Iowa River at Marshalltown
No watches, warnings or advisories are in effect for this area.
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/16/2025 12:00 AM CDTRecord: 22.3 ftCATEGORY STAGE 
Major Flooding 26 ft Moderate Flooding 23 ft Minor Flooding 19 ft Action 14 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 26 - Water reaches the top of the earthen levee along the river at Iowa 14.
- 22 - Water reaches the low beams of the Iowa 14 bridge.
- 21.5 - Water affects several roads east of Marshalltown...including US 30...E Main St Rd and Zeller Ave.
- 21.4 - Water affects both lanes of Iowa 14 north of Marshalltown.
- 21.2 - Water affects several gravel roads north and northwest of Marshalltown...including Stanley Mill Rd...N Center St...Oaks Ave and Prairie Ave.
- 21 - Iowa 330 south of Albion near Timmons Grove Park is closed. Water affects most of Timmons Grove County Park.
- 20.5 - In Albion...water affects parts of Marsh Ave...Stanley Mill Rd and 160th St. Water threatens Iowa 330 near the Linn Creek overpass which is located west of Marshalltown...or about two miles northeast of the US 30 junction.
- 20 - Water approaches the top of the concrete bridge piers of the Iowa 14 bridge.
- 19.5 - Water affects the southbound lanes of Iowa 14 as well as Iowa 330 south of Albion.
- 19 - Water affects Iowa 14 north of the river as well as Iowa 330 south of Albion.
- 18 - Widespread agricultural and lowland flooding occur along Iowa 330 south of Albion.
- 17 - Water threatens roads within Timmons Grove County Park as well as the bicycle path along 18th Ave in Marshalltown.
- 16.5 - Water affects the underside of the primary concrete support span of Iowa 14.
- 16 - Water affects the access road serving north portions of Timmons Grove County Park.
- 15 - Water approaches the bridge crossing from the County Three Bridges Rd east of Marshalltown. Water affects agricultural land.
- 14 - Lowland flooding occurs north of town near Iowa 14.
Gauge Location
Recent Crests
| 1. | 20.00 ft | on 05-23-2024 |
| 2. | 17.71 ft | on 02-28-2023 |
| 3. | 16.64 ft | on 06-16-2022 |
| 4. | 13.22 ft | on 03-07-2021 |
| 5. | 18.21 ft | on 06-23-2020 |
| 6. | 20.32 ft | on 03-15-2019 |
| 7. | 18.25 ft | on 09-27-2018 |
| 8. | 17.63 ft | on 10-01-2016 |
| 9. | 20.38 ft | on 12-15-2015 |
| 10. | 19.99 ft | on 08-30-2015 |
Recent Crests
| 1. | 20.00 ft | on 05-23-2024 |
| 2. | 17.71 ft | on 02-28-2023 |
| 3. | 16.64 ft | on 06-16-2022 |
| 4. | 13.22 ft | on 03-07-2021 |
| 5. | 18.21 ft | on 06-23-2020 |
| 6. | 20.32 ft | on 03-15-2019 |
| 7. | 18.25 ft | on 09-27-2018 |
| 8. | 17.63 ft | on 10-01-2016 |
| 9. | 20.38 ft | on 12-15-2015 |
