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Hydrograph River at a Glance Download
Rockaway River at Boonton below reservoir Stage (ft)Flow (kcfs)Observed: 4 ft at 2:30AM Apr 15, 2024Observed: 4 ft at 2:45AM Apr 15, 2024Highest Observation: 4.02 ft at 3:00AM Apr 15, 2024Observed: 4.01 ft at 3:15AM Apr 15, 2024Observed: 3.99 ft at 3:30AM Apr 15, 2024Observed: 4 ft at 3:45AM Apr 15, 2024Observed: 4.01 ft at 4:00AM Apr 15, 2024Observed: 3.99 ft at 4:15AM Apr 15, 2024Observed: 3.97 ft at 4:30AM Apr 15, 2024Observed: 3.99 ft at 4:45AM Apr 15, 2024Observed: 4 ft at 5:00AM Apr 15, 2024Observed: 3.97 ft at 5:15AM Apr 15, 2024Observed: 3.97 ft at 5:30AM Apr 15, 2024Observed: 3.98 ft at 5:45AM Apr 15, 2024Observed: 3.98 ft at 6:00AM Apr 15, 2024Observed: 3.97 ft at 6:15AM Apr 15, 2024Observed: 3.98 ft at 6:30AM Apr 15, 2024Observed: 3.98 ft at 6:45AM Apr 15, 2024Observed: 3.96 ft at 7:00AM Apr 15, 2024Observed: 3.97 ft at 7:15AM Apr 15, 2024Observed: 3.98 ft at 7:30AM Apr 15, 2024Observed: 3.97 ft at 7:45AM Apr 15, 2024Observed: 3.96 ft at 8:00AM Apr 15, 2024Observed: 3.96 ft at 8:15AM Apr 15, 2024Observed: 3.97 ft at 8:30AM Apr 15, 2024Observed: 3.95 ft at 8:45AM Apr 15, 2024Observed: 3.95 ft at 9:00AM Apr 15, 2024Observed: 3.96 ft at 9:15AM Apr 15, 2024Observed: 3.96 ft at 9:30AM Apr 15, 2024Observed: 3.94 ft at 9:45AM Apr 15, 2024Observed: 3.95 ft at 10:00AM Apr 15, 2024Observed: 3.95 ft at 10:15AM Apr 15, 2024Observed: 3.95 ft at 10:30AM Apr 15, 2024Observed: 3.93 ft at 10:45AM Apr 15, 2024Observed: 3.93 ft at 11:00AM Apr 15, 2024Observed: 3.94 ft at 11:15AM Apr 15, 2024Observed: 3.93 ft at 11:30AM Apr 15, 2024Observed: 3.93 ft at 11:45AM Apr 15, 2024Observed: 3.94 ft at 12:00PM Apr 15, 2024Observed: 3.93 ft at 12:15PM Apr 15, 2024Observed: 3.92 ft at 12:30PM Apr 15, 2024Observed: 3.92 ft at 12:45PM Apr 15, 2024Observed: 3.93 ft at 1:00PM Apr 15, 2024Observed: 3.92 ft at 1:15PM Apr 15, 2024Observed: 3.91 ft at 1:30PM Apr 15, 2024Observed: 3.93 ft at 1:45PM Apr 15, 2024Observed: 3.92 ft at 2:00PM Apr 15, 2024Observed: 3.91 ft at 2:15PM Apr 15, 2024Observed: 3.91 ft at 2:30PM Apr 15, 2024Observed: 3.9 ft at 2:45PM Apr 15, 2024Observed: 3.9 ft at 3:00PM Apr 15, 2024Observed: 3.89 ft at 3:15PM Apr 15, 2024Observed: 3.89 ft at 3:30PM Apr 15, 2024Observed: 3.88 ft at 3:45PM Apr 15, 2024Observed: 3.88 ft at 4:00PM Apr 15, 2024Observed: 3.87 ft at 4:15PM Apr 15, 2024Observed: 3.88 ft at 4:30PM Apr 15, 2024Observed: 3.88 ft at 4:45PM Apr 15, 2024Observed: 3.86 ft at 5:00PM Apr 15, 2024Observed: 3.87 ft at 5:15PM Apr 15, 2024Observed: 3.87 ft at 5:30PM Apr 15, 2024Observed: 3.87 ft at 5:45PM Apr 15, 2024Observed: 3.86 ft at 6:00PM Apr 15, 2024Observed: 3.86 ft at 6:15PM Apr 15, 2024Observed: 3.85 ft at 6:30PM Apr 15, 