# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-07 01:26:17 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 05453520 Iowa River below Coralville Dam nr Coralville, 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 05453520 1993-07-19 25800 6 63.95 USGS 05453520 1994-03-10 8890 6 55.76 USGS 05453520 1995-04-30 8760 6 55.66 USGS 05453520 1996-05-16 6180 6 53.71 USGS 05453520 1997-02-28 9150 6 55.96 USGS 05453520 1998-04-09 9460 6 56.22 USGS 05453520 1999-06-28 6770 6 54.66 USGS 05453520 2000-07-12 6410 6 54.25 USGS 05453520 2001-03-19 10100 6 56.57 USGS 05453520 2002-08-24 4700 6 52.45 USGS 05453520 2003-05-15 6360 6 53.64 USGS 05453520 2004-03-07 6650 6 54.50 USGS 05453520 2005-05-20 6350 6 54.58 USGS 05453520 2006-04-08 06:00 4920 6 52.81 USGS 05453520 2007-03-23 9410 6 55.89 USGS 05453520 2008-06-15 39900 6 68.09 USGS 05453520 2009-03-15 10300 6 56.29 USGS 05453520 2010-03-18 10300 6 56.27 2 2010-07-12 56.29 USGS 05453520 2011-02-21 8160 6 55.15 USGS 05453520 2012-05-07 3500 6 51.82 USGS 05453520 2013-06-04 19400 6 60.51 USGS 05453520 2014-07-05 18500 6 60.09 USGS 05453520 2015-03-14 8220 6 54.69 USGS 05453520 2015-12-22 10600 6 56.11 2 2015-12-23 56.14 USGS 05453520 2017-01-25 7630 54.47 USGS 05453520 2018-09-19 21:00 10500 56.04 USGS 05453520 2018-10-16 13:00 12700 57.23 USGS 05453520 2020-07-02 07:30 10400 55.87 USGS 05453520 2021-03-10 16:30 6980 2 53.90 USGS 05453520 2022-05-06 17:30 5640 53.09 USGS 05453520 2023-03-04 17:45 5930 53.33