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Passaic River at Little Falls, NJ (LTFN4)


Data Type




Inundation Levels
NAVD88 Stage

139.1*20.1*
137.8*18.8*
136.9*17.9*
Record Crest: 17.5 ft
135.616.6
134.615.6
133.714.7
132.413.4
131.612.6
130.611.6
129.510.5
128.69.6

Major Flooding Begins

127.68.6

Moderate Flooding Begins

126.57.5

Minor Flooding Begins

125.46.4
* = Extended rating
Weather Forecast Office Philadelphia/Mount Holly, NJ Middle Atlantic River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping
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Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

Current Stage:
3.2 ft at 04/26/2017 22:30:00 UTC
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
What is UTC time? Map Help

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.

Gauge Information Collapse

Map Overlays

Flood Categories (in feet)
Major Flood Stage: 9
Moderate Flood Stage: 8
Flood Stage: 7
Action Stage: 6.5
Low Stage (in feet): 0

Historic Crests
(1) 17.50 ft on 10/10/1903
(2) 14.19 ft on 08/30/2011
(3) 12.91 ft on 04/07/1984
(4) 11.88 ft on 04/18/2007
(5) 11.87 ft on 03/16/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.05 ft on 09/09/2011
(2) 14.19 ft on 08/30/2011
(3) 9.02 ft on 04/19/2011
(4) 11.81 ft on 03/13/2011
(5) 8.98 ft on 03/09/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.27 ft on 02/21/2002

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Site-specific information:

Flood boundaries reflect flooding and backwater from only the Passaic River. Additional areas may be flooded as a result of tributary contributions. Therefore, flooding may occur at elevations lower than depicted in the West Paterson Borough neighborhood near McBride Avenue/Memorial Drive due to the close vicinity of the Peckman River and Dowling Brook near Vetrone Drive.

These maps represent unobstructed flow conditions and may be unrepresentative when ice jams and/or debris are in place.

Extended rating:
The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.

Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
12 Wagaraw Road in Hawthorne, between Lafayette Avenue and Lincoln Avenue, is closed. Passaic Avenue, Schoon Avenue and Vincent Street are also closed. Homes and businesses flood.
11.5 Tyler Street, Shady Street, Arch Street, Lowe Street, Wood Street, and Bleeker Street in Paterson are closed due to flooding.
11 The West Broadway Bridge in Paterson is subject to closures.
10.5 Businesses along Route 46 in Wayne begin to flood. Route 23 floods. The Willowbrook Mall experiences flooding. Haledon Avenue bridge in Paterson is subject to closures. Also in Paterson, portions of Straight Street, Union Avenue, West Broadway, Ryle Avenue, East Main Street, North Main Street, and Haledon Avenue are also subject to closures due to flooding.
10 Wagaraw Road in Hawthorne is closed. Homes and businesses in Hawthorne, directly along the river, begin to flood. Water begins to flow over the Temple Street bridge in Paterson.
9.5 Route 46 in Wayne is subject to closures. Riverside Drive in Wayne floods. Flooding in Little Falls worsens as homes on Willaim Street and Zeliff Avenue take on water. Arch Street and Temple Street bridges in Paterson are subject to closures. Also in Paterson, portions of Watson Street, Hillman Street, Bergen Street, east Holsman Street, North 1st Street, Fifth Avenue, Sixth Avenue, and Goodwin Street are also subject to closures due to flooding.
9 Widespread flooding occurs throughout Lincoln Park and Wayne with many evacuations. In Paterson, portions of River Street, Presidential Boulevard, Bridge Street, Tyler Street, Totowa Avenue and Mclean Boulevard are flooded.
8.5 Widespread flooding occurs in Fairfield.
8 Flooding occurs in the "Old" Wayne area of Wayne. The recycling center and Wagaraw Road ball field complex in Hawthorne begins to experience flooding.
7 Minor flooding begins in Lincoln Park, Wayne and Little Falls.
6.5 Low lying areas in the vicinity of Two Bridges in Wayne are flooded. The lower end of Bergen Street in Paterson, closest to the river, begins to flood.
6 Portions of Hoffman Grove in Wayne sustain some nuisance flooding.
5.5 The lower end of East-Holsman Street in Paterson, closest to the river, begins to flood.
Other Data Sources Collapse
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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Page last modified: 21-Dec-2016 5:25 PM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.