024Observed: 1.31 ft at 5:45PM Apr 29, 2024Observed: 1.31 ft at 6:00PM Apr 29, 2024Observed: 1.31 ft at 6:15PM Apr 29, 2024Observed: 1.3 ft at 6:30PM Apr 29, 2024Observed: 1.3 ft at 6:45PM Apr 29, 2024Observed: 1.3 ft at 7:00PM Apr 29, 2024Observed: 1.3 ft at 7:15PM Apr 29, 2024Observed: 1.3 ft at 7:30PM Apr 29, 2024Observed: 1.3 ft at 7:45PM Apr 29, 2024Observed: 1.3 ft at 8:00PM Apr 29, 2024Observed: 1.3 ft at 8:15PM Apr 29, 2024Observed: 1.3 ft at 8:30PM Apr 29, 2024Observed: 1.3 ft at 8:45PM Apr 29, 2024Observed: 1.3 ft at 9:00PM Apr 29, 2024Observed: 1.29 ft at 9:15PM Apr 29, 2024Observed: 1.29 ft at 9:30PM Apr 29, 2024Observed: 1.29 ft at 9:45PM Apr 29, 2024Observed: 1.29 ft at 10:00PM Apr 29, 2024Observed: 1.29 ft at 10:15PM Apr 29, 2024Observed: 1.29 ft at 10:30PM Apr 29, 2024Observed: 1.29 ft at 10:45PM Apr 29, 2024Observed: 1.29 ft at 11:00PM Apr 29, 2024Observed: 1.29 ft at 11:15PM Apr 29, 2024Observed: 1.29 ft at 11:30PM Apr 29, 2024Observed: 1.29 ft at 11:45PM Apr 29, 2024Observed: 1.29 ft at 12:00AM Apr 30, 2024Observed: 1.29 ft at 12:15AM Apr 30, 2024Observed: 1.29 ft at 12:30AM Apr 30, 2024Observed: 1.29 ft at 12:45AM Apr 30, 2024Observed: 1.29 ft at 1:00AM Apr 30, 2024Observed: 1.29 ft at 1:15AM Apr 30, 2024Observed: 1.29 ft at 1:30AM Apr 30, 2024Observed: 1.29 ft at 1:45AM Apr 30, 2024Observed: 1.29 ft at 2:00AM Apr 30, 2024Observed: 1.28 ft at 2:15AM Apr 30, 2024Observed: 1.28 ft at 2:30AM Apr 30, 2024Observed: 1.28 ft at 2:45AM Apr 30, 2024Observed: 1.28 ft at 3:00AM Apr 30, 2024Observed: 1.28 ft at 3:15AM Apr 30, 2024Observed: 1.28 ft at 3:30AM Apr 30, 2024Observed: 1.28 ft at 3:45AM Apr 30, 2024Observed: 1.28 ft at 4:00AM Apr 30, 2024Observed: 1.28 ft at 4:15AM Apr 30, 2024Observed: 1.28 ft at 4:30AM Apr 30, 2024Observed: 1.28 ft at 4:45AM Apr 30, 2024Observed: 1.28 ft at 5:00AM Apr 30, 2024Observed: 1.28 ft at 5:15AM Apr 30, 2024Observed: 1.28 ft at 5:30AM Apr 30, 2024Observed: 1.28 ft at 5:45AM Apr 30, 2024Observed: 1.27 ft at 6:00AM Apr 30, 2024Observed: 1.28 ft at 6:15AM Apr 30, 2024Observed: 1.27 ft at 6:30AM Apr 30, 2024Observed: 1.27 ft at 6:45AM Apr 30, 2024Observed: 1.27 ft at 7:00AM Apr 30, 2024Observed: 1.27 ft at 7:15AM Apr 30, 2024Observed: 1.27 ft at 7:30AM Apr 30, 2024Observed: 1.27 ft at 7:45AM Apr 30, 2024Observed: 1.27 ft at 8:00AM Apr 30, 2024Observed: 1.27 ft at 8:15AM Apr 30, 2024Observed: 1.27 ft at 8:30AM Apr 30, 2024Observed: 1.27 ft at 8:45AM Apr 30, 2024Observed: 1.27 ft at 9:00AM Apr 30, 2024Observed: 1.27 ft at 9:15AM Apr 30, 2024Observed: 1.27 ft at 9:30AM Apr 30, 2024Observed: 1.27 ft at 9:45AM Apr 30, 2024Observed: 1.27 ft at 10:00AM Apr 30, 2024Observed: 1.27 ft at 10:15AM Apr 30, 2024Observed: 1.27 ft at 10:30AM Apr 30, 2024Observed: 1.27 ft at 10:45AM Apr 30, 2024Observed: 1.26 ft at 11:00AM Apr 30, 2024Observed: 1.27 ft at 11:15AM Apr 30, 2024Observed: 1.27 ft at 11:30AM Apr 30, 2024Observed: 1.27 ft at 11:45AM Apr 30, 2024Observed: 1.26 ft at 12:00PM Apr 30, 2024Observed: 1.27 ft at 12:15PM Apr 30, 2024Observed: 1.27 ft at 12:30PM Apr 30, 2024Observed: 1.26 ft at 12:45PM Apr 30, 2024Observed: 1.27 ft at 1:00PM Apr 30, 2024Observed: 1.26 ft at 1:15PM Apr 30, 2024Observed: 1.26 ft at 1:30PM Apr 30, 2024Observed: 1.27 ft at 1:45PM Apr 30, 2024Observed: 1.26 ft at 2:00PM Apr 30, 2024Observed: 1.26 ft at 2:15PM Apr 30, 2024Observed: 1.26 ft at 2:30PM Apr 30, 2024Observed: 1.26 ft at 2:45PM Apr 30, 2024Observed: 1.26 ft at 3:00PM Apr 30, 2024Observed: 1.26 ft at 3:15PM Apr 30, 2024Observed: 1.26 ft at 3:30PM Apr 30, 2024Observed: 1.26 ft at 3:45PM Apr 30, 2024Observed: 1.26 ft at 4:00PM Apr 30, 2024Observed: 1.26 ft at 4:15PM Apr 30, 2024Observed: 1.26 ft at 4:30PM Apr 30, 2024Observed: 1.26 ft at 4:45PM Apr 30, 2024Observed: 1.26 ft at 5:00PM Apr 30, 2024Observed: 1.26 ft at 5:15PM Apr 30, 2024Observed: 1.26 ft at 5:30PM Apr 30, 2024Observed: 1.26 ft at 5:45PM Apr 30, 2024Observed: 1.26 ft at 6:00PM Apr 30, 2024Observed: 1.26 ft at 6:15PM Apr 30, 2024Observed: 1.26 ft at 6:30PM Apr 30, 2024Observed: 1.26 ft at 6:45PM Apr 30, 2024Observed: 1.26 ft at 7:00PM Apr 30, 2024Observed: 1.26 ft at 7:15PM Apr 30, 2024Observed: 1.26 ft at 7:30PM Apr 30, 2024Observed: 1.26 ft at 7:45PM Apr 30, 2024Observed: 1.26 ft at 8:00PM Apr 30, 2024Observed: 1.26 ft at 8:15PM