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Neshanic River at Reaville

Highest listed crest 19.47 ftFlood stage 6.5 ft43 crests since 1945

The Neshanic River at Reaville crested above flood stage 43 times among the 43 crests the National Weather Service lists from 1945 to 2026. The highest, 19.47 ft on September 2, 2021, was minor flooding, 12.97 feet above flood stage.

The gauge

Highest listed crest
19.47 ft
September 2, 2021; 7,014 cubic feet per second
Flood stage
6.5 ft
No major stage set
Crests at major
0
43 above flood stage
Most recent flood crest
October 12, 2026
7.63 ft, minor flooding
Location
Hunterdon County
Near Princeton (11.6 mi), Somerville (13.3 mi), Manville (13.4 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Neshanic River at Reaville
Action stage5.50—The level at which the NWS or its partners begin to take action
Flood stage (minor)6.543Oct 12, 2026Minimal or no property damage, but possibly some public threat

Every listed crest

43 crests from 1945 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Neshanic River at Reaville, 1945 to 2026 5101520ft Flood stage 6.5 ft Jul 18, 1945: 12.33 ft, minor floodingJan 28, 1971: 13.84 ft, minor flooding; 15,900 cubic feet per secondMay 11, 1981: 9.78 ft, minor flooding; 4,290 cubic feet per secondJan 28, 1994: 12.21 ft, minor floodingOct 19, 1996: 12.63 ft, minor floodingSep 16, 1999: 15.33 ft, minor flooding; 23,100 cubic feet per secondMay 14, 2002: 7.06 ft, minor flooding; 1,540 cubic feet per secondNov 28, 2004: 9.34 ft, minor flooding; 3,030 cubic feet per secondApr 4, 2005: 9.38 ft, minor flooding; 3,070 cubic feet per secondAug 28, 2011: 14.66 ft, minor floodingMar 30, 2014: 7.71 ft, minor flooding; 1,726 cubic feet per secondMay 1, 2014: 11.46 ft, minor flooding; 4,610 cubic feet per secondMay 27, 2018: 6.96 ft, minor flooding; 1,327 cubic feet per secondAug 4, 2018: 6.76 ft, minor flooding; 1,226 cubic feet per secondAug 11, 2018: 6.63 ft, minor flooding; 1,163 cubic feet per secondSep 13, 2018: 7.12 ft, minor flooding; 1,411 cubic feet per secondSep 28, 2018: 9.09 ft, minor flooding; 2,645 cubic feet per secondOct 12, 2018: 7.91 ft, minor flooding; 1,859 cubic feet per secondNov 3, 2018: 7.45 ft, minor flooding; 1,590 cubic feet per secondNov 25, 2018: 10.20 ft, minor flooding; 3,506 cubic feet per secondJan 1, 2019: 6.85 ft, minor flooding; 1,271 cubic feet per secondJul 12, 2019: 6.70 ft, minor flooding; 1,197 cubic feet per secondJan 25, 2020: 6.88 ft, minor flooding; 1,286 cubic feet per secondAug 4, 2020: 9.31 ft, minor flooding; 2,806 cubic feet per secondDec 1, 2020: 7.62 ft, minor flooding; 1,687 cubic feet per secondDec 25, 2020: 9.28 ft, minor flooding; 2,784 cubic feet per secondMar 25, 2021: 7.24 ft, minor flooding; 1,475 cubic feet per secondJul 18, 2021: 13.57 ft, minor flooding; 6,841 cubic feet per secondAug 22, 2021: 11.81 ft, minor flooding; 4,965 cubic feet per secondSep 2, 2021: 19.47 ft, minor flooding; 7,014 cubic feet per secondApr 8, 2022: 9.08 ft, minor