Chattooga River level at Long Creek
South Carolina · Paddling & whitewater
Measured at USGS 02177000 — CHATTOOGA RIVER NEAR CLAYTON, GA · NWS forecast point CYNG1
Reading taken · as of 1 hour ago
Too low for most boats — rocky and technical
At 156 CFS, this gauge is running 52% of normal for mid-September — below the 299 CFS median USGS has recorded for this date across 86 years of record (1940–2026).
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Flood stages at Long Creek
National Weather Service categories for gauge CYNG1, WFO GSP. Impact wording is the NWS's own, verbatim.
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Major flood 29.0 ft
- 42.0 ft ROAD OVER THE RIVER WILL BEGIN TO FLOOD...BUT IS WELL ABOVE RECORD CREST OF 13.8 FEET.
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Moderate flood 20.0 ft
-
Minor flood 15.0 ft
- 15.0 ft ROADS DOWNSTREAM MAY START TO FLOOD
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Action 14.0 ft
- Right now 1.09 ft
Flow history at Long Creek
Daily values from USGS 02177000, updated every 15 to 60 minutes; NWS forecast for CYNG1 reissued through the day. Provisional.
Highest crests on record at Long Creek
12 on record
| Stage | Flow | Date |
|---|---|---|
| 13.80 ft | 29,000 CFS | Aug 30, 1940 |
| 12.00 ft | — | May 28, 1973 |
| 11.37 ft | 34,300 CFS | Sep 27, 2024 |
| 11.21 ft | 33,300 CFS | Sep 17, 2004 |
| 11.12 ft | — | Oct 4, 1964 |
| 10.36 ft | — | May 15, 1976 |
| 10.12 ft | — | Mar 4, 1979 |
| 9.21 ft | 14,950 CFS | Sep 8, 2004 |
| 9.17 ft | — | Feb 13, 1966 |
| 9.09 ft | 12,600 CFS | Jan 8, 1998 |
Crests published by the National Weather Service.
About Chattooga River at Long Creek
In South Carolina — the reading paddlers, anglers and outfitters here check before committing to a shuttle. Section IV Five Falls; most level-sensitive commercial run in the region.
Chattooga River at Long Creek — common questions
3 questions
How fast can Chattooga River at Long Creek come up?
Fast. It is free-flowing, so rain upstream moves it directly. Several feet in a few hours is normal after a heavy storm.
Is Chattooga River at Long Creek high or low for this time of year?
The USGS median flow for mid-September here is 299 CFS, from 86 years of record (1940–2026). Today is 52% of it. The comparison is what makes the raw number mean anything: the same reading is a drought on one river and a flood on another.
How often does this reading update?
USGS transmits from gauge 02177000 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for CYNG1 a few times a day — more often when the river is rising. This page refreshes from both when you open it. The timestamp is in the gauge's local time.