| 10. | 19.99 ft | on 08-30-2015 |
| 11. | 22.25 ft | on 07-02-2014 |
| 12. | 22.08 ft | on 05-30-2013 |
| 13. | 13.09 ft | on 05-04-2012 |
| 14. | 16.93 ft | on 02-19-2011 |
| 15. | 19.00 ft | on 06-28-2010 |
| 16. | 18.30 ft | on 04-28-2009 |
| 17. | 21.79 ft | on 06-13-2008 |
| 18. | 20.13 ft | on 06-24-2007 |
| 19. | 14.22 ft | on 05-02-2006 |
| 20. | 17.13 ft | on 06-30-2005 |
| 21. | 18.18 ft | on 05-26-2004 |
| 22. | 16.37 ft | on 05-10-2003 |
| 23. | 13.08 ft | on 05-13-2002 |
| 24. | 17.43 ft | on 03-21-2001 |
| 25. | 16.41 ft | on 07-11-2000 |
| 26. | 18.22 ft | on 06-11-1999 |
| 27. | 19.66 ft | on 06-22-1998 |
| 28. | 17.87 ft | on 06-22-1997 |
| 29. | 16.52 ft | on 06-18-1996 |
| 30. | 15.48 ft | on 05-10-1995 |
| 31. | 16.75 ft | on 03-06-1994 |
| 32. | 20.77 ft | on 08-17-1993 |
| 33. | 16.10 ft | on 02-19-1992 |
| 34. | 19.97 ft | on 06-05-1991 |
| 35. | 20.38 ft | on 06-18-1990 |
| 36. | 13.90 ft | on 03-10-1989 |
| 37. | 13.94 ft | on 03-08-1988 |
| 38. | 15.44 ft | on 08-27-1987 |
| 39. | 15.99 ft | on 10-13-1986 |
| 40. | 18.10 ft | on 07-01-1986 |
| 41. | 17.07 ft | on 03-04-1985 |
| 42. | 18.29 ft | on 06-14-1984 |
| 43. | 18.65 ft | on 07-04-1983 |
| 44. | 17.50 ft | on 03-20-1982 |
| 45. | 14.15 ft | on 06-25-1981 |
| 46. | 15.85 ft | on 06-14-1980 |
| 47. | 19.77 ft | on 03-19-1979 |
| 48. | 16.50 ft | on 09-21-1978 |
| 49. | 16.35 ft | on 08-17-1977 |
| 50. | 17.27 ft | on 04-19-1976 |
| 51. | 18.42 ft | on 03-21-1975 |
| 52. | 19.38 ft | on 06-23-1974 |
| 53. | 16.52 ft | on 04-17-1973 |
| 54. | 17.55 ft | on 06-14-1972 |
| 55. | 17.22 ft | on 03-15-1971 |
| 56. | 14.99 ft | on 05-14-1970 |
| 57. | 19.37 ft | on 07-09-1969 |
| 58. | 11.84 ft | on 07-20-1968 |
| 59. | 15.49 ft | on 06-13-1967 |
| 60. | 16.25 ft | on 06-13-1966 |
| 61. | 17.63 ft | on 04-06-1965 |
| 62. | 10.40 ft | on 05-08-1964 |
| 63. | 12.64 ft | on 03-16-1963 |
| 64. | 15.90 ft | on 03-29-1962 |
| 65. | 14.81 ft | on 03-31-1961 |
| 66. | 17.51 ft | on 03-31-1960 |
| 67. | 15.57 ft | on 03-27-1959 |
| 68. | 14.11 ft | on 06-13-1958 |
| 69. | 15.24 ft | on 06-16-1957 |
| 70. | 9.89 ft | on 05-13-1956 |
| 71. | 11.75 ft | on 02-20-1955 |
| 72. | 16.09 ft | on 08-28-1954 |
| 73. | 16.70 ft | on 02-21-1953 |
| 74. | 13.99 ft | on 03-11-1952 |
| 75. | 16.13 ft | on 03-29-1951 |
| 76. | 15.80 ft | on 03-07-1950 |
| 77. | 14.80 ft | on 03-05-1949 |
| 78. | 15.80 ft | on 02-28-1948 |
| 79. | 16.80 ft | on 06-13-1947 |
| 80. | 15.60 ft | on 01-06-1946 |
| 81. | 14.10 ft | on 03-16-1945 |
| 82. | 15.90 ft | on 05-20-1944 |
| 83. | 12.10 ft | on 02-27-1943 |
| 84. | 15.80 ft | on 06-03-1942 |
| 85. | 9.60 ft | on 09-08-1941 |
| 86. | 7.90 ft | on 06-23-1940 |
