New Jersey River Levels & Streamflow
As of Aug 3, 2026, New Jersey rivers are running at 163% of normal across 96 USGS gauges — the highest is 11,400 cfs on the Delaware River At Trenton Nj. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in New Jersey.
Streamflow levels across New Jersey are currently 163% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 11,400 cfs and a gauge stage of 9.89 ft.
Meanwhile, the Passaic River At Little Falls Nj is seeing a spike today — up -13% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into New Jersey's named rivers.
Active weather warnings for New Jersey
New Jersey is experiencing significant flooding threats on August 3rd. A Flash Flood Warning is in effect until 10:45 AM for northeastern counties including Essex, Hudson, and Union, with Newark, Jersey City, Elizabeth, Bayonne, Hoboken, and Secaucus at immediate risk. Heavy rainfall of 1-3 inches has already fallen, with an additional 1-2 inches possible through mid-morning. A broader Flood Watch extends through 8 PM for much of northeastern New Jersey, including Bergen, Passaic, and additional portions of Essex and Union counties, with thunderstorms potentially producing rainfall rates of 1-2 inches per hour. Minor stream flooding is expected in Bergen County communities including Hackensack, Paramus, Fort Lee, and Teaneck. Additionally, dangerous rip currents threaten Atlantic County and Cape May coastal areas through 8 PM. Residents should avoid flooded roadways and low-lying areas, monitor local weather updates, and exercise extreme caution near beaches.
State-wide streamflow overview
The New Jersey flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 9.89 ft
Biggest 24h spike
Now 1,390 cfs
Network coverage
USGS gauges feeding 0 named rivers in New Jersey.
New Jersey USGS streamgauges
Every USGS gauge Snoflo tracks in New Jersey. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Delaware River At Trenton Nj, Nj
12 hours ago · USGS 01463500 |
9,590 cfs | 9.57 ft | 76°F | 73°F | 7 ft | Middle Delaware-Musconetcong |
|
Delaware River At Belvidere Nj, Nj
12 hours ago · USGS 01446500 |
6,930 cfs | 5.34 ft | 49°F | 71°F | 232 ft | Middle Delaware-Musconetcong |
|
Delaware River At Montague Nj, Nj
11 hours ago · USGS 01438500 |
4,440 cfs | 6.36 ft | 74°F | 68°F | 374 ft | Middle Delaware-Mongaup-Brodhead |
|
Passaic River At Little Falls Nj, Nj
12 hours ago · USGS 01389500 |
1,210 cfs | 2.59 ft | · | 74°F | 131 ft | Hackensack-Passaic |
|
Passaic River At Pine Brook Nj, Nj
12 hours ago · USGS 01381900 |
794 cfs | 16.31 ft | · | 74°F | 167 ft | Hackensack-Passaic |
|
Pompton River At Pompton Plains Nj, Nj
12 hours ago · USGS 01388500 |
334 cfs | 8.56 ft | · | 72°F | 171 ft | Hackensack-Passaic |
|
Raritan River At Manville Nj, Nj
12 hours ago · USGS 01400500 |
290 cfs | 4.22 ft | 80°F | 72°F | 43 ft | Raritan |
|
West Branch Middle Brook Near Martinsville Nj, Nj
11 hours ago · USGS 01403150 |
270 cfs | 4.64 ft | · | 72°F | 249 ft | Raritan |
|
Paulins Kill At Blairstown Nj, Nj
12 hours ago · USGS 01443500 |
