# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-07 15:30:54 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 03568000 TENNESSEE RIVER AT CHATTANOOGA, TN # # 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 03568000 1826-03-00 41.50 Bd USGS 03568000 1847-03-00 42.40 Bd USGS 03568000 1867-03-11 459000 7 57.90 USGS 03568000 1874-05-01 195000 29.60 USGS 03568000 1875-03-01 410000 54.00 USGS 03568000 1875-12-31 227000 34.20 USGS 03568000 1877-04-11 190000 28.80 USGS 03568000 1878-02-25 125000 19.30 USGS 03568000 1879-01-15 252000 38.00 USGS 03568000 1880-03-18 254000 38.40 USGS 03568000 1880-12-03 174000 26.50 USGS 03568000 1882-01-19 275000 40.40 USGS 03568000 1883-01-23 261000 38.60 USGS 03568000 1884-03-10 285000 42.80 USGS 03568000 1885-01-18 174000 26.50 USGS 03568000 1886-04-03 391000 52.50 USGS 03568000 1887-02-28 181000 27.50 USGS 03568000 1888-03-31 178000 27.10 USGS 03568000 1889-02-18 198000 30.00 USGS 03568000 1890-03-02 283000 42.50 USGS 03568000 1891-03-11 259000 38.90 USGS 03568000 1892-01-17 252000 37.90 USGS 03568000 1893-02-20 221000 33.40 USGS 03568000 1894-02-06 167000 25.50 USGS 03568000 1895-01-12 212000 32.10 USGS 03568000 1896-04-05 269000 40.50 USGS 03568000 1897-03-14 257000 38.10 USGS 03568000 1898-09-05 167000 25.50 USGS 03568000 1899-03-22 273000 40.10 USGS 03568000 1900-02-15 159000 24.30 USGS 03568000 1901-05-25 221000 33.20 USGS 03568000 1902-01-02 271000 40.80 USGS 03568000 1903-04-11 210000 31.80 USGS 03568000 1904-03-25 144000 22.10 USGS 03568000 1905-02-11 146000 22.40 USGS 03568000 1906-01-26 140000 21.40 USGS 03568000 1906-11-22 222000 33.40 USGS 03568000 1908-02-17 163000 24.80 USGS 03568000 1909-06-06 163000 25.30 USGS 03568000 1910-02-19 86600 14.00 USGS 03568000 1911-04-08 198000 30.00 USGS 03568000 1912-03-31 190000 31.30 USGS 03568000 1913-03-30 222000 33.30 USGS 03568000 1914-04-03 105000 21.40 USGS 03568000 1914-12-28 185000 33.10 USGS 03568000 1915-12-20 197000 34.40 USGS 03568000 1917-03-07 341000 47.70 USGS 03568000 1918-02-02 270000 42.45 USGS 03568000 1919-01-05 189000 32.30 USGS 03568000 1920-04-05 275000 43.60 USGS 03568000 1921-02-13 213000 34.50 USGS 03568000 1922-01-23 229000 35.80 USGS 03568000 1923-02-07 188000 32.20 USGS 03568000 1924-01-05 143000 26.90 USGS 03568000 1924-12-11 138000 1925-01-14 24.40 USGS 03568000 1926-04-16 92900 20.60 USGS 03568000 1926-12-29 249000 38.40 USGS 03568000 1928-07-02 184000 30.80 USGS 03568000 1929-03-26 248000 38.50 USGS 03568000 1929-11-19 180000 28.95 USGS 03568000 1931-04-08 125000 23.30 USGS 03568000 1932-02-01 192000 30.40 USGS 03568000 1933-01-01 241000 37.60 USGS 03568000 1934-03-06 215000 34.10 USGS 03568000 1935-03-15 175000 29.50 USGS 03568000 1936-03-29 234000 1936-01-01 37.08 USGS 03568000 1937-01-04 204000 6 1937-01-01 32.96 USGS 03568000 1938-04-10 136000 6 1938-01-01 25.32 USGS 03568000 1939-02-17 193000 6 1939-01-01 33.45 USGS 03568000 1940-09-02 89400 6 1940-01-01 21.07 USGS 03568000 1941-07-18 58200 6 1941-01-01 16.69 USGS 