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Delaware River at Matamoras/Port Jervis, PA (MTMP1)


Data Type




Inundation Levels
NAVD88 Stage

442.5* 27.7*
441.9* 27.1*

Major Flooding Begins

441.3* 26.5*
440.7* 25.9*
Record Crest: 25.5 ft
440.1 25.3
439.5 24.7

Moderate Flooding Begins

438.7 23.9
438.1 23.3
437.5 22.7
436.8 22.0
436.0 21.2
434.9 20.1
434.3 19.5
433.7 18.9
433.1 18.3

Minor Flooding Begins

432.4 17.6
431.8 17.0
431.2 16.4

Near Flooding Begins

430.6 15.8
429.9 15.1
428.0 13.2
427.5 12.7
* = Extended rating
Weather Forecast Office Binghamton, NY Middle Atlantic River Forecast Center

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Current Stage:
3.2 ft at 12/22/2014 12:01:00 UTC
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Inundation Legend Inundation Legend
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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.

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Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 24
Flood Stage: 18
Action Stage: 16
Low Stage (in feet): 0

Historic Crests
(1) 25.50 ft on 03/08/1904
(2) 23.91 ft on 08/19/1955
(3) 23.10 ft on 10/10/1903
(4) 21.43 ft on 06/28/2006
(5) 20.53 ft on 04/03/2005
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(P): Preliminary values subject to further review.

Recent Crests
(1) 10.64 ft on 12/12/2008
(2) 12.20 ft on 03/09/2008
(3) 11.16 ft on 04/16/2007
(4) 21.43 ft on 06/28/2006
(5) 20.53 ft on 04/03/2005
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.60 ft on 09/23/1908
(2) 0.80 ft on 09/03/1906
(3) 0.93 ft on 10/13/1914
(4) 1.00 ft on 08/29/1910
(5) 1.00 ft on 08/03/1935
Show More Low Water Records

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

Extended rating:
Rating Curve Extension - 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
24 Significant damage from widespread overtopping of flood walls on the New York and Pennsylvania sides of the river.
22 Low points along flood walls and the river banks are reached in Matamoras which threatens a considerable amount of inundation in town.
19.5 Inundation in Matamoras reaches area around Price Chopper along Pennsylvania Avenue.
19 Houses along Rose Lane in Matamoras are impacted by flood waters.
18 At flood stage, the Delaware River overflows into the railyard on the New York side. Water begins to back up into the south west side of Matamoras near 10th Street and Avenue S.
16 Delaware Drive upstream of Matamoras begins to flood. Property of Milford Senior Care facility is threatened.
15 Access Road to Mashipacong Island begins to take on water.
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Page last modified: 19-Nov-2014 11:42 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.