MEDIAN FLOW RATE · 1 YEAR
0cfs 78.7% vs avg
Optimal band: 4–6 cfs
PERIOD HIGH
1,250cfs
PERIOD LOW
1cfs
RUNNABLE
12%
last 1 year in band
Gauge Height
3.43ft
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Your History · Onion Ck at US Hwy 183, Austin, TX
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Station Location
30.1780, -97.6886Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-09-01 00:00 UTC
Site #08159000·USGS
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