Around here
Around South River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
South River is a 10.5 mile river near Griggstown Canoe And Kayak Rental in New Jersey. Streamflow is measured at the USGS gauge Deep Run at Old Bridge NJ (site 01406050). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2001 to 2026
South River typically runs highest in March, at a median 23 cfs, and lowest in September, at 2.8 cfs. The highest flow on record for any single day is 2,120 cfs, in 2011.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 17 | 11 to 29 |
| February | 20 | 13 to 35 |
| March | 23 | 15 to 45 |
| April | 21 | 13 to 33 |
| May | 15 | 8.6 to 26 |
| June | 8.0 | 4.3 to 19 |
| July | 4.8 | 2.4 to 12 |
| August | 3.5 | 1.3 to 9.7 |
| September | 2.8 | 0.5 to 8.9 |
| October | 5.5 | 1.7 to 15 |
| November | 10 | 4.8 to 21 |
| December | 18 | 9.8 to 34 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 26 years of record. Statistics published by the US Geological Survey for Deep Run at Old Bridge NJ (site 01406050). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
One mapped launch sits in the mapped area of South River. Ramp data comes from the USGS national boat-ramp inventory.
- Sayreville MunicipalRaritan RiverPublic
Made to print
Put South River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show South River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