| 87. | 13.80 ft | on 03-13-1939 |
| 88. | 11.30 ft | on 05-06-1938 |
| 89. | 13.80 ft | on 03-06-1937 |
| 90. | 13.60 ft | on 03-09-1936 |
| 91. | 15.70 ft | on 03-05-1935 |
| 92. | 6.30 ft | on 01-24-1934 |
| 93. | 15.50 ft | on 04-04-1933 |
| 94. | 10.60 ft | on 04-01-1930 |
| 95. | 15.00 ft | on 08-03-1929 |
| 96. | 13.00 ft | on 06-09-1927 |
| 97. | 13.90 ft | on 09-19-1926 |
| 98. | 7.60 ft | on 06-19-1925 |
| 99. | 13.60 ft | on 06-29-1924 |
| 100. | 10.50 ft | on 04-04-1923 |
| 101. | 11.70 ft | on 02-24-1922 |
| 102. | 13.40 ft | on 09-17-1921 |
| 103. | 12.40 ft | on 10-06-1919 |
| 104. | 13.00 ft | on 03-17-1919 |
| 105. | 17.74 ft | on 06-04-1918 |
| 106. | 14.60 ft | on 03-27-1917 |
| 107. | 9.50 ft | on 03-29-1916 |
| 108. | 13.80 ft | on 06-01-1915 |
| 109. | 13.00 ft | on 05-29-1903 |
Historic Crests
| 1. | 22.25 ft | on 07-02-2014 |
| 2. | 22.08 ft | on 05-30-2013 |
| 3. | 21.79 ft | on 06-13-2008 |
| 4. | 20.77 ft | on 08-17-1993 |
| 5. | 20.38 ft | on 06-18-1990 |
| 6. | 20.38 ft | on 12-15-2015 |
| 7. | 20.32 ft | on 03-15-2019 |
| 8. | 20.13 ft | on 06-24-2007 |
| 9. | 20.00 ft | on 05-23-2024 |
| 10. | 19.99 ft | on 08-30-2015 |
Historic Crests
| 1. | 22.25 ft | on 07-02-2014 |
| 2. | 22.08 ft | on 05-30-2013 |
| 3. | 21.79 ft | on 06-13-2008 |
| 4. | 20.77 ft | on 08-17-1993 |
| 5. | 20.38 ft | on 06-18-1990 |
| 6. | 20.38 ft | on 12-15-2015 |
| 7. | 20.32 ft | on 03-15-2019 |
| 8. | 20.13 ft | on 06-24-2007 |
| 9. | 20.00 ft | on 05-23-2024 |
| 10. | 19.99 ft | on 08-30-2015 |
| 11. | 19.97 ft | on 06-05-1991 |
| 12. | 19.77 ft | on 03-19-1979 |
| 13. | 19.66 ft | on 06-22-1998 |
| 14. | 19.38 ft | on 06-23-1974 |
| 15. | 19.37 ft | on 07-09-1969 |
| 16. | 19.00 ft | on 06-28-2010 |
| 17. | 18.65 ft | on 07-04-1983 |
| 18. | 18.42 ft | on 03-21-1975 |
| 19. | 18.30 ft | on 04-28-2009 |
| 20. | 18.29 ft | on 06-14-1984 |
| 21. | 18.25 ft | on 09-27-2018 |
| 22. | 18.22 ft | on 06-11-1999 |
| 23. | 18.21 ft | on 06-23-2020 |
| 24. | 18.18 ft | on 05-26-2004 |
| 25. | 18.10 ft | on 07-01-1986 |
| 26. | 17.87 ft | on 06-22-1997 |
| 27. | 17.74 ft | on 06-04-1918 |
| 28. | 17.71 ft | on 02-28-2023 |
| 29. | 17.63 ft | on 10-01-2016 |
| 30. | 17.63 ft | on 04-06-1965 |
| 31. | 17.55 ft | on 06-14-1972 |
| 32. | 17.51 ft | on 03-31-1960 |
| 33. | 17.50 ft | on 03-20-1982 |
| 34. | 17.43 ft | on 03-21-2001 |
| 35. | 17.27 ft | on 04-19-1976 |
| 36. | 17.22 ft | on 03-15-1971 |
| 37. | 17.13 ft | on 06-30-2005 |
| 38. | 17.07 ft | on 03-04-1985 |
| 39. | 16.93 ft | on 02-19-2011 |
| 40. | 16.80 ft | on 06-13-1947 |
| 41. | 16.75 ft | on 03-06-1994 |
| 42. | 16.70 ft | on 02-21-1953 |