03568000 1942-03-22 72300 6 18.86 2 1942-01-01 37.67 USGS 03568000 1942-12-30 235000 6 USGS 03568000 1944-03-30 201000 6 33.52 USGS 03568000 1945-02-18 115000 6 1945-01-01 25.22 USGS 03568000 1946-01-09 225000 6 1946-01-01 37.50 USGS 03568000 1947-01-20 186000 6 1947-01-01 33.54 USGS 03568000 1948-02-14 225000 6 1948-01-01 35.78 USGS 03568000 1949-01-06 179000 6 1949-01-01 31.46 USGS 03568000 1950-02-02 192000 6 1950-01-01 30.40 USGS 03568000 1951-03-30 140000 6 1951-01-01 27.45 USGS 03568000 1953-02-22 107000 6 1953-01-01 23.08 USGS 03568000 1954-01-22 185000 6 1954-01-01 31.70 USGS 03568000 1955-03-23 118000 6 1955-01-01 24.22 USGS 03568000 1956-02-04 187000 6 1956-01-01 29.25 USGS 03568000 1957-02-02 208000 6 1957-01-01 34.22 USGS 03568000 1957-11-19 189000 6 1957-11-20 31.61 USGS 03568000 1959-01-23 110000 6 23.06 USGS 03568000 1959-12-20 108000 6 22.96 USGS 03568000 1961-03-09 178000 6 USGS 03568000 1961-12-18 190000 6 1961-12-19 29.61 USGS 03568000 1963-03-13 219000 6 1963-03-13 1200 32.58 USGS 03568000 1964-03-16 122000 6 23.28 USGS 03568000 1965-03-26 180000 6 1965-03-27 28.42 USGS 03568000 1966-02-16 104000 6 1966-02-17 20.60 USGS 03568000 1967-07-08 120000 6 22.10 USGS 03568000 1967-12-23 148000 6 25.39 USGS 03568000 1969-02-03 121000 6 23.27 USGS 03568000 1969-12-31 186000 6 28.55 USGS 03568000 1971-02-07 90700 6 1971-02-06 20.80 USGS 03568000 1972-01-11 116000 6 1972-01-11 1200 23.13 USGS 03568000 1973-03-18 267000 6 38.98 USGS 03568000 1974-01-11 181000 6 1974-01-12 29.68 USGS 03568000 1975-03-14 148000 6 27.52 USGS 03568000 1976-01-28 67200 6 18.18 USGS 03568000 1977-04-05 191000 6 30.39 USGS 03568000 1978-01-28 115000 6 23.04 USGS 03568000 1979-03-05 145000 6 27.59 USGS 03568000 1980-03-21 168000 6 28.73 USGS 03568000 1981-02-12 50800 6 1981-02-12 1200 16.63 USGS 03568000 1982-01-04 133000 6 1982-01-05 22.54 USGS 03568000 1983-05-21 116000 6 1983-05-23 23.08 USGS 03568000 1984-05-09 239000 6 1984-05-09 1300 36.90 USGS 03568000 1985-02-02 81000 6 1985-02-09 20.02 USGS 03568000 1986-02-19 66200 6 1986-02-18 16.94 USGS 03568000 1987-02-27 109000 6 1987-02-28 23.65 USGS 03568000 1988-01-21 74100 6 1988-01-20 19.72 USGS 03568000 1989-06-21 173000 6 30.12 USGS 03568000 1990-02-19 169000 6 1990-02-17 29.77 USGS 03568000 1990-12-23 185000 6 1991-02-21 29.94 USGS 03568000 1991-12-04 146000 6 27.83 USGS 03568000 1993-03-24 113000 6 23.67 USGS 03568000 1994-03-28 202000 6 32.60 USGS 03568000 1995-02-18 99900 6 22.78 USGS 03568000 1996-01-28 145000 6 27.38 USGS 03568000 1997-03-04 138000 6 26.85 USGS 03568000 1998-04-19 207000 6 32.67 USGS 03568000 1999-01-24 91400 6 21.14 USGS 03568000 2000-04-05 137000 6 22.98 USGS 03568000 2001-02-18 86100 6 2001-02-19 18.91 USGS 03568000 2002-01-24 184000 6 29.41 2 2002-01-01 0.00 USGS 03568000 2003-05-08 241000 6 38.28 USGS 03568000 2004-09-18 160000 6 30.90 USGS 03568000 2004-12-13 153000 6 28.35 USGS 03568000 2006-01-23 63800 6 18.29 USGS 03568000 2007-01-09 66300 6 18.53 USGS 03568000 2008-02-07 55800 6 16.53