2024Observed: 3.86 ft at 6:45PM Apr 15, 2024Observed: 3.85 ft at 7:00PM Apr 15, 2024Observed: 3.86 ft at 7:15PM Apr 15, 2024Observed: 3.85 ft at 7:30PM Apr 15, 2024Observed: 3.84 ft at 7:45PM Apr 15, 2024Observed: 3.83 ft at 8:00PM Apr 15, 2024Observed: 3.83 ft at 8:15PM Apr 15, 2024Observed: 3.82 ft at 8:30PM Apr 15, 2024Observed: 3.82 ft at 8:45PM Apr 15, 2024Observed: 3.81 ft at 9:00PM Apr 15, 2024Observed: 3.81 ft at 9:15PM Apr 15, 2024Observed: 3.81 ft at 9:30PM Apr 15, 2024Observed: 3.81 ft at 9:45PM Apr 15, 2024Observed: 3.81 ft at 10:00PM Apr 15, 2024Observed: 3.8 ft at 10:15PM Apr 15, 2024Observed: 3.8 ft at 10:30PM Apr 15, 2024Observed: 3.79 ft at 10:45PM Apr 15, 2024Observed: 3.8 ft at 11:00PM Apr 15, 2024Observed: 3.79 ft at 11:15PM Apr 15, 2024Observed: 3.79 ft at 11:30PM Apr 15, 2024Observed: 3.79 ft at 11:45PM Apr 15, 2024Observed: 3.79 ft at 12:00AM Apr 16, 2024Observed: 3.79 ft at 12:15AM Apr 16, 2024Observed: 3.79 ft at 12:30AM Apr 16, 2024Observed: 3.79 ft at 12:45AM Apr 16, 2024Observed: 3.79 ft at 1:00AM Apr 16, 2024Observed: 3.78 ft at 1:15AM Apr 16, 2024Observed: 3.78 ft at 1:30AM Apr 16, 2024Observed: 3.78 ft at 1:45AM Apr 16, 2024Observed: 3.78 ft at 2:00AM Apr 16, 2024Observed: 3.77 ft at 2:15AM Apr 16, 2024Observed: 3.77 ft at 2:30AM Apr 16, 2024Observed: 3.77 ft at 2:45AM Apr 16, 2024Observed: 3.77 ft at 3:00AM Apr 16, 2024Observed: 3.77 ft at 3:15AM Apr 16, 2024Observed: 3.76 ft at 3:30AM Apr 16, 2024Observed: 3.76 ft at 3:45AM Apr 16, 2024Observed: 3.76 ft at 4:00AM Apr 16, 2024Observed: 3.76 ft at 4:15AM Apr 16, 2024Observed: 3.76 ft at 4:30AM Apr 16, 2024Observed: 3.75 ft at 4:45AM Apr 16, 2024Observed: 3.75 ft at 5:00AM Apr 16, 2024Observed: 3.75 ft at 5:15AM Apr 16, 2024Observed: 3.75 ft at 5:30AM Apr 16, 2024Observed: 3.75 ft at 5:45AM Apr 16, 2024Observed: 3.74 ft at 6:00AM Apr 16, 2024Observed: 3.74 ft at 6:15AM Apr 16, 2024Observed: 3.74 ft at 6:30AM Apr 16, 2024Observed: 3.74 ft at 6:45AM Apr 16, 2024Observed: 3.74 ft at 7:00AM Apr 16, 2024Observed: 3.73 ft at 7:15AM Apr 16, 2024Observed: 3.72 ft at 7:30AM Apr 16, 2024Observed: 3.72 ft at 7:45AM Apr 16, 2024Observed: 3.72 ft at 8:00AM Apr 16, 2024Observed: 3.72 ft at 8:15AM Apr 16, 2024Observed: 3.72 ft at 8:30AM Apr 16, 2024Observed: 3.71 ft at 8:45AM Apr 16, 2024Observed: 3.71 ft at 9:00AM Apr 16, 2024Observed: 3.7 ft at 9:15AM Apr 16, 2024Observed: 3.7 ft at 9:30AM Apr 16, 2024Observed: 3.7 ft at 9:45AM Apr 16, 2024Observed: 3.69 ft at 10:00AM Apr 16, 2024Observed: 3.69 ft at 10:15AM Apr 16, 2024Observed: 3.68 ft at 10:30AM Apr 16, 2024Observed: 3.68 ft at 10:45AM Apr 16, 2024Observed: 3.68 ft at 11:00AM Apr 16, 2024Observed: 3.68 ft at 11:15AM Apr 16, 2024Observed: 3.68 ft at 11:30AM Apr 16, 2024Observed: 3.67 ft at 11:45AM