Guadalupe River level at Gruene
Texas · Tubing & floating
Measured at USGS 08169500 — Guadalupe Rv at New Braunfels, TX · NWS forecast point GBCT2
Reading taken · as of 1 hour ago
Right around its normal summer float level
At 9.56 ft, this gauge is running 99% of normal for mid-September — close to the 9.6 ft median USGS has recorded for this date across 22 years of record (2001–2026).
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Flood stages at Gruene
National Weather Service categories for gauge GBCT2, WFO EWX. Impact wording is the NWS's own, verbatim.
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Major flood 20.0 ft
- 20.0 ft Major flooding reaches lowest homes in New Braunfels and downstream near Lakes Dunlap and McQueeney. River Road above New Braunfels is severely flooded and impassable in most areas. Sleeping campers, autos and gear on the banks can wash downstream. This is a life threatening situation.
- 24.0 ft Major flooding is extremely dangerous upstream along River Road to below New Braunfels. Homes and businesses flood in New Braunfels. RV parks and homes near the river on Lake Dunlap are threatened. Roads near the river below Canyon Dam to Lake Dunlap are very dangerous to motorists.
- 28.0 ft Disastrous flooding reaches many lowest homes in New Braunfels downstream to Seguin. River recreational areas are severely flooded and life threatening below Canyon Dam to Seguin. All roads near the river will become life threatening as the flood wave moves downstream.
- 32.0 ft The Guadalupe River in New Braunfels is life threatening with widespread residential flooding. There is very dangerous flooding of camps and facilities below Canyon Dam to below Seguin. River Road is under tens of feet of water in most areas, and flows are life threatening to campers along the river.
- 35.0 ft Widespread disastrous flooding washes homes downstream in New Braunfels and Seguin. Lowest homes along Lakes Dunlap and McQueeney will flood severely. Flooding is life threatening along river road above New Braunfels. Many secondary and primary roads are impassable and people are cut off.
- 38.0 ft Life threatening, extremely dangerous flooding below Canyon Dam to below Gonzales causes widespread residential and commercial flooding with the potential to drown people. Sleeping campers, autos and any gear along river road below Canyon Dam to above New Braunfels can be washed downstream.
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Moderate flood 14.0 ft
- 14.0 ft Moderate lowland flooding closes several roads, streets and businesses in New Braunfels. Upstream River Road is extremely dangerous.
- 15.0 ft Moderate flooding threatens lowest homes in the Guadalupe river flood plain. Secondary roads, streets, and low bridges are flooded and dangerous. River Road above New Braunfels is widely flooded and very dangerous to motorists and campers.
- 17.0 ft River road is closed in several places between New Braunfels and Canyon Dam. Fast moving flow washes autos and gear on the banks downstream. Lowest homes in New Braunfels are threatened. The Common Street bridge in New Braunfels floods and many roads, streets, and bridges near the river are very dangerous to motorists. Lowest homes below I-35 near Lakes Dunlap and McQueeney are threatened.
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Minor flood 13.0 ft
- 13.0 ft Minor lowland flooding extends into the flood plain closing lowest roads and crossings near the river.
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Action 13.0 ft
- 13.0 ft Minor lowland flooding extends into the flood plain closing lowest roads and crossings near the river.
- Right now 9.56 ft
NWS forecast: 9.60 ft by .
Flow history at Gruene
Daily values from USGS 08169500, updated every 15 to 60 minutes; NWS forecast for GBCT2 reissued through the day. Provisional.
Highest crests on record at Gruene
12 on record
| Stage | Flow | Date |
|---|---|---|
| 39.50 ft | — | Dec 13, 1913 |
| 39.50 ft | 56,600 CFS | Aug 8, 1869 |
| 38.54 ft | 222,000 CFS | Oct 17, 1998 |
| 36.55 ft | 60,800 CFS | May 11, 1972 |
| 35.00 ft | — | Jun 15, 1935 |
| 33.50 ft | — | Jul 3, 1932 |
| 32.00 ft | — | Sep 10, 1952 |
| 29.65 ft | — | Jun 9, 2010 |
| 28.60 ft | 56,600 CFS | Sep 10, 1921 |
| 27.20 ft | 51,300 CFS | Sep 17, 1915 |
Crests published by the National Weather Service.
About Guadalupe River at Gruene
In Texas — the reading paddlers, anglers and outfitters here check before committing to a shuttle. Gruene outfitter corridor below Sattler.
Guadalupe River at Gruene — common questions
3 questions
Does rain upstream change Guadalupe River at Gruene quickly?
Yes. It is free-flowing, so rain upstream moves it directly. Several feet in a few hours is normal after a heavy storm.
Is Guadalupe River at Gruene high or low for this time of year?
The USGS median gage height for mid-September here is 9.6 ft, from 22 years of record (2001–2026). Today is 99% 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 08169500 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for GBCT2 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.