# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-29 18:44:04 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 02077500 HYCO RIVER NEAR DENNISTON, 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 02077500 1928-08-00 26.40 Bd USGS 02077500 1929-10-03 7630 21.88 USGS 02077500 1931-04-07 4160 17.18 USGS 02077500 1932-03-08 5280 18.58 USGS 02077500 1932-12-28 4400 17.52 USGS 02077500 1945-09-00 25.60 Bd USGS 02077500 1951-04-11 2500 16.22 USGS 02077500 1952-03-06 2540 17.96 USGS 02077500 1952-11-21 2080 16.32 USGS 02077500 1954-06-17 2650 18.25 USGS 02077500 1955-08-18 3300 20.57 USGS 02077500 1955-10-03 2480 17.84 USGS 02077500 1957-02-03 5880 1 19.39 USGS 02077500 1958-01-16 3800 1 17.18 USGS 02077500 1958-12-30 5360 1 18.92 USGS 02077500 1960-02-20 4480 17.61 USGS 02077500 1961-02-26 2660 15.67 USGS 02077500 1962-01-08 6020 19.59 USGS 02077500 1963-03-08 5440 18.82 USGS 02077500 1964-02-07 1520 13.91 USGS 02077500 1965-02-08 1830 6 14.74 USGS 02077500 1966-03-02 3400 6 16.43 USGS 02077500 1967-02-21 1430 6 13.53 USGS 02077500 1968-03-14 3840 6 16.84 USGS 02077500 1969-03-08 2870 6 15.89 USGS 02077500 1970-02-19 2190 6 15.23 USGS 02077500 1971-02-09 3980 6 16.98 USGS 02077500 1971-10-25 4830 6 18.04 USGS 02077500 1972-12-17 4620 6 17.77 USGS 02077500 1974-09-08 9170 6 22.62 USGS 02077500 1975-07-15 10800 6 24.27 USGS 02077500 1976-01-01 1860 6 14.77 USGS 02077500 1977-03-07 931 6 11.34 USGS 02077500 1978-04-27 9340 6 22.82 USGS 02077500 1979-02-26 9490 6 22.97 USGS 02077500 1979-11-13 2840 6 16.20 USGS 02077500 1981-02-11 626 6 9.93 USGS 02077500 1982-02-05 3100 6 16.55 USGS 02077500 1983-04-17 4060 6 17.72 USGS 02077500 1984-07-30 4360 6 18.09 USGS 02077500 1985-01-06 2420 6 15.54 USGS 02077500 1985-11-24 2790 6 16.11 USGS 02077500 1987-03-02 7960 6 21.86 USGS 02077500 1988-01-21 1380 6 12.49 USGS 02077500 1989-02-23 4110 6 17.77 USGS 02077500 1989-10-04 2240 6 15.18 USGS 02077500 1991-03-31 5090 6 18.94 USGS 02077500 1992-01-05 3480 6 17.02 USGS 02077500 1993-03-05 6810 6 20.75 USGS 02077500 1994-03-04 5090 6 18.94 USGS 02077500 1995-08-29 6330 6 20.25 USGS 02077500 1996-09-07 9430 6 23.16 USGS 02077500 1997-04-30 5490 6 18.32 USGS 02077500 1998-03-21 8850 6 20.66 USGS 02077500 1999-09-17 5530 6 18.31 USGS 02077500 2000-06-17 3270 6 16.09 USGS 02077500 2001-03-31 3660 6 16.53 USGS 02077500 2002-09-01 523 6 9.02 USGS 02077500 2003-03-21 7230 6 20.42 USGS 02077500 2004-08-31 3440 6 16.50 USGS 02077500 2004-12-12 4060 6 17.28 USGS 02077500 2006-07-06 1730 6 12.84 USGS 02077500 2006-11-24 4430 6 17.72 USGS 02077500 2008-09-07 3910 6 17.10 USGS 02077500 2009-06-07 4760 6 18.08 USGS 02077500 2009-11-14 4790 6 18.44 USGS 02077500 2010-10-28 1660 6 12.86 USGS 02077500 2012-03-26 1540 6 12.50 USGS 02077500 2013-01-20 2630 6 15.53