Apr 16, 2024Observed: 3.67 ft at 12:00PM Apr 16, 2024Observed: 3.67 ft at 12:15PM Apr 16, 2024Observed: 3.67 ft at 12:30PM Apr 16, 2024Observed: 3.67 ft at 12:45PM Apr 16, 2024Observed: 3.66 ft at 1:00PM Apr 16, 2024Observed: 3.67 ft at 1:15PM Apr 16, 2024Observed: 3.68 ft at 1:30PM Apr 16, 2024Observed: 3.66 ft at 1:45PM Apr 16, 2024Observed: 3.66 ft at 2:00PM Apr 16, 2024Observed: 3.66 ft at 2:15PM Apr 16, 2024Observed: 3.64 ft at 2:30PM Apr 16, 2024Observed: 3.64 ft at 2:45PM Apr 16, 2024Observed: 3.65 ft at 3:00PM Apr 16, 2024Observed: 3.64 ft at 3:15PM Apr 16, 2024Observed: 3.63 ft at 3:30PM Apr 16, 2024Observed: 3.64 ft at 3:45PM Apr 16, 2024Observed: 3.64 ft at 4:00PM Apr 16, 2024Observed: 3.63 ft at 4:15PM Apr 16, 2024Observed: 3.62 ft at 4:30PM Apr 16, 2024Observed: 3.64 ft at 4:45PM Apr 16, 2024Observed: 3.63 ft at 5:00PM Apr 16, 2024Observed: 3.61 ft at 5:15PM Apr 16, 2024Observed: 3.62 ft at 5:30PM Apr 16, 2024Observed: 3.63 ft at 5:45PM Apr 16, 2024Observed: 3.61 ft at 6:00PM Apr 16, 2024Observed: 3.6 ft at 6:15PM Apr 16, 2024Observed: 3.61 ft at 6:30PM Apr 16, 2024Observed: 3.61 ft at 6:45PM Apr 16, 2024Observed: 3.59 ft at 7:00PM Apr 16, 2024Observed: 3.6 ft at 7:15PM Apr 16, 2024Observed: 3.61 ft at 7:30PM Apr 16, 2024Observed: 3.6 ft at 7:45PM Apr 16, 2024Observed: 3.59 ft at 8:00PM Apr 16, 2024Observed: 3.59 ft at 8:15PM Apr 16, 2024Observed: 3.6 ft at 8:30PM Apr 16, 2024Observed: 3.59 ft at 8:45PM Apr 16, 2024Observed: 3.58 ft at 9:00PM Apr 16, 2024Observed: 3.59 ft at 9:15PM Apr 16, 2024Observed: 3.6 ft at 9:30PM Apr 16, 2024Observed: 3.59 ft at 9:45PM Apr 16, 2024Observed: 3.59 ft at 10:00PM Apr 16, 2024Observed: 3.59 ft at 10:15PM Apr 16, 2024Observed: 3.59 ft at 10:30PM Apr 16, 2024Observed: 3.58 ft at 10:45PM Apr 16, 2024Observed: 3.59 ft at 11:00PM Apr 16, 2024Observed: 3.59 ft at 11:15PM Apr 16, 2024Observed: 3.58 ft at 11:30PM Apr 16, 2024Observed: 3.58 ft at 11:45PM Apr 16, 2024Observed: 3.58 ft at 12:00AM Apr 17, 2024Observed: 3.58 ft at 12:15AM Apr 17, 2024Observed: 3.58 ft at 12:30AM Apr 17, 2024Observed: 3.57 ft at 12:45AM Apr 17, 2024Observed: 3.58 ft at 1:00AM Apr 17, 2024Observed: 3.57 ft at 1:15AM Apr 17, 2024Observed: 3.57 ft at 1:30AM Apr 17, 2024Observed: 3.57 ft at 1:45AM Apr 17, 2024Observed: 3.57 ft at 2:00AM Apr 17, 2024Observed: 3.57 ft at 2:15AM Apr 17, 2024Observed: 3.56 ft at 2:30AM Apr 17, 2024Observed: 3.57 ft at 2:45AM Apr 17, 2024Observed: 3.56 ft at 3:00AM Apr 17, 2024Observed: 3.56 ft at 3:15AM Apr 17, 2024Observed: 3.56 ft at 3:30AM Apr 17, 2024Observed: 3.56 ft at 3:45AM Apr 17, 2024Observed: 3.55 ft at 4:00AM Apr 17, 2024Observed: 3.55 ft at 4:15AM Apr 17, 2024Observed: 3.56 ft at 4:30AM Apr 17, 2024Observed: 3.55 ft at 4:45AM Apr 17, 2024Observed: 3.55 