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Hydrograph River at a Glance Download Inundation
Mapping
Colorado River (TX) at Bastrop Stage (ft)Flow (cfs)Observed: 3.54 ft at 5:00AM Apr 21, 2017Observed: 3.5 ft at 6:00AM Apr 21, 2017Observed: 3.51 ft at 7:00AM Apr 21, 2017Observed: 3.55 ft at 8:00AM Apr 21, 2017Observed: 3.64 ft at 9:00AM Apr 21, 2017Observed: 3.75 ft at 10:00AM Apr 21, 2017Observed: 3.86 ft at 11:00AM Apr 21, 2017Observed: 3.93 ft at 12:00PM Apr 21, 2017Observed: 3.99 ft at 1:00PM Apr 21, 2017Observed: 4.06 ft at 2:00PM Apr 21, 2017Observed: 4.14 ft at 5:00PM Apr 21, 2017Observed: 4.15 ft at 6:00PM Apr 21, 2017Observed: 4.13 ft at 7:00PM Apr 21, 2017Observed: 4.1 ft at 8:00PM Apr 21, 2017Observed: 4.05 ft at 9:00PM Apr 21, 2017Observed: 4 ft at 10:00PM Apr 21, 2017Observed: 3.93 ft at 11:00PM Apr 21, 2017Observed: 3.86 ft at 12:00AM Apr 22, 2017Observed: 3.79 ft at 1:00AM Apr 22, 2017Observed: 3.72 ft at 2:00AM Apr 22, 2017Observed: 3.65 ft at 3:00AM Apr 22, 2017Observed: 3.6 ft at 4:00AM Apr 22, 2017Observed: 3.57 ft at 5:00AM Apr 22, 2017Observed: 3.58 ft at 6:00AM Apr 22, 2017Observed: 3.63 ft at 7:00AM Apr 22, 2017Observed: 3.71 ft at 8:00AM Apr 22, 2017Observed: 3.81 ft at 9:00AM Apr 22, 2017Observed: 3.9 ft at 10:00AM Apr 22, 2017Observed: 3.99 ft at 11:00AM Apr 22, 2017Observed: 4.05 ft at 12:00PM Apr 22, 2017Observed: 4.12 ft at 1:00PM Apr 22, 2017Observed: 4.16 ft at 2:00PM Apr 22, 2017Observed: 4.21 ft at 3:00PM Apr 22, 2017Observed: 4.25 ft at 4:00PM Apr 22, 2017Observed: 4.3 ft at 5:00PM Apr 22, 2017Observed: 4.32 ft at 6:00PM Apr 22, 2017Highest Observation: 4.34 ft at 7:00PM Apr 22, 2017Highest Observation: 4.34 ft at 8:00PM Apr 22, 2017Observed: 4.32 ft at 9:00PM Apr 22, 2017Observed: 4.29 ft at 10:00PM Apr 22, 2017Observed: 4.23 ft at 11:00PM Apr 22, 2017Observed: 4.17 ft at 12:00AM Apr 23, 2017Observed: 4.09 ft at 1:00AM Apr 23, 2017Observed: 4.01 ft at 2:00AM Apr 23, 2017Observed: 3.93 ft at 3:00AM Apr 23, 2017Observed: 3.84 ft at 4:00AM Apr 23, 2017Observed: 3.77 ft at 5:00AM Apr 23, 2017Observed: 3.63 ft at 7:00AM Apr 23, 2017Observed: 3.59 ft at 8:00AM Apr 23, 2017Observed: 3.57 ft at 9:00AM Apr 23, 2017Observed: 3.61 ft at 10:00AM Apr 23, 2017Observed: 3.66 ft at 11:00AM Apr 23, 2017Observed: 3.73 ft at 12:00PM Apr 23, 2017Observed: 3.82 ft at 2:00PM Apr 23, 2017Observed: 3.83 ft at 3:00PM Apr 23, 2017Observed: 3.82 ft at 4:00PM Apr 23, 2017Observed: 3.79 ft at 5:00PM Apr 23, 2017Observed: 3.75 ft at 6:00PM Apr 23, 2017Observed: 3.7 ft at 7:00PM Apr 23, 2017Observed: 3.65 ft at 8:00PM Apr 23, 2017Observed: 3.59 ft at 9:00PM Apr 23, 2017Observed: 3.54 ft at 10:00PM Apr 23, 2017Observed: 3.49 ft at 11:00PM Apr 23, 2017Observed: 3.43 ft at 12:00AM Apr 24, 2017Observed: 3.38 ft at 1:00AM Apr 24, 2017Observed: 3.33 ft at 2:00AM Apr 24, 2017Observed: 3.29 ft at 3:00AM Apr 24, 2017Observed: 3.25 ft at 4:00AM Apr 24, 2017Observed: 3.21 ft at 5:00AM Apr 24, 2017Observed: 3.18 ft at 6:00AM Apr 24, 2017Observed: 3.15 ft at 7:00AM Apr 24, 2017Observed: 3.13 ft at 8:00AM Apr 24, 2017Observed: 3.12 ft at 9:00AM Apr 24, 2017Observed: 3.15 ft at 10:00AM Apr 24, 2017Observed: 3.21 ft at 11:00AM Apr 24, 2017Observed: 3.33 ft at 12:00PM Apr 24, 2017Observed: 3.46 ft at 1:00PM Apr 24, 2017Observed: 3.55 ft at 2:00PM Apr 24, 2017Observed: 3.63 ft at 5:00PM Apr 24, 2017Observed: 3.61 ft at 6:00PM Apr 24, 2017Observed: 3.57 ft at 7:00PM Apr 24, 2017Observed: 3.54 ft at 8:00PM Apr 24, 2017Observed: 3.49 ft at 9:00PM Apr 24, 2017Observed: 3.44 ft at 10:00PM Apr 24, 2017Observed: 3.4 ft at 11:00PM Apr 24, 2017Observed: 3.35 ft at 12:00AM Apr 25, 2017Observed: 3.31 ft at 1:00AM Apr 25, 2017Observed: 3.27 ft at 2:00AM Apr 25, 2017Observed: 3.23 ft at 3:00AM Apr 25, 2017Observed: 3.19 ft at 4:00AM Apr 25, 2017Observed: 3.16 ft at 5:00AM Apr 25, 2017Observed: 3.13 ft at 6:00AM Apr 25, 2017Observed: 3.1 ft at 7:00AM Apr 25, 2017Observed: 3.08 ft at 8:00AM Apr 25, 2017Observed: 3.08 ft at 9:00AM Apr 25, 2017Observed: 3.11 ft at 10:00AM Apr 25, 2017Observed: 3.19 ft at 11:00AM Apr 25, 2017Observed: 3.32 ft at 12:00PM Apr 25, 2017Observed: 3.44 ft at 1:00PM Apr 25, 2017Observed: 3.54 ft at 2:00PM Apr 25, 2017Observed: 3.59 ft at 3:00PM Apr 25, 2017Observed: 3.61 ft at 4:00PM Apr 25, 2017Observed: 3.6 ft at 5:00PM Apr 25, 2017Observed: 3.59 ft at 6:00PM Apr 25, 2017Observed: 3.55 ft at 7:00PM Apr 25, 2017Observed: 3.51 ft