# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-19 08:56:51 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 06479438 BIG SIOUX RIVER NEAR WATERTOWN,SD # # 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 06479438 1973-03-15 595 8.11 USGS 06479438 1974-04-04 232 6.75 2 1974-03-04 7.88 1 USGS 06479438 1975-04-17 301 7.75 USGS 06479438 1976-03-24 288 7.07 2 1976-03-20 8.40 1 USGS 06479438 1977-06-16 938 8.77 2 1977-03-13 9.52 1 USGS 06479438 1978-03-30 3720 11.07 USGS 06479438 1979-04-13 1780 9.82 1 USGS 06479438 1980-03-19 330 8.04 USGS 06479438 1981-06-15 88.0 5.50 USGS 06479438 1982-03-30 250 8.97 1 USGS 06479438 1983-04-02 396 7.52 USGS 06479438 1984-06-16 1330 9.25 2 1984-03-25 9.52 1 USGS 06479438 1985-03-17 1700 9.62 1 USGS 06479438 1986-03-30 4970 11.08 USGS 06479438 1987-03-25 601 8.01 USGS 06479438 1988-03-25 110 2 6.26 1,2 1988-03-02 7.08 1 USGS 06479438 1989-03-27 900 2 8.98 1,2 1989-03-24 9.09 1 USGS 06479438 1990-06-18 28.0 4.56 2 1990-02-06 4.61 1 USGS 06479438 1991-06-21 3300 11.13 1 USGS 06479438 1992-07-02 736 8.07 USGS 06479438 1993-03-28 4000 2 11.07 1 USGS 06479438 1994-03-20 2110 9.86 USGS 06479438 1995-03-12 2000 9.81 1 USGS 06479438 1996-03-14 2500 10.67 1 USGS 06479438 1997-04-05 7820 12.09 USGS 06479438 1998-05-17 1140 8.87 2 1998-02-26 9.19 1 USGS 06479438 1998-10-17 946 8.60 USGS 06479438 2000-04-22 31.0 4.25 2 2000-03-01 4.28 1 USGS 06479438 2001-04-07 8000 12.33 1 USGS 06479438 2002-03-29 800 8.97 1 USGS 06479438 2003-03-17 250 8.27 1 USGS 06479438 2004-06-02 75.0 4.74 2 2004-02-24 4.82 1 USGS 06479438 2005-06-14 565 7.84 USGS 06479438 2006-03-31 554 7.76 USGS 06479438 2007-03-22 1950 9.82 1 USGS 06479438 2008-06-13 809 8.60 USGS 06479438 2009-03-23 2400 10.08 2 2009-03-17 10.10 1 USGS 06479438 2010-03-16 2310 10.55 1,2 2010-03-15 10.66 1 USGS 06479438 2011-04-04 2380 10.23 2 2011-07-23 10.31 1 USGS 06479438 2012-03-13 267 6.39 1 USGS 06479438 2013-04-28 1050 8.89 USGS 06479438 2014-06-19 1950 9.82 USGS 06479438 2015-03-11 300 7.85 1,2 2015-03-10 7.88 1 USGS 06479438 2016-04-27 89.0 4.82 2 2016-02-23 5.31 1 USGS 06479438 2017-09-25 378 7.88 1,2 2017-02-19 8.33 1 USGS 06479438 2018-04-22 07:00 2090 2 9.92 1 USGS 06479438 2019-03-28 04:30 3390 2 11.21 1 USGS 06479438 2019-10-23 02:30 969 9.08 USGS 06479438 2021-04-10 402 7.12 USGS 06479438 2022-05-31 07:00 2080 10.11 USGS 06479438 2023-04-13 08:15 6450 11.85