Apr 30, 2024Observed: 1.26 ft at 8:30PM Apr 30, 2024Observed: 1.26 ft at 8:45PM Apr 30, 2024Observed: 1.26 ft at 9:00PM Apr 30, 2024Observed: 1.28 ft at 9:15PM Apr 30, 2024Observed: 1.29 ft at 9:30PM Apr 30, 2024Observed: 1.29 ft at 9:45PM Apr 30, 2024Observed: 1.29 ft at 10:00PM Apr 30, 2024Observed: 1.29 ft at 10:15PM Apr 30, 2024Observed: 1.29 ft at 10:30PM Apr 30, 2024Observed: 1.29 ft at 10:45PM Apr 30, 2024Observed: 1.29 ft at 11:00PM Apr 30, 2024Observed: 1.29 ft at 11:15PM Apr 30, 2024Observed: 1.3 ft at 11:30PM Apr 30, 2024Observed: 1.3 ft at 11:45PM Apr 30, 2024Observed: 1.31 ft at 12:00AM May 01, 2024Observed: 1.32 ft at 12:15AM May 01, 2024Observed: 1.32 ft at 12:30AM May 01, 2024Observed: 1.33 ft at 12:45AM May 01, 2024Observed: 1.34 ft at 1:00AM May 01, 2024Observed: 1.36 ft at 1:15AM May 01, 2024Observed: 1.37 ft at 1:30AM May 01, 2024Observed: 1.38 ft at 1:45AM May 01, 2024Observed: 1.39 ft at 2:00AM May 01, 2024Observed: 1.41 ft at 2:15AM May 01, 2024Observed: 1.42 ft at 2:30AM May 01, 2024Observed: 1.42 ft at 2:45AM May 01, 2024Observed: 1.43 ft at 3:00AM May 01, 2024Observed: 1.44 ft at 3:15AM May 01, 2024Observed: 1.45 ft at 3:30AM May 01, 2024Observed: 1.45 ft at 3:45AM May 01, 2024Observed: 1.46 ft at 4:00AM May 01, 2024Observed: 1.46 ft at 4:15AM May 01, 2024Observed: 1.46 ft at 4:30AM May 01, 2024Observed: 1.46 ft at 4:45AM May 01, 2024Observed: 1.46 ft at 5:00AM May 01, 2024Highest Observation: 1.47 ft at 5:15AM May 01, 2024Highest Observation: 1.47 ft at 5:30AM May 01, 2024Highest Observation: 1.47 ft at 5:45AM May 01, 2024Highest Observation: 1.47 ft at 6:00AM May 01, 2024Highest Observation: 1.47 ft at 6:15AM May 01, 2024Observed: 1.46 ft at 6:30AM May 01, 2024Observed: 1.46 ft at 6:45AM May 01, 2024Observed: 1.46 ft at 7:00AM May 01, 2024Observed: 1.46 ft at 7:15AM May 01, 2024Observed: 1.46 ft at 7:30AM May 01, 2024Observed: 1.46 ft at 7:45AM May 01, 2024Observed: 1.45 ft at 8:00AM May 01, 2024Observed: 1.45 ft at 8:15AM May 01, 2024Observed: 1.45 ft at 8:30AM May 01, 2024Observed: 1.44 ft at 8:45AM May 01, 2024Observed: 1.44 ft at 9:00AM May 01, 2024Observed: 1.44 ft at 9:15AM May 01, 2024Observed: 1.44 ft at 9:30AM May 01, 2024Observed: 1.44 ft at 9:45AM May 01, 2024Observed: 1.43 ft at 10:00AM May 01, 2024Observed: 1.43 ft at 10:15AM May 01, 2024Observed: 1.43 ft at 10:30AM May 01, 2024Observed: 1.43 ft at 10:45AM May 01, 2024Observed: 1.42 ft at 11:00AM May 01, 2024Observed: 1.42 ft at 11:15AM May 01, 2024Observed: 1.42 ft at 11:30AM May 01, 2024Observed: 1.42 ft at 11:45AM May 01, 2024Observed: 1.42 ft at 12:00PM May 01, 2024Observed: 1.42 ft at 12:15PM May 01, 2024Observed: 1.41 ft at 12:30PM May 01, 2024Observed: 1.41 ft at 12:45PM May 01, 2024Observed: 1.41 ft at 1:00PM May 01, 2024Observed: 1.41 ft at 1:15PM May 01, 2024Observed: 1.4 ft at 1:30PM May 01, 2024Observed: 1.4 ft at 1:45PM May 01, 2024Observed: 1.4 ft at 2:00PM May 01, 2024Observed: 1.4 ft at 2:15PM May 01, 2024Observed: 1.4 ft at 2:30PM May 01, 2024Observed: 1.4 ft at 2:45PM May 01, 2024Observed: 1.39 ft at 3:00PM May 01, 2024Observed: 1.39 ft at 3:15PM May 01, 2024Observed: 1.39 ft at 3:30PM May 01, 2024Observed: 1.39 ft at 3:45PM May 01, 2024Observed: 1.38 ft at 4:00PM May 01, 2024Observed: 1.39 ft at 4:15PM May 01, 2024Observed: 1.38 ft at 4:30PM May 01, 2024Highest Forecast: 1.3 ft 8:00PM May 01, 2024Highest Forecast: 1.3 ft 2:00AM May 02, 2024Highest Forecast: 1.3 ft 8:00AM May 02, 2024Highest Forecast: 1.3 ft 2:00PM May 02, 2024Forecast: 1.2 ft 8:00PM May 02, 2024Forecast: 1.2 ft 2:00AM May 03, 2024Forecast: 1.2 ft 8:00AM May 03, 2024Forecast: 1.2 ft 2:00PM May 03, 2024Forecast: 1.2 ft 8:00PM May 03, 2024Forecast: 1.2 ft 2:00AM May 04, 2024Forecast: 1.2 ft 8:00AM May 04, 2024USGS--Water Resources of the United StatesBOTN4(plotting HGIRG) Graph Created (5:48PM May 1, 2024)ObservedForecast (issued 9:59AM May 1)Latest observed value: 1.38 ft at 4:30 PM EDT 1-May-2024. Flood Stage is 4.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Rockaway River at Boonton above reservoir are issued routinely year-round.
Return to Area Map
Downstream Gauge Downstream Gauge - at Boonton
Flood Categories (in feet)
Major Flood Stage: 7
Moderate Flood Stage: 6
Flood Stage: 4.5
Action Stage: 3.5
Low Stage (in feet): 0

