# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-20 23:01:50 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 01625000 MIDDLE RIVER NEAR GROTTOES, 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 01625000 1924-05-00 16200 7,Bd 22.80 Bd USGS 01625000 1928-08-17 5740 12.90 USGS 01625000 1929-04-16 6090 13.30 USGS 01625000 1929-10-02 2950 9.30 USGS 01625000 1931-08-23 2530 8.70 USGS 01625000 1932-03-28 4220 11.00 USGS 01625000 1932-10-18 9560 17.00 USGS 01625000 1934-03-03 4220 11.00 USGS 01625000 1934-12-01 13500 20.60 USGS 01625000 1936-03-18 24500 28.57 1877 USGS 01625000 1937-04-26 9660 17.13 USGS 01625000 1937-10-20 8660 16.10 USGS 01625000 1939-02-04 5310 12.15 USGS 01625000 1940-08-16 12500 19.81 USGS 01625000 1941-04-05 2090 8.14 USGS 01625000 1942-05-22 11800 19.08 USGS 01625000 1942-10-15 21000 26.30 USGS 01625000 1944-09-19 6810 14.10 USGS 01625000 1945-09-18 13400 20.50 USGS 01625000 1945-12-31 1700 7.18 USGS 01625000 1947-03-14 3820 10.50 USGS 01625000 1948-02-14 8960 16.40 USGS 01625000 1949-06-18 16100 22.74 USGS 01625000 1950-02-02 2810 9.07 USGS 01625000 1950-12-08 5420 12.53 USGS 01625000 1952-02-04 4620 11.47 USGS 01625000 1953-03-25 6450 13.70 USGS 01625000 1954-03-01 4940 11.86 USGS 01625000 1955-08-18 12700 19.93 USGS 01625000 1956-03-15 1400 6.62 USGS 01625000 1957-04-06 4700 11.58 USGS 01625000 1958-04-23 4220 10.97 USGS 01625000 1959-06-03 3230 9.68 USGS 01625000 1960-05-28 5580 12.67 USGS 01625000 1961-04-13 3090 9.52 USGS 01625000 1961-10-21 9560 16.98 USGS 01625000 1963-03-12 7170 14.53 USGS 01625000 1964-01-25 2800 8.98 USGS 01625000 1965-02-08 3230 9.71 USGS 01625000 1966-02-14 2320 8.20 USGS 01625000 1967-03-07 7840 15.24 USGS 01625000 1967-12-11 2520 9.49 USGS 01625000 1969-08-20 5860 13.04 USGS 01625000 1969-12-31 5600 12.76 USGS 01625000 1971-05-30 11200 18.70 USGS 01625000 1972-06-22 16300 21.51 USGS 01625000 1972-10-06 15600 21.08 USGS 01625000 1973-12-27 8590 15.99 USGS 01625000 1975-03-19 12000 18.63 USGS 01625000 1976-01-01 5090 12.66 USGS 01625000 1976-10-09 10300 17.40 USGS 01625000 1978-01-26 10000 17.18 USGS 01625000 1979-02-25 7660 15.15 USGS 01625000 1979-10-03 4330 11.78 USGS 01625000 1981-05-20 707 5.79 USGS 01625000 1982-06-14 6930 14.51 USGS 01625000 1983-03-19 6610 14.20 USGS 01625000 1984-03-29 7140 14.70 USGS 01625000 1985-08-19 2630 9.43 USGS 01625000 1985-11-05 38500 33.09 USGS 01625000 1987-04-17 12200 18.80 USGS 01625000 1988-01-20 1510 7.19 USGS 01625000 1989-05-02 4580 12.03 USGS 01625000 1990-01-01 4820 12.31 USGS 01625000 1990-10-23 3710 10.91 USGS 01625000 1992-04-22 11300 18.16 USGS 01625000 1993-03-04 13300 19.56 USGS 01625000 1994-03-29 5540 12.65 USGS 01625000 1995-06-28 5460 12.55 USGS 01625000 1996-09-07 44300 35.62 USGS 01625000 1996-12-02 3200 9.63 USGS 01625000 1998-01-08 9590 16.79 USGS 01625000 1999-09-30 1350 6.68 USGS 01625000 2000-09-02 1820 7.49 USGS 01625000 2001-03-21 5090 12.10 USGS 01625000 2002-04-22 1480 6.91 USGS 01625000 2003-09-19 12900 19.31 USGS 01625000 2004-09-29 9590 16.79 USGS 01625000 2005-03-29 2000 7.80 USGS 01625000 2006-06-28 6070 13.22 USGS 01625000 2006-11-17 5950 13.09 USGS 01625000 2008-04-29 2510 8.63 USGS 01625000 2009-05-04 2590 8.76 USGS 01625000 2010-01-25 10600 17.47 USGS 01625000 2011-04-17 8940 16.03 USGS 01625000 2011-12-08 5940 13.07 USGS 01625000 2013-05-08 7790 14.97 USGS 01625000 2014-05-16 4200 10.99 USGS 01625000 2015-09-30 4490 11.37 USGS 01625000 2016-02-17 4300 11.12 USGS 01625000 2017-05-26 00:15 5930 13.06 USGS 01625000 2018-09-18 07:30 11100 17.83 USGS 01625000 2018-12-21 14:00 5200 12.24 USGS 01625000 2020-08-06 18:30 5400 12.47 USGS 01625000 2020-11-12 20:45 3610 10.22 USGS 01625000 2022-02-04 17:30 2980 9.34 USGS 01625000 2023-02-18 02:00 2770 9.02