ft at 5:00AM Apr 17, 2024Observed: 3.55 ft at 5:15AM Apr 17, 2024Observed: 3.55 ft at 5:30AM Apr 17, 2024Observed: 3.53 ft at 5:45AM Apr 17, 2024Observed: 3.53 ft at 6:00AM Apr 17, 2024Observed: 3.54 ft at 6:15AM Apr 17, 2024Observed: 3.53 ft at 6:30AM Apr 17, 2024Observed: 3.53 ft at 6:45AM Apr 17, 2024Observed: 3.53 ft at 7:00AM Apr 17, 2024Observed: 3.53 ft at 7:15AM Apr 17, 2024Observed: 3.53 ft at 7:30AM Apr 17, 2024Observed: 3.53 ft at 7:45AM Apr 17, 2024Observed: 3.52 ft at 8:00AM Apr 17, 2024Observed: 3.52 ft at 8:15AM Apr 17, 2024Observed: 3.52 ft at 8:30AM Apr 17, 2024Observed: 3.52 ft at 8:45AM Apr 17, 2024Observed: 3.52 ft at 9:00AM Apr 17, 2024Observed: 3.52 ft at 9:15AM Apr 17, 2024Observed: 3.52 ft at 9:30AM Apr 17, 2024Observed: 3.52 ft at 9:45AM Apr 17, 2024Observed: 3.51 ft at 10:00AM Apr 17, 2024Observed: 3.51 ft at 10:15AM Apr 17, 2024Observed: 3.51 ft at 10:30AM Apr 17, 2024Observed: 3.51 ft at 10:45AM Apr 17, 2024Observed: 3.51 ft at 11:00AM Apr 17, 2024Observed: 3.51 ft at 11:15AM Apr 17, 2024Observed: 3.49 ft at 11:30AM Apr 17, 2024Observed: 3.49 ft at 11:45AM Apr 17, 2024Observed: 3.49 ft at 12:00PM Apr 17, 2024Observed: 3.49 ft at 12:15PM Apr 17, 2024Observed: 3.49 ft at 12:30PM Apr 17, 2024Observed: 3.49 ft at 12:45PM Apr 17, 2024Observed: 3.49 ft at 1:00PM Apr 17, 2024Observed: 3.49 ft at 1:15PM Apr 17, 2024Observed: 3.49 ft at 1:30PM Apr 17, 2024Observed: 3.48 ft at 1:45PM Apr 17, 2024Observed: 3.49 ft at 2:00PM Apr 17, 2024Observed: 3.48 ft at 2:15PM Apr 17, 2024Observed: 3.48 ft at 2:30PM Apr 17, 2024Observed: 3.48 ft at 2:45PM Apr 17, 2024Observed: 3.48 ft at 3:00PM Apr 17, 2024Observed: 3.48 ft at 3:15PM Apr 17, 2024Observed: 3.48 ft at 3:30PM Apr 17, 2024Observed: 3.47 ft at 3:45PM Apr 17, 2024Observed: 3.48 ft at 4:00PM Apr 17, 2024Observed: 3.47 ft at 4:15PM Apr 17, 2024Observed: 3.47 ft at 4:30PM Apr 17, 2024Observed: 3.47 ft at 4:45PM Apr 17, 2024Observed: 3.47 ft at 5:00PM Apr 17, 2024Observed: 3.47 ft at 5:15PM Apr 17, 2024Observed: 3.46 ft at 5:30PM Apr 17, 2024Observed: 3.47 ft at 5:45PM Apr 17, 2024Observed: 3.47 ft at 6:00PM Apr 17, 2024Observed: 3.46 ft at 6:15PM Apr 17, 2024Observed: 3.46 ft at 6:30PM Apr 17, 2024Observed: 3.46 ft at 6:45PM Apr 17, 2024Observed: 3.46 ft at 7:00PM Apr 17, 2024Observed: 3.45 ft at 7:15PM Apr 17, 2024Observed: 3.45 ft at 7:30PM Apr 17, 2024Observed: 3.45 ft at 7:45PM Apr 17, 2024Observed: 3.46 ft at 8:00PM Apr 17, 2024Observed: 3.45 ft at 8:15PM Apr 17, 2024Observed: 3.45 ft at 8:30PM Apr 17, 2024Observed: 3.45 ft at 8:45PM Apr 17, 2024Observed: 3.45 ft at 9:00PM Apr 17, 2024Observed: 3.45 ft at 9:15PM Apr 17, 2024Observed: 3.45 ft at 9:30PM Apr 17, 2024Observed: 3.45 ft at 9:45PM Apr 17, 2024Observed: 3.45 ft at 10:00PM Apr 17, 2024Observed: 