# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-23 09:44:32 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 13290450 SNAKE RIVER AT HELLS CANYON DAM ID-OR STATE LINE # # 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 13290450 1966-08-19 25000 6 70.22 USGS 13290450 1967-06-23 37200 6 73.36 USGS 13290450 1968-04-14 35800 6 73.08 USGS 13290450 1969-04-10 55600 6 77.16 USGS 13290450 1970-01-29 50600 6 76.24 USGS 13290450 1971-04-15 75800 6 81.55 USGS 13290450 1972-03-21 74700 6 81.33 USGS 13290450 1973-01-07 31600 6 72.14 USGS 13290450 1974-04-21 63300 6 79.79 USGS 13290450 1975-04-30 63200 6 78.53 USGS 13290450 1976-04-23 59200 6 78.86 USGS 13290450 1976-12-14 29600 6 71.81 USGS 13290450 1978-05-06 44900 6 75.71 USGS 13290450 1979-03-19 38600 6 74.48 USGS 13290450 1980-06-12 48600 6 76.33 USGS 13290450 1981-06-09 44100 6 75.57 USGS 13290450 1982-02-23 87800 6 84.05 USGS 13290450 1983-03-20 66200 6 80.23 USGS 13290450 1984-05-08 78400 6 82.23 USGS 13290450 1985-04-10 48400 6 76.53 USGS 13290450 1986-02-28 78600 6 82.26 USGS 13290450 1987-02-14 30200 6 72.32 USGS 13290450 1988-05-06 29800 6 72.10 USGS 13290450 1989-04-29 41900 6 75.09 USGS 13290450 1990-05-09 29600 6 72.03 USGS 13290450 1990-12-20 29700 6 72.04 USGS 13290450 1991-10-02 22200 6 69.83 USGS 13290450 1993-04-05 55400 6 77.98 USGS 13290450 1993-10-04 30900 6 72.24 USGS 13290450 1995-06-13 48800 6 76.51 USGS 13290450 1996-04-24 73400 6 81.34 USGS 13290450 1997-01-02 103000 6 86.17 USGS 13290450 1998-05-29 94500 6 84.90 USGS 13290450 1999-03-27 67800 6 80.32 USGS 13290450 2000-05-16 37500 6 73.92 USGS 13290450 2001-01-17 29400 6 71.84 USGS 13290450 2002-04-19 29200 6 71.76 USGS 13290450 2003-05-31 45600 6 75.81 USGS 13290450 2004-09-15 30800 6 72.20 USGS 13290450 2005-05-20 41600 1,6 USGS 13290450 2006-04-18 80800 1,6 USGS 13290450 2006-12-29 23900 1,6 USGS 13290450 2008-06-06 28500 1,6 USGS 13290450 2009-06-08 41100 1,6 USGS 13290450 2010-06-07 54000 1,6 USGS 13290450 2011-05-23 68900 1,6 USGS 13290450 2012-04-04 46500 1,6 USGS 13290450 2013-02-06 17700 1,6 USGS 13290450 2014-03-08 28800 1,6 USGS 13290450 2015-02-13 23900 1,6 USGS 13290450 2016-04-18 28500 1,6 USGS 13290450 2017-03-31 72500 1,6 USGS 13290450 2018-04-13 42600 1,6 USGS 13290450 2019-06-03 49800 1,6 USGS 13290450 2020-06-12 25000 1,6 USGS 13290450 2020-12-23 17200 1,6 USGS 13290450 2022-06-14 29200 1,6 USGS 13290450 2023-05-23 33800 1,6