269 cfs | 2.16 ft | 82°F | 70°F | 399 ft | Middle Delaware-Musconetcong |
|
Saddle River At Lodi Nj, Nj
12 hours ago · USGS 01391500 |
236 cfs | 2.74 ft | · | 75°F | 26 ft | Hackensack-Passaic |
|
Ramapo River At Pompton Lakes Nj, Nj
12 hours ago · USGS 01388000 |
218 cfs | 7.64 ft | 76°F | 73°F | 197 ft | Hackensack-Passaic |
|
Whippany River At Morristown Nj, Nj
11 hours ago · USGS 01381500 |
181 cfs | 3.20 ft | · | 72°F | 265 ft | Hackensack-Passaic |
|
Raritan River Below Calco Dam At Bound Brook Nj, Nj
12 hours ago · USGS 01403060 |
175 cfs | 16.70 ft | · | 73°F | 18 ft | Raritan |
|
Musconetcong River Near Bloomsbury Nj, Nj
12 hours ago · USGS 01457000 |
172 cfs | 1.71 ft | · | 71°F | 275 ft | Middle Delaware-Musconetcong |
|
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
11 hours ago · USGS 01393450 |
172 cfs | 15.21 ft | · | 75°F | 21 ft | Sandy Hook-Staten Island |
|
South Branch Raritan River At Stanton Nj, Nj
12 hours ago · USGS 01397000 |
168 cfs | 2.80 ft | · | 72°F | 163 ft | Raritan |
|
Ramapo River Near Mahwah Nj, Nj
12 hours ago · USGS 01387500 |
151 cfs | 3.48 ft | · | 73°F | 259 ft | Hackensack-Passaic |
|
North Branch Raritan River Near Raritan Nj, Nj
12 hours ago · USGS 01400000 |
145 cfs | 2.84 ft | · | 72°F | 51 ft | Raritan |
|
Whippany River Near Pine Brook Nj, Nj
12 hours ago · USGS 01381800 |
134 cfs | 4.83 ft | 76°F | 73°F | 170 ft | Hackensack-Passaic |
|
Rockaway River Below Reservoir At Boonton Nj, Nj
12 hours ago · USGS 01381000 |
133 cfs | 2.62 ft | · | 72°F | 198 ft | Hackensack-Passaic |
|
Delaware And Raritan Canal At Port Mercer Nj, Nj
12 hours ago · USGS 01460440 |
132 cfs | 55.19 ft | 79°F | 72°F | 52 ft | Middle Delaware-Musconetcong |
|
Second River At Belleville Nj, Nj
12 hours ago · USGS 01392500 |
125 cfs | 2.26 ft | · | 75°F | 85 ft | Hackensack-Passaic |
|
Pequest River At Pequest Nj, Nj
12 hours ago · USGS 01445500 |
107 cfs | 1.76 ft | 71°F | 71°F | 468 ft | Middle Delaware-Musconetcong |
|
Pequannock River At Riverdale Nj, Nj
12 hours ago · USGS 01382800 |
106 cfs | 2.69 ft | · | 72°F | 202 ft | Hackensack-Passaic |
|
Millstone River At Blackwells Mills Nj, Nj
12 hours ago · USGS 01402000 |
104 cfs | 1.74 ft | 81°F | 72°F | 29 ft | Raritan |
|
Pascack Brook At Westwood Nj, Nj
11 hours ago · USGS 01377500 |
97 cfs | 2.09 ft | · | 75°F | 24 ft | Hackensack-Passaic |
|
Hackensack River At Rivervale Nj, Nj
12 hours ago · USGS 01377000 |
90 cfs | 1.98 ft | · | 75°F | 36 ft | Hackensack-Passaic |
|
Passaic River Near Chatham Nj, Nj
12 hours ago · USGS 01379500 |
90 cfs | 3.75 ft | · | 72°F | 199 ft | Hackensack-Passaic |
|
Passaic River Near Millington Nj, Nj
12 hours ago · USGS 01379000 |
73 cfs | 5.11 ft | · | 72°F | 232 ft | Hackensack-Passaic |
|
Toms River Near Toms River Nj, Nj
12 hours ago · USGS 01408500 |
66 cfs | 3.11 ft | · | 74°F | 20 ft | Mullica-Toms |
|
Spruce Run At Clinton Nj, Nj
11 hours ago · USGS 01396800 |
64 cfs | 1.81 ft | 78°F | 71°F | 196 ft | Raritan |
|
Maurice River At Norma Nj, Nj
12 hours ago · USGS 01411500 |
59 cfs | 2.47 ft | 74°F | 73°F | 49 ft | Cohansey-Maurice |
|