flooding; 2,638 cubic feet per secondApr 19, 2022: 7.72 ft, minor flooding; 1,745 cubic feet per secondJul 10, 2023: 8.26 ft, minor flooding; 2,078 cubic feet per secondSep 29, 2023: 8.92 ft, minor flooding; 2,523 cubic feet per secondNov 27, 2023: 7.75 ft, minor flooding; 1,763 cubic feet per secondDec 11, 2023: 7.72 ft, minor flooding; 1,745 cubic feet per secondDec 18, 2023: 11.35 ft, minor flooding; 4,523 cubic feet per secondDec 28, 2023: 9.95 ft, minor flooding; 3,302 cubic feet per secondJan 10, 2024: 11.85 ft, minor flooding; 5,004 cubic feet per secondMay 31, 2025: 8.66 ft, minor flooding; 2,340 cubic feet per secondMar 6, 2026: 7.49 ft, minor flooding; 1,612 cubic feet per secondSep 27, 2026: 6.82 ft, minor flooding; 1,256 cubic feet per secondOct 12, 2026: 7.63 ft, minor flooding; 1,693 cubic feet per second Highest, 19.47 ft, Sep 2, 2021 1960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Neshanic River at Reaville 1940s: 1 1950s: 0 1960s: 0 1970s: 1 1980s: 1 1990s: 3 2000s: 3 2010s: 13 2020s: 21 21 1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Neshanic River at Reaville
1Sep 2, 202119.47+12.97Minor7,014
2Sep 16, 199915.33+8.83Minor23,100
3Aug 28, 201114.66+8.16Minor—
4Jan 28, 197113.84+7.34Minor15,900
5Jul 18, 202113.57+7.07Minor6,841
6Oct 19, 199612.63+6.13Minor—
7Jul 18, 194512.33+5.83Minor—
8Jan 28, 199412.21+5.71Minor—
9Jan 10, 202411.85+5.35Minor5,004
10Aug 22, 202111.81+5.31Minor4,965
11May 1, 201411.46+4.96Minor4,610
12Dec 18, 202311.35+4.85Minor4,523
13Nov 25, 201810.20+3.70Minor3,506
14Dec 28, 20239.95+3.45Minor3,302
15May 11, 19819.78+3.28Minor4,290
16Apr 4, 20059.38+2.88Minor3,070
17Nov 28, 20049.34+2.84Minor3,030
18Aug 4, 20209.31+2.81Minor2,806
19Dec 25, 20209.28+2.78Minor2,784
20Sep 28, 20189.09+2.59Minor2,645
21Apr 8, 20229.08+2.58Minor2,638
22Sep 29, 20238.92+2.42Minor2,523
23May 31, 20258.66+2.16Minor2,340
24Jul 10, 20238.26+1.76Minor2,078
25Oct 12, 20187.91+1.41Minor1,859
26Nov 27, 20237.75+1.25Minor1,763
27Apr 19, 20227.72+1.22Minor1,745
28Dec 11, 20237.72+1.22Minor1,745
29Mar 30, 20147.71+1.21Minor1,726
30Oct 12, 20267.63+1.13Minor1,693
31Dec 1, 20207.62+1.12Minor1,687
32Mar 6, 20267.49+0.99Minor1,612
33Nov 3, 20187.45+0.95Minor1,590
34Mar 25, 20217.24+0.74Minor1,475
35Sep 13, 20187.12+0.62Minor1,411
36May 14, 20027.06+0.56Minor1,540
37May 27, 20186.96+0.46Minor1,327
38Jan 25, 20206.88+0.38Minor1,286
39Jan 1, 20196.85+0.35Minor1,271
40Sep 27, 20266.82+0.32Minor1,256
41Aug 4, 20186.76+0.26Minor1,226
42Jul 12, 20196.70+0.20Minor1,197
43Aug 11, 20186.63+0.13Minor1,163

Other gauges in Hunterdon County

Flood gauges in Hunterdon County
Frenchtown16.027.79 ft, Aug 20, 19557
Clinton5.57.41 ft, Sep 20, 19890
High Bridge10.014.26 ft, Jan 28, 19941
Stanton8.015.22 ft, Aug 19, 195513
Clinton4.05.35 ft, Sep 2, 20210
Glen Gardner7.09.27 ft, Sep 16, 19990

Hunterdon County: every hazard · River floods across the country · New Jersey

NOAA National Water Prediction Service, gauge REAN4, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.