# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-08 03:55:36 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 06483500 Rock River near Rock Valley, 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 06483500 1897-00-00 17.00 Bm USGS 06483500 1948-07-23 4090 10.90 USGS 06483500 1949-03-06 5790 12.30 USGS 06483500 1950-03-25 4560 11.48 2 1950-03-05 11.60 1 USGS 06483500 1951-04-05 14300 14.77 USGS 06483500 1952-03-31 17300 15.30 USGS 06483500 1953-06-08 18900 15.99 USGS 06483500 1954-06-21 19200 15.86 USGS 06483500 1955-03-12 2370 9.31 USGS 06483500 1956-07-02 1160 7.59 USGS 06483500 1957-06-19 3770 10.55 USGS 06483500 1958-04-07 545 6.18 USGS 06483500 1959-06-01 10200 14.06 USGS 06483500 1960-03-31 16700 15.38 USGS 06483500 1961-03-02 8580 13.06 USGS 06483500 1962-03-30 28400 16.91 USGS 06483500 1963-06-12 1300 7.56 USGS 06483500 1964-09-08 1390 7.70 USGS 06483500 1965-04-07 15700 14.94 USGS 06483500 1966-02-10 11700 14.78 USGS 06483500 1967-03-04 3260 10.06 USGS 06483500 1968-07-20 182 4.16 USGS 06483500 1969-04-07 40400 17.32 USGS 06483500 1970-05-28 10200 14.05 USGS 06483500 1971-02-19 9060 13.73 USGS 06483500 1972-03-13 5890 12.04 USGS 06483500 1973-03-04 10700 14.20 USGS 06483500 1974-02-21 988 6.65 2 1974-02-19 7.02 1 USGS 06483500 1975-04-30 2370 8.71 USGS 06483500 1976-03-15 2250 8.64 2 1976-02-15 9.74 1 USGS 06483500 1977-03-13 2980 2 1977-03-11 10.96 1 USGS 06483500 1978-03-21 7990 15.32 USGS 06483500 1979-03-23 19300 18.91 USGS 06483500 1979-11-02 8820 15.67 USGS 06483500 1981-06-16 3200 11.20 USGS 06483500 1982-02-24 7070 14.61 USGS 06483500 1983-06-20 19000 18.85 USGS 06483500 1984-06-18 16300 18.06 USGS 06483500 1985-04-24 12500 16.07 USGS 06483500 1986-03-19 11500 16.88 USGS 06483500 1987-03-25 4990 13.59 USGS 06483500 1988-03-12 1810 8.62 USGS 06483500 1989-03-12 3340 11.39 USGS 06483500 1990-06-28 3360 11.43 USGS 06483500 1991-06-06 1390 7.72 USGS 06483500 1992-07-13 5470 13.12 USGS 06483500 1993-05-09 29300 19.97 USGS 06483500 1994-06-14 23100 18.27 USGS 06483500 1995-05-29 6740 12.27 USGS 06483500 1996-06-22 6980 12.41 USGS 06483500 1997-03-29 14600 15.17 USGS 06483500 1998-03-29 2580 8.71 USGS 06483500 1999-04-10 5000 10.10 USGS 06483500 2000-05-20 2900 8.31 USGS 06483500 2001-04-24 21600 17.74 USGS 06483500 2002-08-24 1250 6.06 USGS 06483500 2003-05-13 1230 6.24 USGS 06483500 2004-03-02 8380 12.24 USGS 06483500 2005-09-27 4460 9.68 USGS 06483500 2006-04-09 05:15 17900 16.44 USGS 06483500 2007-03-15 15600 17.96 USGS 06483500 2008-06-06 13100 14.54 USGS 06483500 2009-02-11 4910 2 12.06 1,2 2009-02-10 12.33 1 USGS 06483500 2010-09-25 24200 19.85 2 2010-09-25 1300 19.89 USGS 06483500 2011-03-18 7440 13.76 USGS 06483500 2012-05-29 7380 13.89 USGS 06483500 2013-05-26 5590 12.01 USGS 06483500 2014-06-17 60600 22.72 USGS 06483500 2015-08-21 2220 8.83 USGS 06483500 2016-05-02 5030 11.44 2 2016-09-17 11.83 USGS 06483500 2017-05-22 3560 10.05 2 2017-02-13 0130 10.36 USGS 06483500 2018-06-22 05:30 34800 21.20 USGS 06483500 2019-03-15 04:15 37800 20.61 USGS 06483500 2019-10-07 02:45 4300 10.75 2 2020-07-08 0300 11.62 USGS 06483500 2021-04-10 15:15 815 6.72 2 2021-04-10 1515 6.41 USGS 06483500 2022-06-01 05:30 2500 9.56 USGS 06483500 2023-04-13 14:00 4570 11.25 2,5 2023-04-03 1645 11.91