| 10000.0 | ** NOTE ** If you notice any errors in the below information, please contact our Webmaster at w-dmx.webmaster@noaa.gov . | | 26.0 | The U.S. Highway 30 bridge is overtopped across the river. Severe flooding also occurs along Dayton Avenue and along Interstate 35 south of U.S. Highway 30. Crest at this level eventually closes Highway 65 north of Bondurant as it moves downstream. | | 25.5 | Water starts to cover Highway 30. | | 25.0 | Hotels and industries along Dayton Avenue begin to flood. Interstate 35 south of U.S. Highway 30 and U.S. Highway 30 between Dayton and Duff Avenues is also flooded. | | 24.5 | Interstate 35 begins to flood south of the U.S. Highway 30 exit. U.S. Highway 30 is also flooded between Dayton and Duff Avenues. | | 24.0 | U.S. Highway 30 begins to flood between Dayton and Duff Avenues. Basements also begin to flood in Cambridge. | | 23.0 | The Shady Grove Trailer Park homes along SE 16th Street and the railroad just northeast of Cambridge begins to flood. | | 22.4 | Water begins to affect Kriz-Davis Company and Shaffer Auto Body. | | 21.4 | Oriole Street residences are affected. | | 21.0 | Water starts overtopping South 16th Street. Water also affects the sports complex along the river south of Hwy 30. | | 20.5 | Gravel Roads just upstream from gage site begin to flood. Agricultural flooding also occurs from Ames to northeast Polk County. | | 20.0 | Minor agricultural flooding from Ames to Cambridge. | | 19.0 | Bankfull |
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1) 26.72 ft on 08/11/2010
2) 25.57 ft on 06/27/1975
3) 25.53 ft on 07/09/1993
4) 25.40 ft on 06/17/1990
5) 25.13 ft on 06/17/1996
6) 24.70 ft on 05/30/2008
7) 23.68 ft on 03/19/1979
8) 23.20 ft on 04/26/2007
9) 23.19 ft on 06/23/1974
10) 22.81 ft on 06/15/1998
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1) 9.08 ft on 02/28/1977
2) 9.16 ft on 01/26/2000
3) 9.19 ft on 10/07/2003
4) 9.20 ft on 07/15/1956
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