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Hydrograph River at a Glance Download
Colorado River (TX) at Austin Stage (ft)Flow (cfs)Observed: 12.83 ft at 9:00PM Jul 20, 2014Observed: 12.88 ft at 10:00PM Jul 20, 2014Highest Observation: 12.9 ft at 11:00PM Jul 20, 2014Highest Observation: 12.9 ft at 12:00AM Jul 21, 2014Observed: 12.88 ft at 1:00AM Jul 21, 2014Observed: 12.85 ft at 2:00AM Jul 21, 2014Observed: 12.82 ft at 3:00AM Jul 21, 2014Observed: 12.78 ft at 4:00AM Jul 21, 2014Observed: 12.74 ft at 5:00AM Jul 21, 2014Observed: 12.7 ft at 6:00AM Jul 21, 2014Observed: 12.66 ft at 7:00AM Jul 21, 2014Observed: 12.61 ft at 8:00AM Jul 21, 2014Observed: 12.56 ft at 9:00AM Jul 21, 2014Observed: 12.51 ft at 10:00AM Jul 21, 2014Observed: 12.47 ft at 11:00AM Jul 21, 2014Observed: 12.43 ft at 12:00PM Jul 21, 2014Observed: 12.4 ft at 1:00PM Jul 21, 2014Observed: 12.38 ft at 2:00PM Jul 21, 2014Observed: 12.36 ft at 3:00PM Jul 21, 2014Observed: 12.34 ft at 4:00PM Jul 21, 2014Observed: 12.33 ft at 5:00PM Jul 21, 2014Observed: 12.41 ft at 6:00PM Jul 21, 2014Observed: 12.57 ft at 7:00PM Jul 21, 2014Observed: 12.71 ft at 8:00PM Jul 21, 2014Observed: 12.81 ft at 9:00PM Jul 21, 2014Observed: 12.87 ft at 10:00PM Jul 21, 2014Observed: 12.89 ft at 11:00PM Jul 21, 2014Highest Observation: 12.9 ft at 12:00AM Jul 22, 2014Observed: 12.88 ft at 1:00AM Jul 22, 2014Observed: 12.85 ft at 2:00AM Jul 22, 2014Observed: 12.81 ft at 3:00AM Jul 22, 2014Observed: 12.78 ft at 4:00AM Jul 22, 2014Observed: 12.73 ft at 5:00AM Jul 22, 2014Observed: 12.69 ft at 6:00AM Jul 22, 2014Observed: 12.64 ft at 7:00AM Jul 22, 2014Observed: 12.6 ft at 8:00AM Jul 22, 2014Observed: 12.55 ft at 9:00AM Jul 22, 2014Observed: 12.51 ft at 10:00AM Jul 22, 2014Observed: 12.66 ft at 11:00AM Jul 22, 2014Observed: 12.72 ft at 12:00PM Jul 22, 2014Observed: 12.65 ft at 1:00PM Jul 22, 2014Observed: 12.58 ft at 2:00PM Jul 22, 2014Observed: 12.51 ft at 3:00PM Jul 22, 2014Observed: 12.44 ft at 4:00PM Jul 22, 2014Observed: 12.38 ft at 5:00PM Jul 22, 2014Observed: 12.35 ft at 6:00PM Jul 22, 2014Observed: 12.41 ft at 7:00PM Jul 22, 2014Observed: 12.56 ft at 8:00PM Jul 22, 2014Observed: 12.69 ft at 9:00PM Jul 22, 2014Observed: 12.79 ft at 10:00PM Jul 22, 2014Observed: 12.84 ft at 11:00PM Jul 22, 2014Observed: 12.86 ft at 12:00AM Jul 23, 2014Observed: 12.86 ft at 1:00AM Jul 23, 2014Observed: 12.84 ft at 2:00AM Jul 23, 2014Observed: 12.81 ft at 3:00AM Jul 23, 2014Observed: 12.78 ft at 4:00AM Jul 23, 2014Observed: 12.74 ft at 5:00AM Jul 23, 2014Observed: 12.7 ft at 6:00AM Jul 23, 2014Observed: 12.67 ft at 7:00AM Jul 23, 2014Observed: 12.61 ft at 8:00AM Jul 23, 2014Observed: 12.58 ft at 9:00AM Jul 