Yards Creek Near Blairstown Nj, Nj
12 hours ago · USGS 01443900 |
59 cfs | 2.84 ft | · | 70°F | 660 ft | Middle Delaware-Musconetcong |
|
Wanaque River At Awosting Nj, Nj
12 hours ago · USGS 01383500 |
58 cfs | 2.34 ft | · | 72°F | 603 ft | Hackensack-Passaic |
|
Flat Brook Near Flatbrookville Nj, Nj
12 hours ago · USGS 01440000 |
56 cfs | 2.21 ft | 70°F | 69°F | 358 ft | Middle Delaware-Mongaup-Brodhead |
|
South Branch Raritan River Near High Bridge Nj, Nj
12 hours ago · USGS 01396500 |
56 cfs | 5.98 ft | 66°F | 71°F | 424 ft | Raritan |
|
Saddle River At Ridgewood Nj, Nj
12 hours ago · USGS 01390500 |
47 cfs | 1.20 ft | · | 74°F | 76 ft | Hackensack-Passaic |
|
West Branch Wading River Near Jenkins Nj, Nj
12 hours ago · USGS 01409810 |
46 cfs | 10.39 ft | · | 73°F | 22 ft | Mullica-Toms |
|
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
12 hours ago · USGS 01455500 |
43 cfs | 1.90 ft | · | 70°F | 923 ft | Middle Delaware-Musconetcong |
|
North Branch Rancocas Creek At Pemberton Nj, Nj
12 hours ago · USGS 01467000 |
42 cfs | 1.50 ft | 77°F | 73°F | 33 ft | Lower Delaware |
|
Lamington (Black) River Near Pottersville Nj, Nj
12 hours ago · USGS 01399500 |
38 cfs | 1.82 ft | · | 71°F | 422 ft | Raritan |
|
Oswego River At Harrisville Nj, Nj
12 hours ago · USGS 01410000 |
36 cfs | 10.30 ft | · | 73°F | 6 ft | Mullica-Toms |
|
Pequest River At Huntsville Nj, Nj
12 hours ago · USGS 01445000 |
36 cfs | 2.76 ft | · | 71°F | 566 ft | Middle Delaware-Musconetcong |
|
Hohokus Brook At Ho-Ho-Kus Nj, Nj
12 hours ago · USGS 01391000 |
35 cfs | 1.54 ft | · | 74°F | 125 ft | Hackensack-Passaic |
|
Manasquan R Nr Allenwood Nj, Nj
12 hours ago · USGS 01408029 |
32 cfs | 7.64 ft | 72°F | 74°F | 51 ft | Mullica-Toms |
|
Beaver Brook Near Belvidere Nj, Nj
12 hours ago · USGS 01446000 |
32 cfs | 1.85 ft | · | 71°F | 358 ft | Middle Delaware-Musconetcong |
|
North Branch Raritan River Near Far Hills Nj, Nj
12 hours ago · USGS 01398500 |
31 cfs | 2.34 ft | · | 72°F | 208 ft | Raritan |
|
Hackensack River At New Milford Nj, Nj
12 hours ago · USGS 01378500 |
30 cfs | 1.64 ft | · | 75°F | 6 ft | Hackensack-Passaic |
|
Rahway River At Rahway Nj, Nj
12 hours ago · USGS 01395000 |
30 cfs | 1.60 ft | · | 75°F | 15 ft | Sandy Hook-Staten Island |
|
Wanaque R At Wanaque Nj, Nj
12 hours ago · USGS 01387000 |
29 cfs | 1.52 ft | · | 73°F | 221 ft | Hackensack-Passaic |
|
Whippany River Near Morristown Nj, Nj
12 hours ago · USGS 01381400 |
27 cfs | 3.01 ft | · | 71°F | 314 ft | Hackensack-Passaic |
|
Assunpink Creek At Trenton Nj, Nj
12 hours ago · USGS 01464000 |
27 cfs | 2.46 ft | · | 73°F | 25 ft | Middle Delaware-Musconetcong |
|
North Branch Metedeconk River Near Lakewood Nj, Nj
12 hours ago · USGS 01408120 |
27 cfs | 2.75 ft | · | 74°F | 19 ft | Mullica-Toms |
|
Pascack Brook At Park Ridge Nj, Nj
11 hours ago · USGS 01377370 |
27 cfs | 2.93 ft | · | 74°F | 118 ft | Hackensack-Passaic |
|
West Brook Near Wanaque Nj, Nj
12 hours ago · USGS 01386000 |
26 cfs | · | · | 73°F | 318 ft | Hackensack-Passaic |
|
Great Egg Harbor River At Folsom Nj, Nj
12 hours ago · USGS 01411000 |
