# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-21 17:26:21 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 02056000 ROANOKE RIVER AT NIAGARA, 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 02056000 1926-12-26 10800 12.23 USGS 02056000 1928-08-16 24000 17.36 USGS 02056000 1929-02-28 7300 10.51 USGS 02056000 1929-10-02 15200 14.29 USGS 02056000 1931-08-23 5000 USGS 02056000 1932-03-06 4150 7.99 USGS 02056000 1932-10-17 18000 15.36 USGS 02056000 1934-03-28 8950 11.48 USGS 02056000 1935-01-23 15000 14.20 USGS 02056000 1936-03-17 16400 14.78 USGS 02056000 1937-01-20 8950 11.54 USGS 02056000 1937-10-19 13400 13.58 USGS 02056000 1939-08-19 13000 USGS 02056000 1940-08-14 24400 17.50 USGS 02056000 1941-07-08 6290 9.71 USGS 02056000 1942-05-22 8380 11.25 USGS 02056000 1943-04-19 9170 11.57 USGS 02056000 1944-09-18 12600 13.24 USGS 02056000 1945-09-18 17200 15.10 USGS 02056000 1946-02-10 6570 10.10 USGS 02056000 1947-01-20 7380 10.73 USGS 02056000 1948-08-04 14500 14.00 USGS 02056000 1948-12-04 20800 16.30 USGS 02056000 1950-05-31 10500 12.20 USGS 02056000 1950-12-07 13200 13.50 USGS 02056000 1952-09-01 13200 13.10 USGS 02056000 1953-03-24 11100 12.42 USGS 02056000 1954-03-01 6830 10.27 USGS 02056000 1954-10-15 13500 13.60 USGS 02056000 1956-04-16 5580 9.30 USGS 02056000 1957-01-29 10800 12.33 USGS 02056000 1958-05-06 7490 10.68 USGS 02056000 1958-12-29 8180 11.08 USGS 02056000 1959-10-01 17200 15.10 USGS 02056000 1961-08-26 5140 9.11 USGS 02056000 1961-12-18 8540 11.30 USGS 02056000 1962-11-10 10500 12.22 USGS 02056000 1964-04-14 4400 8.54 USGS 02056000 1965-03-26 7040 10.44 USGS 02056000 1966-02-13 7680 10.82 USGS 02056000 1967-03-07 13600 13.64 USGS 02056000 1968-03-13 4440 8.53 USGS 02056000 1968-10-19 13800 13.72 USGS 02056000 1969-12-31 6250 9.89 USGS 02056000 1971-05-30 6500 10.06 USGS 02056000 1972-06-21 28800 18.98 USGS 02056000 1973-05-28 17700 15.27 USGS 02056000 1974-04-04 5880 9.63 USGS 02056000 1975-03-14 18700 15.59 USGS 02056000 1976-05-29 5520 9.37 USGS 02056000 1977-04-05 14800 14.12 USGS 02056000 1978-04-27 29300 19.12 USGS 02056000 1979-09-22 15800 14.51 USGS 02056000 1980-04-14 15900 14.55 USGS 02056000 1981-09-04 4150 8.28 USGS 02056000 1982-02-03 8340 11.17 USGS 02056000 1983-04-10 18700 15.60 USGS 02056000 1984-02-14 9410 11.75 USGS 02056000 1985-08-18 16500 14.82 USGS 02056000 1985-11-04 52300 25.30 USGS 02056000 1987-04-16 20600 16.29 USGS 02056000 1987-11-29 2010 6.09 USGS 02056000 1989-09-23 14800 14.20 USGS 02056000 1989-10-02 8710 11.37 USGS 02056000 1991-01-11 10500 12.31 USGS 02056000 1992-04-21 25500 17.95 USGS 02056000 1993-03-04 17800 15.32 USGS 02056000 1993-12-05 11300 12.69 USGS 02056000 1995-01-15 16100 14.70 USGS 02056000 1996-01-19 19000 15.73 USGS 02056000 1996-12-01 11000 12.53 USGS 02056000 1998-02-04 20000 16.06 USGS 02056000 1999-09-06 5090 9.04 USGS 02056000 2000-04-18 11800 12.92 USGS 02056000 2001-03-30 5220 9.14 USGS 02056000 2002-05-03 5860 9.61 USGS 02056000 2003-02-22 21800 16.71 USGS 02056000 2004-09-28 27600 18.62 USGS 02056000 2005-03-28 9010 11.53 USGS 02056000 2006-06-27 18900 15.69 USGS 02056000 2006-11-16 7400 10.62 USGS 02056000 2008-04-28 4540 8.61 USGS 02056000 2009-06-05 3720 7.91 USGS 02056000 2009-11-12 14500 14.06 USGS 02056000 2011-04-16 8420 11.21 USGS 02056000 2011-11-29 8600 11.31 USGS 02056000 2013-07-04 22000 16.77 USGS 02056000 2014-02-21 5490 9.34 USGS 02056000 2015-09-30 18800 15.67 USGS 02056000 2015-11-19 9650 11.87 USGS 02056000 2017-01-23 13:45 14400 14.01 USGS 02056000 2018-09-17 17:30 12300 13.15 USGS 02056000 2018-10-11 18:45 23500 17.30 USGS 02056000 2020-05-21 18:15 24400 17.60 USGS 02056000 2020-11-12 12:30 20700 16.33 USGS 02056000 2022-05-27 21:15 8060 11.01 USGS 02056000 2023-02-13 05:00 7080 10.42