3.44 ft at 10:15PM Apr 17, 2024Observed: 3.45 ft at 10:30PM Apr 17, 2024Observed: 3.45 ft at 10:45PM Apr 17, 2024Observed: 3.44 ft at 11:00PM Apr 17, 2024Observed: 3.45 ft at 11:15PM Apr 17, 2024Observed: 3.45 ft at 11:30PM Apr 17, 2024Observed: 3.44 ft at 11:45PM Apr 17, 2024Observed: 3.44 ft at 12:00AM Apr 18, 2024Observed: 3.44 ft at 12:15AM Apr 18, 2024Observed: 3.45 ft at 12:30AM Apr 18, 2024Observed: 3.44 ft at 12:45AM Apr 18, 2024Observed: 3.43 ft at 1:00AM Apr 18, 2024Forecast: 3.5 ft 8:00AM Apr 18, 2024Forecast: 3.6 ft 2:00PM Apr 18, 2024Forecast: 3.6 ft 8:00PM Apr 18, 2024Highest Forecast: 3.7 ft 2:00AM Apr 19, 2024Forecast: 3.6 ft 8:00AM Apr 19, 2024Forecast: 3.6 ft 2:00PM Apr 19, 2024Forecast: 3.5 ft 8:00PM Apr 19, 2024Forecast: 3.5 ft 2:00AM Apr 20, 2024Forecast: 3.4 ft 8:00AM Apr 20, 2024USGS--Water Resources of the United StatesBONN4(plotting HGIRG) Graph Created (2:18AM Apr 18, 2024)ObservedForecast (issued 10:23AM Apr 17)Latest observed value: 3.43 ft at 1:00 AM EDT 18-Apr-2024. Flood Stage is 5 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 Rockaway River at Boonton below reservoir are issued routinely year-round.
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Upstream Gauge - at Boonton Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 8
Moderate Flood Stage: 7
Flood Stage: 5
Action Stage: 4.5
Low Stage (in feet): 0

Historic Crests
(1) 9.73 ft on 08/29/2011
(2) 8.30 ft on 01/25/1979
(3) 8.20 ft on 05/29/1968
(4) 8.17 ft on 04/06/1984
(5) 8.12 ft on 03/14/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.82 ft on 01/10/2024
(2) 6.03 ft on 12/29/2023
(3) 7.84 ft on 12/19/2023
(4) 5.86 ft on 06/27/2023
(5) 6.82 ft on 04/08/2022
Show More Recent Crests

(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
8 Due to high water on the Rockaway River, water backs up through storm drains and flood portions of Lancaster Avenue, Normandy Drive, Buckingham Circle, Sheffield Place, Manchester Drive and Konner Avenue in Montville. High water on the Rockaway also backs up Hatfield Creek in Montville and causes additional flooding on Lancaster Avenue.
7.7 Change Bridge Road in Montville, north of Woodmont Road and south of Stiles Lane, floods. River Road in Montville floods near Condurso's Garden Center. Both roads are closed.
6 Flooding occurs on Vail Road in Montville. The Road heading into Parsippany is subject to closures.
About This Location Collapse

Latitude: 40.896944° N, Longitude: 74.394722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 195.68 ft 200.68 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) 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
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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