26 cfs | 3.52 ft | · | 73°F | 109 ft | Great Egg Harbor |
|
Manasquan River At Squankum Nj, Nj
12 hours ago · USGS 01408000 |
26 cfs | 2.51 ft | 65°F | 74°F | 36 ft | Mullica-Toms |
|
Manalapan Brook At Spotswood Nj, Nj
12 hours ago · USGS 01405400 |
24 cfs | 9.93 ft | · | 73°F | 17 ft | Raritan |
|
Crosswicks Creek At Extonville Nj, Nj
12 hours ago · USGS 01464500 |
23 cfs | 2.32 ft | 77°F | 73°F | 30 ft | Crosswicks-Neshaminy |
|
Rahway River Near Springfield Nj, Nj
12 hours ago · USGS 01394500 |
22 cfs | 1.47 ft | · | 74°F | 67 ft | Sandy Hook-Staten Island |
|
Lawrence Bk At Westons Mills Nj, Nj
12 hours ago · USGS 01405030 |
22 cfs | 15.82 ft | · | 73°F | 2 ft | Raritan |
|
Bound Bk At Middlesex Nj, Nj
12 hours ago · USGS 01403900 |
22 cfs | 1.63 ft | · | 72°F | 28 ft | Raritan |
|
Ringwood Creek Near Wanaque Nj, Nj
12 hours ago · USGS 01384500 |
20 cfs | 10.56 ft | · | 72°F | 302 ft | Hackensack-Passaic |
|
Cohansey River At Seeley Nj, Nj
12 hours ago · USGS 01412800 |
20 cfs | 2.90 ft | 70°F | 74°F | 30 ft | Cohansey-Maurice |
|
Great Egg Harbor R Nr Blue Anchor Nj, Nj
12 hours ago · USGS 01410820 |
19 cfs | 2.14 ft | · | 73°F | 92 ft | Great Egg Harbor |
|
Pequannock R At Macopin Intake Dam Nj, Nj
11 hours ago · USGS 01382500 |
19 cfs | 2.35 ft | · | 71°F | 574 ft | Hackensack-Passaic |
|
Mullica River Near Batsto Nj, Nj
12 hours ago · USGS 01409400 |
17 cfs | · | · | 74°F | 13 ft | Mullica-Toms |
|
Greenwood Branch At New Lisbon Nj, Nj
12 hours ago · USGS 01466900 |
17 cfs | 1.77 ft | 74°F | 73°F | 38 ft | Lower Delaware |
|
Saddle River At Upper Saddle River Nj, Nj
12 hours ago · USGS 01390450 |
16 cfs | 2.14 ft | · | 73°F | 190 ft | Hackensack-Passaic |
|
Eb Paulins Kill Near Lafayette Nj, Nj
12 hours ago · USGS 01443280 |
15 cfs | 2.27 ft | · | 70°F | 567 ft | Middle Delaware-Musconetcong |
|
Westecunk Creek At Stafford Forge Nj, Nj
12 hours ago · USGS 01409280 |
15 cfs | 10.75 ft | 80°F | 73°F | 67 ft | Mullica-Toms |
|
Raccoon Creek Near Swedesboro Nj, Nj
13 hours ago · USGS 01477120 |
13 cfs | 8.57 ft | 75°F | 73°F | 11 ft | Lower Delaware |
|
Jumping Brook Near Neptune City Nj, Nj
12 hours ago · USGS 01407760 |
12 cfs | 1.78 ft | · | 74°F | 42 ft | Sandy Hook-Staten Island |
|
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
12 hours ago · USGS 01379780 |
12 cfs | 2.53 ft | · | 70°F | 697 ft | Hackensack-Passaic |
|
Great Egg Harbor R Nr Sicklerville Nj, Nj
12 hours ago · USGS 01410784 |
10 cfs | 4.04 ft | · | 73°F | 116 ft | Great Egg Harbor |
|
Green Pond Brook At Picatinny Arsenal Nj, Nj
12 hours ago · USGS 01379773 |
9 cfs | 1.61 ft | · | 70°F | 717 ft | Hackensack-Passaic |
|
Big Brook Near Marlboro Nj, Nj
12 hours ago · USGS 01407290 |
9 cfs | 9.67 ft | · | 73°F | 65 ft | Sandy Hook-Staten Island |
|
Stony Brook At Princeton Nj, Nj
12 hours ago · USGS 01401000 |
8 cfs | 1.47 ft | 68°F | 72°F | 61 ft | Raritan |
|
South Branch Rancocas Creek At Vincentown Nj, Nj
12 hours ago · USGS 01465850 |
8 cfs | · | 68°F | 73°F | 17 ft | Lower Delaware |
|
Neshanic River At Reaville Nj, Nj
12 hours ago · USGS 01398000 |