23, 2014Observed: 12.53 ft at 10:00AM Jul 23, 2014Observed: 12.49 ft at 11:00AM Jul 23, 2014Observed: 12.46 ft at 12:00PM Jul 23, 2014Observed: 12.42 ft at 1:00PM Jul 23, 2014Observed: 12.39 ft at 2:00PM Jul 23, 2014Observed: 12.36 ft at 3:00PM Jul 23, 2014Observed: 12.33 ft at 4:00PM Jul 23, 2014Observed: 12.31 ft at 5:00PM Jul 23, 2014Observed: 12.29 ft at 6:00PM Jul 23, 2014Observed: 12.31 ft at 7:00PM Jul 23, 2014Observed: 12.4 ft at 8:00PM Jul 23, 2014Observed: 12.47 ft at 9:00PM Jul 23, 2014Observed: 12.55 ft at 10:00PM Jul 23, 2014Observed: 12.64 ft at 11:00PM Jul 23, 2014Observed: 12.69 ft at 12:00AM Jul 24, 2014Observed: 12.72 ft at 1:00AM Jul 24, 2014Observed: 12.73 ft at 2:00AM Jul 24, 2014Observed: 12.73 ft at 3:00AM Jul 24, 2014Observed: 12.71 ft at 4:00AM Jul 24, 2014Observed: 12.68 ft at 5:00AM Jul 24, 2014Observed: 12.65 ft at 6:00AM Jul 24, 2014Observed: 12.62 ft at 7:00AM Jul 24, 2014Observed: 12.58 ft at 8:00AM Jul 24, 2014Observed: 12.55 ft at 9:00AM Jul 24, 2014Observed: 12.53 ft at 10:00AM Jul 24, 2014Observed: 12.49 ft at 11:00AM Jul 24, 2014Observed: 12.46 ft at 12:00PM Jul 24, 2014Observed: 12.44 ft at 1:00PM Jul 24, 2014Observed: 12.41 ft at 2:00PM Jul 24, 2014Observed: 12.39 ft at 3:00PM Jul 24, 2014Observed: 12.36 ft at 4:00PM Jul 24, 2014Observed: 12.34 ft at 5:00PM Jul 24, 2014Observed: 12.32 ft at 6:00PM Jul 24, 2014Observed: 12.31 ft at 7:00PM Jul 24, 2014Observed: 12.34 ft at 8:00PM Jul 24, 2014Observed: 12.37 ft at 9:00PM Jul 24, 2014Observed: 12.39 ft at 10:00PM Jul 24, 2014Observed: 12.41 ft at 11:00PM Jul 24, 2014Observed: 12.39 ft at 12:00AM Jul 25, 2014Observed: 12.38 ft at 1:00AM Jul 25, 2014Observed: 12.36 ft at 2:00AM Jul 25, 2014Observed: 12.34 ft at 3:00AM Jul 25, 2014Observed: 12.32 ft at 4:00AM Jul 25, 2014Observed: 12.3 ft at 5:00AM Jul 25, 2014Observed: 12.28 ft at 6:00AM Jul 25, 2014Observed: 12.25 ft at 7:00AM Jul 25, 2014Observed: 12.23 ft at 8:00AM Jul 25, 2014Observed: 12.21 ft at 9:00AM Jul 25, 2014Observed: 12.2 ft at 10:00AM Jul 25, 2014Observed: 12.19 ft at 11:00AM Jul 25, 2014Observed: 12.18 ft at 12:00PM Jul 25, 2014Observed: 12.16 ft at 1:00PM Jul 25, 2014Observed: 12.12 ft at 2:00PM Jul 25, 2014Observed: 12.09 ft at 3:00PM Jul 25, 2014Observed: 12.06 ft at 4:00PM Jul 25, 2014Observed: 12.04 ft at 5:00PM Jul 25, 2014Observed: 12.01 ft at 6:00PM Jul 25, 2014Observed: 11.99 ft at 7:00PM Jul 25, 2014USGS--Water Resources of the United StatesACRT2(plotting HGIRZ) Graph Created (8:01PM Jul 25, 2014)ObservedLatest observed value: 11.99 ft at 7:00 PM CDT 25-Jul-2014. Flood Stage is 33 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Flood stage level has recently changed.