Historic Crests
(1) 4.71 ft on 12/18/2023
(2) 4.67 ft on 01/10/2024
(3) 3.70 ft on 05/01/2014

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.67 ft on 01/10/2024
(2) 4.71 ft on 12/18/2023
(3) 3.70 ft on 05/01/2014

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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
10 Main Street businesses in Denville experience several feet of water.
9 Businesses on Main Street in Denville begin to flood. Sections of Boonton (municipality) begin to flood.
8 Interstate Route 80 in Denville floods. Portions of Dover Township are under several feet of water.
7 Park's Lake area in Denville is flooded. Residents near Savage Road in Denville take on water. Residential areas in Dover Township adjacent to the river experience significant flooding.
6 Main Street in Rockaway is flooded. Jackson Avenue in Rockaway is flooded. Water backs up and comes through the sewer system. Main Street in Denville begins to flood. Gardner Park in Denville experiences significant flooding. Football and baseball fields are submerged in several feet of water. Portions of Boonton Township begin to flood.
5.5 The main parking lot at St. Clare's Hospital begins to flood.
5 Savage Road and other roads around Gardner Park in Denville flood.
3.5 The Rockaway River leaves its banks and floods adjacent parks and trails in Denville including Gardner park.
2 The Rockaway River leaves its banks and begins to flood the river parking lot at St. Clare's Hospital.
About This Location Collapse

Latitude: 40.907500° N, Longitude: 74.419167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 4.5 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 479 483.5 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 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) 10 Day (NAEFS) 10 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.

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
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Mount Holly, NJ 08060-9615
(609) 261-6600
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