# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-22 08:36:08 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 01081500 MERRIMACK RIVER AT FRANKLIN JUNCTION, NH # # 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 01081500 1904-05-01 21200 6 14.50 USGS 01081500 1905-03-30 19900 6 13.90 USGS 01081500 1906-04-16 27100 6 17.20 USGS 01081500 1907-05-01 17500 6 12.80 USGS 01081500 1907-11-03 22300 6 15.00 USGS 01081500 1909-04-15 30000 6 18.50 USGS 01081500 1911-05-02 14200 6 11.30 USGS 01081500 1912-04-08 19700 6 13.80 USGS 01081500 1913-03-28 29600 6 18.30 USGS 01081500 1914-04-21 32300 6 19.50 USGS 01081500 1915-02-26 30700 6 18.80 USGS 01081500 1916-05-18 22700 6 15.20 USGS 01081500 1917-06-18 24500 6 16.00 USGS 01081500 1917-10-31 18000 6 13.00 USGS 01081500 1919-05-23 26300 6 16.80 USGS 01081500 1920-04-14 27800 6 17.50 USGS 01081500 1920-12-15 22300 6 15.00 USGS 01081500 1922-04-12 31100 6 19.00 USGS 01081500 1923-04-30 43700 6 24.00 USGS 01081500 1924-09-11 19300 6 14.50 USGS 01081500 1925-02-13 37400 6 22.80 USGS 01081500 1926-04-26 20600 6 15.12 USGS 01081500 1926-11-17 12200 6 11.02 USGS 01081500 1927-11-05 63000 6 30.85 USGS 01081500 1929-05-04 27300 6 17.67 USGS 01081500 1930-04-08 23300 6 16.14 USGS 01081500 1931-06-10 18900 6 14.24 USGS 01081500 1932-04-13 27300 6 17.73 USGS 01081500 1933-04-19 30700 6 19.99 USGS 01081500 1934-04-13 29400 6 19.45 USGS 01081500 1935-01-11 24000 6 16.88 USGS 01081500 1936-03-19 83000 6 36.40 USGS 01081500 1937-05-15 22500 6 16.25 USGS 01081500 1938-09-22 59200 6 29.50 USGS 01081500 1938-12-07 26800 6 17.60 USGS 01081500 1940-05-03 31400 6 19.44 USGS 01081500 1940-11-15 11700 6 10.87 USGS 01081500 1942-06-16 18000 6 13.82 USGS 01081500 1943-05-13 16000 6 12.90 USGS 01081500 1943-11-09 17000 6 13.34 USGS 01081500 1945-03-30 17400 6 13.55 USGS 01081500 1945-12-08 18000 6 14.60 USGS 01081500 1947-04-13 16800 6 14.27 USGS 01081500 1948-04-02 17600 6 14.05 USGS 01081500 1949-01-01 17500 6 13.99 USGS 01081500 1950-04-21 20200 6 15.30 USGS 01081500 1951-04-04 22400 6 16.34 USGS 01081500 1952-06-03 21300 6 15.40 USGS 01081500 1953-03-26 22100 6 16.20 USGS 01081500 1954-05-11 20000 6 15.18 USGS 01081500 1955-04-16 15000 6 12.63 USGS 01081500 1956-04-30 16400 6 13.21 USGS 01081500 1957-04-22 8120 6 9.03 USGS 01081500 1958-04-24 19400 6 14.80 USGS 01081500 1959-04-05 15500 6 12.71 USGS 01081500 1960-04-05 21800 6 16.02 USGS 01081500 1961-04-24 13100 6 11.37 USGS 01081500 1962-04-09 18400 6 14.28 USGS 01081500 1962-10-07 18400 6 14.27 USGS 01081500 1964-04-16 19700 6 14.97 USGS 01081500 1965-04-17 9000 6 9.47 USGS 01081500 1966-03-26 11100 6 10.44 USGS 01081500 1967-04-04 17500 6 13.79 USGS 01081500 1968-03-24 15600 6 12.75 USGS 01081500 1969-04-19 22200 6 16.24 USGS 01081500 1969-12-28 15200 6 12.53 1 USGS 01081500 1971-05-05 17300 6 13.69 USGS 01081500 1972-05-05 17200 6 13.65 USGS 01081500 1973-06-30 19100 6 14.64 USGS 01081500 1973-12-22 21500 6 15.85 USGS 01081500 1975-03-21 13800 6 11.74 USGS 01081500 1976-04-02 22100 6 16.16 USGS 01081500 1977-03-15 17700 6 13.92 USGS 01081500 1978-01-10 15700 6 12.81 USGS 01081500 1983-03-22 15900 6 12.92 USGS 01081500 1983-12-16 19300 6 14.76 USGS 01081500 1985-03-13 9760 6 9.22 USGS 01081500 1986-03-31 20500 6 15.34 USGS 01081500 1987-04-06 17700 6 13.90 USGS 01081500 1988-04-30 13300 6 11.50 USGS 01081500 1989-04-06 16200 6 13.07 USGS 01081500 1990-03-18 18300 6 14.19 USGS 01081500 1990-10-24 12800 6 11.41 USGS 01081500 1992-03-11 13500 6 11.73 USGS 01081500 1993-04-18 18200 6 14.12 USGS 01081500 1994-04-17 17500 6 13.73 USGS 01081500 1995-01-18 11300 6 10.62 USGS 01081500 1996-05-13 19200 6 14.63 USGS 01081500 1997-04-20 18500 6 14.27 USGS 01081500 1998-04-01 18600 6 14.32 USGS 01081500 1999-09-18 19000 6 14.53 USGS 01081500 2000-04-11 17300 6 13.66 USGS 01081500 2001-04-25 17600 6 13.78 USGS 01081500 2002-04-15 16900 6 13.42 USGS 01081500 2003-03-31 14800 6 12.47 USGS 01081500 2003-10-30 15600 6 12.87 USGS 01081500 2005-04-04 18700 6 14.23 USGS 01081500 2006-05-14 20800 6 15.16 USGS 01081500 2007-04-17 17300 6 13.62 USGS 01081500 2008-04-21 16300 6 13.16 USGS 01081500 2008-12-13 15800 6 12.92 USGS 01081500 2010-04-01 16100 6 13.10 USGS 01081500 2011-04-14 18300 6 14.06 USGS 01081500 2011-10-03 12400 6 11.33 USGS 01081500 2012-10-31 14800 6 12.48 USGS 01081500 2014-04-16 17900 6 13.90 USGS 01081500 2014-12-26 08:45 11600 6 10.95 USGS 01081500 2016-02-26 14:30 16300 6 13.18 USGS 01081500 2017-04-13 17:00 15900 6 12.99 USGS 01081500 2017-10-31 23:45 17400 6 13.67 USGS 01081500 2019-04-21 09:45 17500 6 13.73 USGS 01081500 2020-04-15 18:30 15500 6 12.80 USGS 01081500 2020-12-26 08:00 15500 6 12.82 USGS 01081500 2021-11-01 11:07 12100 6 11.20 USGS 01081500 2023-05-04 13:00 16500 6 13.24