# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-25 21:01:08 EST # # ---------------------------------- 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 02060500 ROANOKE RIVER AT ALTAVISTA, VA # # 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 02060500 1931-08-22 19500 18.76 3 USGS 02060500 1932-03-07 20800 19.36 3 USGS 02060500 1932-10-18 49000 29.30 3 USGS 02060500 1934-03-28 17800 18.54 3 USGS 02060500 1934-12-01 37600 26.01 3 USGS 02060500 1936-01-20 42200 27.66 3 USGS 02060500 1937-01-03 32400 24.03 3 USGS 02060500 1937-10-20 57000 31.27 3 USGS 02060500 1939-08-19 47300 29.60 3 USGS 02060500 1940-08-15 105000 40.08 3 USGS 02060500 1941-04-05 13000 15.47 3 USGS 02060500 1942-05-22 32700 24.31 3 USGS 02060500 1943-04-20 28800 22.78 3 USGS 02060500 1944-09-19 55900 31.10 3 USGS 02060500 1945-09-19 44100 28.30 3 USGS 02060500 1946-01-08 21300 20.00 3 USGS 02060500 1947-01-21 16400 17.50 3 USGS 02060500 1948-08-05 32100 24.53 3 USGS 02060500 1948-12-04 54600 30.84 3 USGS 02060500 1950-06-01 35800 25.80 3 USGS 02060500 1950-12-08 26000 22.14 3 USGS 02060500 1952-09-01 41200 27.46 USGS 02060500 1953-03-24 26300 22.15 USGS 02060500 1954-01-22 19300 19.04 USGS 02060500 1954-10-16 52000 31.23 USGS 02060500 1956-04-16 12000 14.93 USGS 02060500 1957-04-06 30100 23.96 USGS 02060500 1958-05-06 22000 20.34 USGS 02060500 1958-12-30 31800 24.71 USGS 02060500 1959-10-01 35600 26.15 USGS 02060500 1961-02-23 15200 16.81 USGS 02060500 1961-12-12 25300 21.78 USGS 02060500 1962-11-10 26100 6 22.20 USGS 02060500 1964-09-01 21500 6 20.11 USGS 02060500 1965-02-08 12700 6 15.30 USGS 02060500 1966-03-01 12800 6 15.39 USGS 02060500 1967-08-25 18400 6 18.55 USGS 02060500 1968-01-15 12000 6 14.90 USGS 02060500 1969-03-25 16400 6 17.52 USGS 02060500 1970-01-10 23400 6 20.97 USGS 02060500 1971-05-30 15900 6 17.22 USGS 02060500 1972-06-22 37300 6 26.78 USGS 02060500 1973-02-02 20400 6 19.40 USGS 02060500 1973-12-21 18300 6 18.29 USGS 02060500 1975-03-19 30100 6 24.02 USGS 02060500 1976-04-01 11700 6 14.37 USGS 02060500 1977-04-05 15800 6 16.97 USGS 02060500 1978-04-27 40100 6 27.68 USGS 02060500 1979-02-26 29600 6 23.76 USGS 02060500 1980-04-14 16100 6 17.10 USGS 02060500 1980-11-25 5150 6 8.00 USGS 02060500 1982-06-13 15100 6 16.02 USGS 02060500 1983-04-10 29200 6 23.60 USGS 02060500 1984-02-14 19300 6 18.81 USGS 02060500 1985-08-18 20600 6 19.51 USGS 02060500 1985-11-05 35700 6 27.38 USGS 02060500 1987-09-08 62100 6 34.45 USGS 02060500 1988-01-19 8310 6 11.17 USGS 02060500 1989-05-06 18600 6 18.87 USGS 02060500 1990-01-01 14900 6 15.88 USGS 02060500 1990-10-23 25900 6 23.44 USGS 02060500 1992-04-22 25600 6 23.25 USGS 02060500 1993-03-04 21600 6 20.81 USGS 02060500 1994-03-28 18600 6 18.89 USGS 02060500 1995-06-23 38700 6 28.42 USGS 02060500 1996-09-06 31600 6 25.87 USGS 02060500 1996-12-02 15000 6 15.94 USGS 02060500 1998-01-28 19300 6 19.32 USGS 02060500 1999-09-30 8630 6 10.60 USGS 02060500 2000-04-18 13700 6 14.77 USGS 02060500 2001-03-30 13100 6 14.22 USGS 02060500 2002-05-05 2340 6 5.20 USGS 02060500 2003-02-22 20300 6 20.03 USGS 02060500 2004-09-29 14400 6 15.37 USGS 02060500 2005-03-28 12400 6 13.59 USGS 02060500 2006-06-27 13800 6 14.20 USGS 02060500 2006-11-16 15300 6 15.39 USGS 02060500 2008-04-29 7020 6 8.84 USGS 02060500 2009-06-06 13400 6 13.88 USGS 02060500 2009-11-12 21900 6 20.52 USGS 02060500 2011-03-07 13200 6 13.64 USGS 02060500 2011-12-08 18200 6 17.66 USGS 02060500 2013-01-31 21100 6 19.26 USGS 02060500 2014-02-20 11100 6 11.94 USGS 02060500 2015-09-30 14800 6 14.72 USGS 02060500 2016-02-04 16200 6 15.95 USGS 02060500 2017-05-25 10:45 18600 6 17.53 USGS 02060500 2018-09-23 08:15 19500 6 16.60 USGS 02060500 2019-02-23 17:15 21300 6 17.76 USGS 02060500 2020-05-22 11:15 32400 6 23.59 USGS 02060500 2020-11-12 19:00 32000 6 23.41 USGS 02060500 2022-05-24 18:00 15300 6 13.27 USGS 02060500 2022-12-24 03:15 16300 6 13.97