# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-02-19 14:45:10 EST # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 05465500 Iowa River at Wapello, IA # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 05465500 1903-06-03 88700 7 USGS 05465500 1904-03-27 20600 7 USGS 05465500 1905-03-26 37800 7 USGS 05465500 1906-04-02 73800 7 USGS 05465500 1907-07-23 37300 7 USGS 05465500 1908-06-02 32400 7 USGS 05465500 1909-04-02 31800 7 USGS 05465500 1910-03-17 37600 7 USGS 05465500 1911-02-19 29400 7 USGS 05465500 1912-04-03 58000 7 14.30 USGS 05465500 1913-03-21 35000 7 USGS 05465500 1914-06-22 27000 7 USGS 05465500 1915-02-26 41800 11.50 USGS 05465500 1916-03-28 48900 12.70 USGS 05465500 1917-03-29 52000 13.20 USGS 05465500 1918-06-08 77000 15.00 USGS 05465500 1919-03-23 38100 10.80 USGS 05465500 1920-03-29 32200 9.70 USGS 05465500 1921-09-24 32400 9.60 USGS 05465500 1922-03-02 26500 8.60 USGS 05465500 1923-04-07 31700 9.60 USGS 05465500 1924-06-28 40700 11.30 USGS 05465500 1925-06-21 12900 5.20 USGS 05465500 1926-09-25 43500 11.80 USGS 05465500 1927-05-26 34200 10.10 USGS 05465500 1927-10-09 29200 9.10 2 1928-02-16 9.20 USGS 05465500 1929-03-21 72200 14.60 USGS 05465500 1930-06-17 52200 13.50 USGS 05465500 1931-09-27 6740 3.10 USGS 05465500 1931-12-02 27800 8.80 USGS 05465500 1933-04-07 62000 15.40 USGS 05465500 1934-04-11 7230 3.30 USGS 05465500 1935-03-12 35500 11.00 USGS 05465500 1936-03-18 36500 11.60 USGS 05465500 1937-03-07 53800 14.60 USGS 05465500 1938-06-15 21200 8.20 USGS 05465500 1939-03-14 37000 11.30 USGS 05465500 1940-03-21 7780 3.70 USGS 05465500 1941-03-25 16600 7.10 USGS 05465500 1942-08-07 36300 11.10 USGS 05465500 1943-08-04 24400 8.70 USGS 05465500 1944-05-25 54100 14.70 USGS 05465500 1945-03-22 56400 14.80 USGS 05465500 1946-01-08 51400 14.00 USGS 05465500 1947-06-18 94000 16.10 USGS 05465500 1948-03-21 60000 14.70 USGS 05465500 1949-03-11 44300 12.70 USGS 05465500 1950-03-14 44800 12.80 USGS 05465500 1951-04-14 67000 16.14 USGS 05465500 1952-03-14 41300 12.10 USGS 05465500 1953-02-23 32800 10.42 USGS 05465500 1954-06-29 40800 11.98 USGS 05465500 1955-04-25 23000 8.26 2 1955-02-21 10.24 1 USGS 05465500 1956-09-01 9340 4.18 USGS 05465500 1957-06-22 14200 5.89 USGS 05465500 1958-02-27 13000 2 6.48 1 USGS 05465500 1959-03-22 37200 6 11.52 USGS 05465500 1960-04-05 69000 6 17.02 USGS 05465500 1961-04-03 68000 6 16.85 USGS 05465500 1962-04-06 53700 6 15.38 USGS 05465500 1963-03-21 25100 6 9.16 USGS 05465500 1964-06-25 11800 6 5.25 USGS 05465500 1965-04-13 70800 6 17.25 USGS 05465500 1966-05-25 30300 6 10.36 USGS 05465500 1967-06-09 26700 6 9.43 USGS 05465500 1968-08-10 21500 6 8.70 USGS 05465500 1969-07-15 69200 6 17.40 USGS 05465500 1970-03-06 34600 6 11.81 USGS 05465500 1971-02-28 38000 6 13.23 2 1971-02-22 14.29 1 USGS 05465500 1972-08-08 24500 6 9.37 USGS 05465500 1973-04-22 92000 6 28.63 6 USGS 05465500 1974-05-19 82200 6 28.12 USGS 05465500 1975-03-25 38700 6 21.78 USGS 05465500 1976-04-27 36600 6 21.41 USGS 05465500 1977-09-20 21100 6 18.23 USGS 05465500 1978-03-22 30300 6 20.14 USGS 05465500 1979-03-22 63700 6 25.30 USGS 05465500 1980-06-08 21300 6 18.17 USGS 05465500 1981-07-01 19900 6 18.15 USGS 05465500 1982-07-20 48900 6 23.61 USGS 05465500 1983-04-04 38900 6 22.48 USGS 05465500 1984-02-24 35300 6 21.78 2 1984-02-15 22.18 1 USGS 05465500 1985-02-25 44400 6 23.37 USGS 05465500 1986-05-19 56000 6 25.14 USGS 05465500 1986-10-27 24300 6 19.40 USGS 05465500 1988-01-21 12200 2,6 19.32 1 USGS 05465500 1989-09-10 11400 6 15.47 USGS 05465500 1990-06-19 86600 6 28.91 USGS 05465500 1991-05-26 49600 6 23.82 USGS 05465500 1992-04-28 31700 6 20.55 USGS 05465500 1993-07-08 111000 2,6 28.10 2 1993-07-07 29.53 USGS 05465500 1994-03-12 31100 6 19.67 2 1993-10-01 19.76 USGS 05465500 1995-04-29 36700 6 20.60 USGS 05465500 1996-05-12 74500 6 24.77 USGS 05465500 1997-02-23 73700 6 24.70 USGS 05465500 1998-07-01 49000 6 22.97 USGS 05465500 1999-07-29 61000 6 25.09 USGS 05465500 2000-07-19 34200 6 21.01 USGS 05465500 2001-04-20 42900 6 22.75 USGS 05465500 2002-06-07 28800 6 19.13 USGS 05465500 2003-05-19 28500 6 19.69 USGS 05465500 2004-05-31 65700 6 26.65 USGS 05465500 2005-07-06 29400 6 19.62 USGS 05465500 2006-04-10 11:45 22900 6 18.43 USGS 05465500 2007-04-28 35600 6 21.30 2 2007-03-25 21.38 USGS 05465500 2008-06-14 188000 6 32.15 USGS 05465500 2009-03-10 50800 2,6 23.29 2 2009-08-31 23.37 USGS 05465500 2010-03-19 52000 6 24.40 USGS 05465500 2011-06-16 34900 6 20.95 2 2011-02-19 21.17 1 USGS 05465500 2012-05-05 26500 6 18.66 USGS 05465500 2013-04-20 95800 6 28.15 USGS 05465500 2014-07-03 107000 6 30.18 USGS 05465500 2015-06-17 34500 6 20.76 USGS 05465500 2016-09-30 76700 6 27.20 USGS 05465500 2017-04-08 29100 6 19.89 USGS 05465500 2018-09-08 16:30 69300 6 25.81 USGS 05465500 2019-05-31 80800 6 27.21 USGS 05465500 2020-06-28 05:00 55900 6 24.03 USGS 05465500 2021-04-12 06:45 29000 6 19.23 USGS 05465500 2022-05-05 20:45 26400 6 18.81 USGS 05465500 2023-03-07 06:45 29700 6 19.50 USGS 05465500 2024-05-29 10:45 48100 6 22.90 5