Gulf Coast Gauges

Guadalupe River at SH 35 near Tivoli water level

USGS gauge 08188810 · Calhoun County · Victoria and Matagorda Bay · NWS gauge TVLT2

11.11 ft

gage height, Oct 23, 2026 at 1:45 PM CDT · 65 minutes ago

Highest since 2014 (USGS)
17.35 ft (August 26, 2017)
Usual range
10.79 to 12.16 ft

USGS marks recent readings as provisional: they can be revised after review.

No National Weather Service alert covering Calhoun County was active when this page was generated (Oct 23, 2026 at 2:50 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

10.2 11.2 12.2 Oct 17 Oct 18 Oct 19 Oct 20 Oct 21 Oct 22 Oct 23

Hourly averages of USGS readings. The shaded band is this gauge's usual range: the middle 80% of its readings since September 11, 2026.

How to read this gauge

Gage height is the height of the water surface above this gauge's own zero point, which sits at -9.39 ft NAVD88. It is not a water depth and not an elevation: add -9.39 ft to get the water surface elevation.

Daily highs and lows since September 11, 2026

10.1 11.3 12.5 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 2014

In 12 complete water years of comparable USGS records (since 2014), the highest peak was 17.35 ft on August 26, 2017. So far in water year 2027 (since October 1) the highest reading is 12.49 ft on October 11, 2026.

12 14 15 16 18 2015 2020 2025 Water year 2014: 14.25 ft on June 2, 2014 Water year 2015: 16.48 ft on June 1, 2015 Water year 2016: 15.39 ft on June 9, 2016 Water year 2017: 17.35 ft on August 26, 2017 Water year 2018: 14.94 ft on September 15, 2018 Water year 2019: 14.75 ft on October 13, 2018 Water year 2020: 14.37 ft on May 31, 2020 Water year 2022: 15.89 ft on October 21, 2021 Water year 2023: 15.29 ft on May 19, 2023 Water year 2024: 14.45 ft on January 30, 2024 Water year 2025: 14.42 ft on June 16, 2025 Water year 2026: 14.49 ft on July 23, 2026 Water year 2027 so far: 12.49 ft on October 11, 2026 2017 2015 2022

Each dot is the highest gage height of a water year (October to September), from the USGS annual peak record, with recent years USGS has not published yet taken from its 15-minute readings and this site's own; hover a dot for its date. Dashed lines are NWS flood stages.

NWS historic crests

DateCrestAbove minor flood stage
June 1, 201516.48 ft—
October 21, 202115.89 ft—
June 10, 201615.44 ft—
June 8, 201615.32 ft—
August 29, 201614.88 ft—
August 29, 201614.80 ft—
April 3, 201814.58 ft—
December 12, 201614.57 ft—

The highest crests the National Weather Service lists for this gauge, as published. They can differ from the USGS annual peaks above: USGS records the year's highest gage height, which is not always the crest the NWS lists for the same flood.

In past storms

StormPeakPeak timeRiseCompared with its record
October 1–2, 202612.06 ftOct 2, 2026 at 6:30 AM CDT0.2 fthighest since water year 2026 (14.49 ft on July 23, 2026)

Download the readings

guadalupe-river-at-sh-35-near-tivoli.csv (CSV): every reading stored for this gauge since September 11, 2026, 3,915 rows, with time in UTC and Central, gage height in feet, and the USGS approval status.

Source. Gage height from the U.S. Geological Survey. This site is not affiliated with either agency.