# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-20 00:39:58 EDT # # ---------------------------------- 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 06485500 BIG SIOUX RIVER AT AKRON,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 06485500 1929-03-15 20800 18.63 USGS 06485500 1930-06-06 3740 9.92 USGS 06485500 1931-08-09 1390 5.60 USGS 06485500 1932-03-01 16900 18.04 USGS 06485500 1933-09-05 14200 17.80 USGS 06485500 1934-06-08 10600 16.08 USGS 06485500 1935-03-10 3000 10.06 2 1935-03-07 12.24 1 USGS 06485500 1936-03-12 18000 18.63 USGS 06485500 1937-05-26 5760 13.14 USGS 06485500 1938-07-04 12700 17.53 USGS 06485500 1939-03-17 6300 15.45 1 USGS 06485500 1940-04-02 11700 17.32 USGS 06485500 1941-03-25 5820 13.52 USGS 06485500 1942-06-04 21400 19.23 USGS 06485500 1943-06-18 12000 17.35 USGS 06485500 1944-02-29 15900 18.24 USGS 06485500 1945-03-14 12300 17.42 USGS 06485500 1946-03-05 8970 15.28 USGS 06485500 1947-06-15 10500 16.84 USGS 06485500 1948-03-21 10800 16.87 2 1948-03-02 18.50 1 USGS 06485500 1949-04-09 11400 17.11 USGS 06485500 1950-06-18 5450 13.40 USGS 06485500 1951-04-06 28800 19.66 USGS 06485500 1952-04-01 33000 19.75 USGS 06485500 1953-06-08 21800 19.33 USGS 06485500 1954-06-22 21700 19.95 USGS 06485500 1955-03-11 4940 12.25 USGS 06485500 1956-07-17 1840 8.13 USGS 06485500 1957-06-21 19400 19.57 USGS 06485500 1958-04-08 1120 5.98 USGS 06485500 1959-06-03 8430 16.93 USGS 06485500 1960-04-01 49500 21.56 USGS 06485500 1961-03-05 9050 16.18 USGS 06485500 1962-03-31 54300 22.08 USGS 06485500 1963-08-07 1650 7.59 USGS 06485500 1964-04-04 2540 9.30 USGS 06485500 1965-04-08 21000 20.85 USGS 06485500 1966-02-12 16500 19.85 1 USGS 06485500 1967-03-05 5300 14.79 1 USGS 06485500 1968-06-27 635 4.80 USGS 06485500 1969-04-09 80800 22.99 1881 USGS 06485500 1970-05-30 8580 16.30 USGS 06485500 1971-06-11 7310 15.69 2 1971-02-22 17.16 1 USGS 06485500 1972-06-08 10500 17.02 USGS 06485500 1973-03-05 12500 18.74 1 USGS 06485500 1974-06-22 3000 9.76 USGS 06485500 1975-05-01 2920 9.76 USGS 06485500 1976-03-15 3250 10.31 2 1976-02-18 12.26 1 USGS 06485500 1977-03-15 5270 13.60 USGS 06485500 1978-03-22 18200 19.88 USGS 06485500 1979-03-25 30500 21.74 1 USGS 06485500 1979-11-04 8730 17.10 USGS 06485500 1981-06-17 3180 10.75 USGS 06485500 1982-02-25 6500 16.45 1 USGS 06485500 1983-06-22 34500 21.49 USGS 06485500 1984-06-23 52200 22.27 USGS 06485500 1985-04-26 21000 20.29 USGS 06485500 1986-09-25 23100 21.98 USGS 06485500 1987-03-27 12200 18.50 USGS 06485500 1988-03-12 3110 10.82 2 1988-03-16 11.82 1 USGS 06485500 1989-03-12 4100 2 15.36 1 USGS 06485500 1990-06-17 5550 14.45 USGS 06485500 1991-06-15 2270 9.26 USGS 06485500 1992-07-06 9710 18.00 USGS 06485500 1993-05-10 66700 23.05 USGS 06485500 1994-06-16 20400 21.08 USGS 06485500 1995-04-22 22200 20.88 USGS 06485500 1996-06-23 11000 17.79 USGS 06485500 1997-04-09 31300 22.63 USGS 06485500 1998-04-10 7170 15.93 USGS 06485500 1999-04-13 10400 17.90 USGS 06485500 2000-05-21 5280 13.85 USGS 06485500 2001-04-26 40400 23.38 USGS 06485500 2002-04-02 3660 11.65 USGS 06485500 2003-07-09 3400 11.02 USGS 06485500 2004-06-02 11000 17.87 USGS 06485500 2005-06-06 7640 16.20 USGS 06485500 2006-04-10 27800 22.32 USGS 06485500 2007-03-16 24700 21.76 USGS 06485500 2008-06-08 17300 20.22 USGS 06485500 2009-03-26 4840 12.99 2 2009-02-13 16.31 1 USGS 06485500 2010-09-27 38300 22.88 USGS 06485500 2011-03-26 19700 20.39 USGS 06485500 2012-05-11 12100 18.30 USGS 06485500 2013-05-28 19300 20.54 USGS 06485500 2014-06-18 108000 25.46 USGS 06485500 2015-07-09 5430 13.71 USGS 06485500 2016-05-03 11300 18.20 USGS 06485500 2017-05-23 7940 16.11 USGS 06485500 2018-06-23 17:45 44800 23.45 USGS 06485500 2019-03-16 01:15 61900 23.94 USGS 06485500 2020-03-31 16:00 12700 17.67 USGS 06485500 2021-08-30 23:15 4100 11.45 USGS 06485500 2022-06-01 18:30 6620 14.03 USGS 06485500 2023-04-14 14:45 12300 17.97