# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-24 03:12:48 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 09402500 COLORADO RIVER NEAR GRAND CANYON, AZ # # 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 09402500 1884-07-08 300000 2,7 USGS 09402500 1921-06-19 220000 37.50 USGS 09402500 1922-06-01 115000 2 USGS 09402500 1923-09-19 112000 28.50 USGS 09402500 1924-06-18 74000 22.40 USGS 09402500 1925-06-03 53700 18.75 USGS 09402500 1926-05-29 85600 24.27 USGS 09402500 1927-07-02 127000 29.25 USGS 09402500 1928-06-03 115000 27.85 USGS 09402500 1929-05-29 111000 27.50 USGS 09402500 1930-06-04 71000 21.60 USGS 09402500 1931-05-22 34600 14.36 USGS 09402500 1932-05-26 102000 26.10 USGS 09402500 1933-06-05 81500 23.41 USGS 09402500 1934-05-17 25500 12.32 USGS 09402500 1935-06-19 105000 26.82 USGS 09402500 1936-05-24 76300 22.64 USGS 09402500 1937-05-21 85300 23.90 USGS 09402500 1938-06-08 100000 26.38 USGS 09402500 1939-05-26 49000 18.07 USGS 09402500 1940-05-18 46800 17.66 USGS 09402500 1941-05-17 120000 28.86 USGS 09402500 1942-05-31 91800 25.18 USGS 09402500 1943-06-06 66800 21.39 USGS 09402500 1944-05-20 93400 25.10 USGS 09402500 1945-05-17 63300 21.40 USGS 09402500 1946-06-14 50100 18.65 USGS 09402500 1947-05-14 80100 23.10 USGS 09402500 1948-05-26 89800 24.90 USGS 09402500 1949-06-22 112000 27.95 USGS 09402500 1950-06-06 58400 20.55 USGS 09402500 1951-06-01 63700 21.00 USGS 09402500 1952-06-12 122000 29.05 USGS 09402500 1953-06-17 68500 21.80 USGS 09402500 1954-05-27 32800 15.05 USGS 09402500 1955-06-14 40400 16.90 USGS 09402500 1956-06-06 67200 21.60 USGS 09402500 1957-06-13 125000 29.10 USGS 09402500 1958-06-02 108000 26.97 USGS 09402500 1959-06-19 38300 16.11 USGS 09402500 1960-06-10 46300 17.95 USGS 09402500 1961-06-06 39800 16.38 USGS 09402500 1962-05-17 85600 23.80 USGS 09402500 1962-10-22 20700 6 11.26 USGS 09402500 1964-04-29 19700 6 10.81 USGS 09402500 1965-06-15 58400 6 19.98 USGS 09402500 1966-05-04 21300 6 11.33 USGS 09402500 1967-09-09 23900 6 16.17 USGS 09402500 1968-07-20 26800 6 16.60 USGS 09402500 1969-09-12 30800 6 17.60 USGS 09402500 1970-08-27 27600 6 16.33 USGS 09402500 1971-08-24 33400 6 18.05 USGS 09402500 1972-05-26 29500 6 16.95 USGS 09402500 1973-04-19 38300 6 18.47 USGS 09402500 1974-08-21 28200 6 15.56 USGS 09402500 1975-07-30 28900 6 15.72 USGS 09402500 1976-05-20 27700 6 15.40 USGS 09402500 1977-08-19 32100 6 16.53 USGS 09402500 1978-09-09 29400 6 15.87 USGS 09402500 1978-12-23 38600 6 18.14 USGS 09402500 1980-06-24 45000 6 19.60 USGS 09402500 1981-07-30 25400 6 14.71 USGS 09402500 1982-08-28 27900 6 15.15 USGS 09402500 1983-06-29 96200 6 26.26 USGS 09402500 1984-08-13 47600 6 18.31 USGS 09402500 1985-06-02 47400 6 18.25 USGS 09402500 1986-05-31 53500 6 19.15 USGS 09402500 1987-01-31 31600 6 14.67 USGS 09402500 1988-07-29 25500 6 13.16 USGS 09402500 1989-08-19 31300 6 14.81 USGS 09402500 1990-08-01 28200 6 13.77 USGS 09402500 1991-06-18 29000 6 13.89 USGS 09402500 1992-07-24 19900 6 11.18 USGS 09402500 1993-01-13 34100 6 15.44 USGS 09402500 1994-08-18 22000 6 12.03 USGS 09402500 1995-09-09 25400 6 14.03 USGS 09402500 1996-03-31 47900 6 18.98 USGS 09402500 1997-09-16 31500 6 14.87 USGS 09402500 1997-11-06 31900 6 15.39 USGS 09402500 1999-08-31 25900 6 14.29 USGS 09402500 2000-09-07 32800 6 15.85 USGS 09402500 2001-03-20 19400 6 11.72 USGS 09402500 2002-09-11 13:30 21400 6 12.37 USGS 09402500 2003-03-20 11:45 21000 6 12.10 USGS 09402500 2004-07-15 16:00 21300 6 12.19 USGS 09402500 2004-11-23 01:15 43400 6 18.22 USGS 09402500 2006-08-05 11:15 20200 6 11.94 USGS 09402500 2006-10-06 15:45 20400 6 12.00 USGS 09402500 2008-03-07 17:00 45300 6 18.42 USGS 09402500 2009-07-21 11:15 17700 6 10.68 USGS 09402500 2010-08-07 21400 6 12.14 USGS 09402500 2011-07-09 26700 6 13.78 USGS 09402500 2011-11-21 21500 6 12.30 USGS 09402500 2012-11-20 46700 6 18.69 USGS 09402500 2013-11-15 17:15 38100 6 16.90 USGS 09402500 2014-11-12 06:30 38900 6 17.08 USGS 09402500 2016-08-06 08:00 20400 6 11.91 USGS 09402500 2016-11-08 17:45 38400 6 17.20 USGS 09402500 2018-08-21 13:52 20700 6 12.00 USGS 09402500 2018-11-07 11:45 40300 6 17.76