NOTE: Forecasts for the Colorado River (TX) at Austin are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Upstream Gauge - at Lake Austin Upstream Gauge Downstream Gauge Downstream Gauge - at Bastrop
Flood Categories (in feet)
Major Flood Stage:42
Moderate Flood Stage:38
Flood Stage:33
Action Stage:25

Historical Crests
(1) 51.00 ft on 07/07/1869
(2) 50.00 ft on 06/15/1935
(3) 45.20 ft on 07/25/1938
(4) 43.50 ft on 04/07/1900
(5) 43.20 ft on 09/28/1936
Show More Historical Crests

(P): Preliminary values subject to further review.

Low Water Records
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
46 SEVERAL HOMES FLOOD IN THE COLORADO RIVER FLOOD PLAIN BELOW DEL VALLE TO BASTROP AND ALONG ONION CREEK ABOVE THE COLORADO RIVER CONFLUENCE ARE SEVERELY FLOODED. NUMEROUS STREETS AND ROADS ARE EXTREMELY DANGEROUS. MAJOR FLOODING EXTENDS WELL INTO THE FLOOD PLAIN DESTROYING EQUIPMENT AND LIVESTOCK
44 MAJOR FLOODING APPROACHES HOMES IN THE FLOOD PLAIN BELOW DEL VALLE TO BASTROP. EQUIPMENT AND LIVESTOCK SHOULD BE MOVED FROM THE FLOOD PLAIN TO BELOW BASTROP. SECONDARY AND PRIMARY ROADS AND BRIDGES ARE FLOODED SEVERELY AND VERY DANGEROUS TO MOTORISTS.
42 MAJOR FLOODING APPROACHES THE LOWEST RESIDENCES ALONG THE COLORADO RIVER BELOW DEL VALLE. RESIDENCES IN THE LOWER REACH OF INION CREEK ARE VULNERABLE TO FLOODING AS THE COLORADO RIVER BACKS UP THE CREEK AND ADDS TO RUNOFF DOWN ONION CREEK. LIVESTOCK AND EQUIPMENT SHOULD BE MOVED FROM THE FLOOD PLAIN BELOW AUSTIN TO BASTROP. LOWEST HOMES FLOOD NEAR WEBBERVILLE
40 LOWEST HOMES IN THE FLOOD PLAIN BELOW LONGHORN DAM TO ABOVE BASTROP FLOOD. LIVESTOCK AND EQUIPMENT SHOULD BE MOVED FROM LOW AREAS OF THE FLOOD PLAIN BELOW LAKE TRAVIS TO BELOQW BASTROP. ROADS AND LOW BRIDGES IN THE FLOOD PLAIN FLOOD SEVERELY AND ARE DANGEROUS TO MOTORISTS
38 MODERATE FLOODING APPROACHES THE COLORADO RIVER RANCHETTES IN THE SOUTHWEST QUADRANT OF THE CONFLUENCE OF THE COLORADO RIVER AND DRY CREEK. LOWEST HOMES DOWNSTREAM BELOW AUSTIN FLOOD. LIVESTOCK SHOULD BE MOVED FROM VULNERABLE AREAS OF THE FLOOD PLAIN
36 SEVERAL HOMES ARE THREATENED AS THE COLORADO RIVER BACKS UP ONION CREEK. ANY ADDITIONAL FLOODING DOWN ONION CREEK MAY FLOOD HOMES NEAR THE CONFLUENCE WITH THE COLORADO RIVER. LIVESTOCK SHOULD BE MOVED FROM VULNERABLE AREAS OF THE FLOOD PLAIN BELOW AUSTIN. LOWEST HOMES BELOW AUSTIN FLOOD
35 LOWEST HOMES AND APARTMENTS NEAR THE COLORADO RIVER AND THE LOWER PART OF ONION CREEK ARE THREATENED. RESIDENTS SHOULD MONITOR NOAA ALL HAZARDS WEATHER RADIO FOR DEVELOPING FLOOD WARNINGS. LIVESTOCK CAN BE CUT OFF IN LOW AREAS BELOW AUSTIN. LOWEST HOMES BELOW AUSTIN TO BASTROP FLOOD
33 MINOR LOWLAND FLOODING REACHES LOW AREAS OF THE FLOOD PLAIN. NO SIGNIFICANT DAMAGE OCCURS AT THIS LEVEL NEAR AUSTIN BUT LIVESTOCK SHOULD BE MOVED FROM LOWLYING AREAS DOWNSTREAM. LOWEST HOMES BELOW AUSTIN TO BASTROP ARE THREATENED
31 FLOW IS WELL INTO THE FLOOD PLAIN BELOW LAKE TRAVIS DOWNSTREAM. LIVESTOCK SHOULD BE MOVED FROM LOW AREAS OF THE FLOOD PLAIN DOWNSTREAM BELOW AUSTIN
29 FLOW IS INTO THE LOWEST SECTIONS OF THE FLOOD PLAIN
27 FLOW IS IN THE LOWEST SECTIONS OF THE FLOOD PLAIN
25 FLOW EXCEEDS THE LOWEST SECTIONS OF THE BANKS
About This Location Collapse

Latitude: 30.246111° N, Longitude: 97.680000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 33 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 391.97 ft 424.97 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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NWS Information
National Weather Service
Austin/San Antonio Weather Forecast Office
2090 Airport Rd.
New Braunfels, TX 78130
(830) 606-3617
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Page last modified: 16-Jul-2014 2:07 AM
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