Colorado River (TX) at Bastrop

1. 37.00 ftWidespread 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
2. 35.00 ftDisastrous 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
3. 33.00 ftDisastrous flooding severely damages the Doty River, Hidden Valley, and Pecan Shores subdivisions above Smithville. Roads and bridges near the river are very dangerous
4. 31.00 ftDisastrous 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
5. 29.00 ftLowest 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
6. 28.00 ftMajor 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
7. 27.00 ftModerate 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
8. 25.00 ftModerate 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
9. 23.00 ftMinor lowland flooding reaches lowest areas of the flood plain. Secondary roads and low bridges are flooded
10. 20.00 ftFlow exceeds bankfull into lowest areas of the flood plain. Jogging trail at Fisherman's Park is flooded.
11. 18.00 ftFlow exceeds bankfull into lowest areas of the flood plain
12. 16.00 ftFlow exceeds bankfull into lowest areas of the flood plain
13. 14.00 ftFlow exceeds low sections of the banks

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• August 28, 2017: 26.31 ft
• May 28, 2016: 26.59 ft
• October 31, 2015: 36.17 ft
• May 26, 2015: 31.07 ft
• November 22, 2004: 31.65 ft
• November 17, 2001: 30.96 ft
• October 19, 1998: 32.30 ft
• December 22, 1991: 37.48 ft
• June 14, 1987: 29.45 ft
• June 14, 1981: 30.70 ft

• UpstreamColorado River (TX) at Austin
• DownstreamColorado River (TX) at Smithville
• Wilbarger Creek at Elgin
• Big Sandy Creek (TX) at Elgin
• Onion Creek at US 183
• Walnut Creek at Webberville Road
• Plum Creek at Lockhart
• Williamson Creek at Jimmy Clay Road near Austin 6SE

Forecasts by the West Gulf River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.