Williamson Creek at Manchaca Road at Austin

Highest listed crest 16.10 ftFlood stage 13.0 ft2 crests since 2015

The Williamson Creek at Manchaca Road at Austin crested above flood stage 2 times among the 2 crests the National Weather Service lists from 2015 to 2019. The highest, 16.10 ft on October 30, 2015, was moderate flooding, 3.10 feet above flood stage. 1 other gauge on the Williamson Creek crested above flood stage within a week of it.

The gauge

Highest listed crest: 16.10 ft; October 30, 2015; 11,293 cubic feet per second
Flood stage: 13.0 ft; Major flooding from 18.0 ft
Crests at major: 0; 2 above flood stage
Most recent flood crest: May 4, 2019; 14.94 ft, moderate flooding
Location: Travis County; Near Austin (5.8 mi), Buda (10.7 mi), Lakeway (14.8 mi)
Identifiers: NWS AAIT2; USGS 08158930

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Williamson Creek at Manchaca Road at Austin

Flood stage (minor)	13.0	0	—	Minimal or no property damage, but possibly some public threat
Moderate flood stage	14.0	2	May 4, 2019	Some inundation of structures and roads near the stream
Major flood stage	18.0	0	—	Extensive inundation of structures and roads

Every listed crest

2 crests from 2015 to 2019. Filled: at or above flood stage. Hover a crest for its date and stage.

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Williamson Creek at Manchaca Road at Austin

1	Oct 30, 2015	16.10	+3.10	Moderate	11,293
2	May 4, 2019	14.94	+1.94	Moderate	8,402

The worst floods along the Williamson Creek

For this gauge's highest crests, the other gauges on the Williamson Creek that crested above flood stage within a week.

October 30, 2015: 16.10 ft here, moderate flooding

Oak HillTX · Oct 30, 2015 · 8.78 ft · Moderate

May 4, 2019: 14.94 ft here, moderate flooding

Oak HillTX · May 4, 2019 · 11.01 ft · Major

Gauges on the Williamson Creek

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Williamson Creek

Oak Hill	TX	6.0	12.01 ft, Oct 13, 2013	4
Manchaca Road at Austin this gauge	TX	13.0	16.10 ft, Oct 30, 2015	0

Other gauges in Travis County

Flood gauges in Travis County

Hwy 71 near Oak Hill	12.0	24.83 ft, Oct 30, 2015	4
Loop 360	8.0	26.00 ft, May 25, 1929	15
Loop 360	5.0	18.72 ft, Nov 24, 2000	5
Austin	33.0	51.00 ft, Jul 7, 1869	7
Lake Travis	685.0	710.44 ft, Dec 25, 1991	7
US 183	17.0	40.15 ft, Oct 31, 2013	8
West 12th Street	7.0	23.11 ft, May 24, 1981	15
FM 1826 near Austin	8.0	11.06 ft, May 4, 2019	0
Oak Hill	6.0	12.01 ft, Oct 13, 2013	4

Travis County: every hazard · River floods across the country · Texas

NOAA National Water Prediction Service, gauge AAIT2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.