| 43. | 16.64 ft | on 06-16-2022 |
| 44. | 16.52 ft | on 06-18-1996 |
| 45. | 16.52 ft | on 04-17-1973 |
| 46. | 16.50 ft | on 09-21-1978 |
| 47. | 16.41 ft | on 07-11-2000 |
| 48. | 16.37 ft | on 05-10-2003 |
| 49. | 16.35 ft | on 08-17-1977 |
| 50. | 16.25 ft | on 06-13-1966 |
| 51. | 16.13 ft | on 03-29-1951 |
| 52. | 16.10 ft | on 02-19-1992 |
| 53. | 16.09 ft | on 08-28-1954 |
| 54. | 15.99 ft | on 10-13-1986 |
| 55. | 15.90 ft | on 03-29-1962 |
| 56. | 15.90 ft | on 05-20-1944 |
| 57. | 15.85 ft | on 06-14-1980 |
| 58. | 15.80 ft | on 06-03-1942 |
| 59. | 15.80 ft | on 02-28-1948 |
| 60. | 15.80 ft | on 03-07-1950 |
| 61. | 15.70 ft | on 03-05-1935 |
| 62. | 15.60 ft | on 01-06-1946 |
| 63. | 15.57 ft | on 03-27-1959 |
| 64. | 15.50 ft | on 04-04-1933 |
| 65. | 15.49 ft | on 06-13-1967 |
| 66. | 15.48 ft | on 05-10-1995 |
| 67. | 15.44 ft | on 08-27-1987 |
| 68. | 15.24 ft | on 06-16-1957 |
| 69. | 15.00 ft | on 08-03-1929 |
| 70. | 14.99 ft | on 05-14-1970 |
| 71. | 14.81 ft | on 03-31-1961 |
| 72. | 14.80 ft | on 03-05-1949 |
| 73. | 14.60 ft | on 03-27-1917 |
| 74. | 14.22 ft | on 05-02-2006 |
| 75. | 14.15 ft | on 06-25-1981 |
| 76. | 14.11 ft | on 06-13-1958 |
| 77. | 14.10 ft | on 03-16-1945 |
| 78. | 13.99 ft | on 03-11-1952 |
| 79. | 13.94 ft | on 03-08-1988 |
| 80. | 13.90 ft | on 09-19-1926 |
| 81. | 13.90 ft | on 03-10-1989 |
| 82. | 13.80 ft | on 03-13-1939 |
| 83. | 13.80 ft | on 06-01-1915 |
| 84. | 13.80 ft | on 03-06-1937 |
| 85. | 13.60 ft | on 06-29-1924 |
| 86. | 13.60 ft | on 03-09-1936 |
| 87. | 13.40 ft | on 09-17-1921 |
| 88. | 13.22 ft | on 03-07-2021 |
| 89. | 13.09 ft | on 05-04-2012 |
| 90. | 13.08 ft | on 05-13-2002 |
| 91. | 13.00 ft | on 05-29-1903 |
| 92. | 13.00 ft | on 03-17-1919 |
| 93. | 13.00 ft | on 06-09-1927 |
| 94. | 12.64 ft | on 03-16-1963 |
| 95. | 12.40 ft | on 10-06-1919 |
| 96. | 12.10 ft | on 02-27-1943 |
| 97. | 11.84 ft | on 07-20-1968 |
| 98. | 11.75 ft | on 02-20-1955 |
| 99. | 11.70 ft | on 02-24-1922 |
| 100. | 11.30 ft | on 05-06-1938 |
| 101. | 10.60 ft | on 04-01-1930 |
| 102. | 10.50 ft | on 04-04-1923 |
| 103. | 10.40 ft | on 05-08-1964 |
| 104. | 9.89 ft | on 05-13-1956 |
| 105. | 9.60 ft | on 09-08-1941 |
| 106. | 9.50 ft | on 03-29-1916 |
| 107. | 7.90 ft | on 06-23-1940 |
| 108. | 7.60 ft | on 06-19-1925 |
| 109. | 6.30 ft | on 01-24-1934 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 878.94 ft |
| moderate Flooding | 875.94 ft |
| minor Flooding | 871.94 ft |
| action | 866.94 ft |
| Latest Value | 865.96 ft |
| Gauge Zero | 852.94 ft |
Gauge Photos
No Images Found
Unique Local Info
Collaborative Agencies
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.