at 8:00PM Apr 25, 2017Observed: 3.46 ft at 9:00PM Apr 25, 2017Observed: 3.42 ft at 10:00PM Apr 25, 2017Observed: 3.38 ft at 11:00PM Apr 25, 2017Observed: 3.34 ft at 12:00AM Apr 26, 2017Observed: 3.29 ft at 1:00AM Apr 26, 2017Observed: 3.26 ft at 2:00AM Apr 26, 2017Observed: 3.22 ft at 3:00AM Apr 26, 2017Observed: 3.18 ft at 4:00AM Apr 26, 2017USGS--Water Resources of the United StatesBRTT2(plotting HGIRZ) Graph Created (4:47AM Apr 26, 2017)ObservedLatest observed value: 3.18 ft at 4:00 AM CDT 26-Apr-2017. Flood Stage is 23 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Colorado River (TX) at Bastrop are issued as needed during times of high water, but are not routinely available.
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Upstream Gauge - at Austin Upstream Gauge Downstream Gauge Downstream Gauge - near Smithville
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 25
Flood Stage: 23
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 60.30 ft on 07/07/1869
(2) 57.00 ft on 06/16/1935
(3) 53.30 ft on 12/04/1913
(4) 37.48 ft on 12/22/1991
(5) 36.17 ft on 10/31/2015 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 26.59 ft on 05/28/2016
(2) 36.17 ft on 10/31/2015 (P)
(3) 31.07 ft on 05/26/2015
(4) 31.65 ft on 11/22/2004
(5) 30.96 ft on 11/17/2001
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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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
37 Widespread disastrous flooding is to the roofs of the lowest homes in the Doty River, Hidden Valley, and Pecan Shores subdivisions above Smithville. Flow approaches the lowest homes and the golf course near Bastrop
35 Disastrous flooding severely floods homes between Bastrop and Smithville in the Doty River, Hidden Valley, and Pecan Shores subdivisions. Livestock are extremely vulnerable in the flood plain. Roads and bridges flood severely and are very dangerous. Flow threatens lowest homes near bastrop and facilities and lowest areas of the golf course near Bastrop
33 Disastrous flooding severely damages the Doty River, Hidden Valley, and Pecan Shores subdivisions above Smithville. Roads and bridges near the river are very dangerous
31 Disastrous flooding reaches many homes between Bastrop and Smithville in the Doty River, Hidden Valley and Pecan Shores subdivisions. Roads and bridges in the flood plain are very dangerous. Livestock should be moved from the flood plain
29 Lowest homes in the Doty River, Hidden Valley and Pecan Shores subdivisions above Smithville flood. Many primary and secondary roads and bridges flood and are very dangerous to motorists. Livestock and equipment should be moved from the flood plain
28 Major flooding reaches lowest homes downstream above Smithville in the Doty River, Pecan Shores, and Hidden Valley Estate subdivisions. Low roads and bridges near the river flood and are very dangerous to motorists
27 Moderate lowland flooding below Austin to below Smithville threatens homes above Smithville in the Doty River, Hidden Valley, and Pecan Shores Estates subdivisions. Livestock should be moved from vulnerable areas of the flood plain. Low roads and bridges in the flood plain are flooded and dangerous to motorists
25 Moderate lowland flooding reaches bottomlands above Bastrop near the Colorado River and Piney and Wilbarger Creek confluences. Water begins to enter the city park and officials will close the park
23 Minor lowland flooding reaches lowest areas of the flood plain. Secondary roads and low bridges are flooded
20 Flow exceeds bankfull into lowest areas of the flood plain. Jogging trail at Fisherman's Park is flooded.
18 Flow exceeds bankfull into lowest areas of the flood plain
16 Flow exceeds bankfull into lowest areas of the flood plain
14 Flow exceeds low sections of the banks
About This Location Collapse

Latitude: 30.104444° N, Longitude: 97.319167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 23 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 29 307.38 ft 330.38 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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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Austin/San Antonio Weather Forecast Office
2090 Airport Rd.
New Braunfels, TX 78130
(830) 629-0130
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Page last modified: 21-Dec-2016 5:20 PM
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