7 cfs | 2.52 ft | · | 72°F | 118 ft | Raritan |
|
Cooper River At Haddonfield Nj, Nj
12 hours ago · USGS 01467150 |
7 cfs | 1.35 ft | 81°F | 73°F | 10 ft | Lower Delaware |
|
Canoe Brook Near Summit Nj, Nj
12 hours ago · USGS 01379530 |
6 cfs | 11.48 ft | 79°F | 74°F | 172 ft | Hackensack-Passaic |
|
Sb Rockaway Creek At Whitehouse Station Nj, Nj
12 hours ago · USGS 01399670 |
6 cfs | 1.84 ft | · | 72°F | 169 ft | Raritan |
|
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
12 hours ago · USGS 01467081 |
5 cfs | 2.00 ft | 76°F | 73°F | 18 ft | Lower Delaware |
|
East Branch Bass River Near New Gretna Nj, Nj
12 hours ago · USGS 01410150 |
5 cfs | 3.44 ft | · | 73°F | 6 ft | Mullica-Toms |
|
Shark River Near Neptune City Nj, Nj
12 hours ago · USGS 01407705 |
5 cfs | 1.41 ft | · | 74°F | 37 ft | Sandy Hook-Staten Island |
|
Mulhockaway Creek At Van Syckel Nj, Nj
12 hours ago · USGS 01396660 |
5 cfs | · | · | 71°F | 287 ft | Raritan |
|
Salem River At Woodstown Nj, Nj
12 hours ago · USGS 01482500 |
4 cfs | 11.08 ft | · | 73°F | 28 ft | Cohansey-Maurice |
|
Assunpink Creek Near Clarksville Nj, Nj
12 hours ago · USGS 01463620 |
4 cfs | 3.49 ft | · | 72°F | 51 ft | Middle Delaware-Musconetcong |
|
Green Brook At Seeley Mills Nj, Nj
12 hours ago · USGS 01403400 |
3 cfs | 2.02 ft | · | 74°F | 218 ft | Raritan |
|
Deep Run At Old Bridge Nj, Nj
12 hours ago · USGS 01406050 |
3 cfs | 6.70 ft | · | 73°F | 5 ft | Raritan |
|
Tuckahoe River At Head Of River Nj, Nj
12 hours ago · USGS 01411300 |
3 cfs | 3.85 ft | · | 74°F | 8 ft | Great Egg Harbor |
|
Pike Run At Belle Mead Nj, Nj
12 hours ago · USGS 01401650 |
1 cfs | 2.95 ft | · | 72°F | 62 ft | Raritan |
|
Stony Brook At Watchung Nj, Nj
12 hours ago · USGS 01403540 |
1 cfs | 9.48 ft | · | 73°F | 181 ft | Raritan |
|
Mcdonalds Branch In Lebanon State Forest Nj, Nj
12 hours ago · USGS 01466500 |
1 cfs | · | 73°F | 73°F | 115 ft | Lower Delaware |
|
Swimming River Near Red Bank Nj, Nj
12 hours ago · USGS 01407500 |
0 cfs | 2.14 ft | · | 74°F | 33 ft | Sandy Hook-Staten Island |
See every New Jersey gauge ranked against normal.
- Percentile rank & % of median for all 96 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About New Jersey streamflow
What are river levels like in New Jersey right now?
As of August 3, 2026, New Jersey rivers are running at 163% of normal across 96 USGS streamgauges, and the Delaware River At Trenton Nj is reporting the highest discharge at 11,400 cfs. The full sortable gauge table is below.
Which New Jersey river is running highest right now?
As of August 3, 2026, the highest discharge in New Jersey is 11,400 cfs on the Delaware River At Trenton Nj. See the sortable gauge table for the full statewide ranking.
Are New Jersey rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means New Jersey rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the New Jersey streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the New Jersey data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a New Jersey gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.