# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-02-19 16:48:11 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 05453100 Iowa River at Marengo, 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 05453100 1947-06-16 34000 7 18.20 USGS 05453100 1957-06-22 7060 14.82 USGS 05453100 1958-09-04 11000 16.34 USGS 05453100 1959-03-24 15400 16.92 USGS 05453100 1960-03-31 30800 19.21 USGS 05453100 1961-03-08 11500 16.32 2 1961-02-18 16.80 USGS 05453100 1962-03-25 15000 16.83 USGS 05453100 1963-03-15 7700 2 15.10 1 USGS 05453100 1964-06-23 6040 14.08 USGS 05453100 1965-04-07 19900 17.84 USGS 05453100 1966-06-17 11600 16.48 2 1966-03-02 16.75 USGS 05453100 1967-06-10 7720 14.62 USGS 05453100 1968-08-05 3730 11.41 USGS 05453100 1969-07-12 28300 19.79 USGS 05453100 1970-05-17 10700 16.23 2 1970-03-02 16.87 1 USGS 05453100 1971-02-20 14000 18.15 2 1971-02-27 18.27 1 USGS 05453100 1972-06-18 12600 17.49 USGS 05453100 1973-04-16 16600 17.73 USGS 05453100 1974-05-19 21200 18.82 USGS 05453100 1975-03-24 22200 18.82 USGS 05453100 1976-04-24 17700 17.91 USGS 05453100 1977-09-19 15100 17.39 USGS 05453100 1978-07-21 13000 2 17.99 USGS 05453100 1979-03-19 22300 19.40 USGS 05453100 1980-03-16 7200 2 1980-03-13 18.74 1 USGS 05453100 1981-06-24 5030 12.91 USGS 05453100 1982-06-16 21100 18.12 USGS 05453100 1983-07-03 21600 18.19 USGS 05453100 1984-06-18 17200 18.17 USGS 05453100 1985-03-04 16200 2 17.50 1,2 1985-02-21 17.62 1 USGS 05453100 1986-05-18 13100 16.59 USGS 05453100 1987-08-26 7500 15.15 USGS 05453100 1988-01-31 4500 2 13.73 1 USGS 05453100 1989-03-11 3310 10.67 2 1989-03-11 1200 14.97 1 USGS 05453100 1990-06-21 18100 18.68 USGS 05453100 1991-06-08 16300 18.25 USGS 05453100 1992-07-26 12400 16.90 USGS 05453100 1993-07-19 38000 20.31 USGS 05453100 1994-03-07 8350 15.36 USGS 05453100 1995-04-28 9210 15.86 USGS 05453100 1996-05-10 10900 16.35 USGS 05453100 1997-02-21 10200 2 17.56 1 USGS 05453100 1998-06-30 19500 18.92 USGS 05453100 1999-06-17 11600 17.09 USGS 05453100 2000-07-14 6290 14.58 USGS 05453100 2001-03-23 9540 16.46 USGS 05453100 2002-06-13 5180 13.35 USGS 05453100 2003-05-15 8880 15.83 USGS 05453100 2004-05-31 14600 17.97 USGS 05453100 2005-05-20 8130 15.55 USGS 05453100 2006-05-04 08:30 4580 12.58 USGS 05453100 2007-04-30 15900 18.17 USGS 05453100 2008-06-12 51000 21.38 USGS 05453100 2009-04-30 15500 17.64 USGS 05453100 2010-07-06 16200 17.78 USGS 05453100 2011-06-11 9950 16.27 USGS 05453100 2012-04-16 3430 10.65 USGS 05453100 2013-05-31 37200 20.36 USGS 05453100 2014-07-02 26800 19.96 USGS 05453100 2015-06-25 13000 17.09 USGS 05453100 2015-12-18 19000 18.31 USGS 05453100 2016-10-04 12300 16.90 2 2017-01-20 0100 17.95 USGS 05453100 2018-09-06 07:30 20800 19.14 USGS 05453100 2019-03-17 13:15 18400 18.83 USGS 05453100 2020-06-25 12:30 15000 17.93 USGS 05453100 2021-03-09 05:00 5040 12.87 USGS 05453100 2022-05-11 04:00 5030 12.68 USGS 05453100 2023-03-02 07:15 6220 13.16 USGS 05453100 2024-05-26 14:00 16300 18.11