- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
PERIOD OF RECORD.--DAILY GAGE HEIGHT--March 2001 to current year (seasonal records only).
Previous locations and datums are as follows:
April 1950 to June 30, 1954; chain gage and high water staff 1.5 mi downstream at datum 900.00 ft above NGVD29.July 1, 1954 to December 19, 1973; water stage recorder 2.7 mi downstream at datum 920.90 ft above NGVD29.
Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for the 2022 and 2023 water years, when records were fair. Estimated discharges are poor, unless otherwise noted.
REGULATION.--Flow regulated by temporary retention in ten retarding basins beginning 300 ft above station, four of which have slow release outlet structures to regulate the flow. Retarding basins were completed during the period 1955 to 1961 and have a combined capacity of 19,245 acre-ft.
Current Location (1973 to present); maximum peak flow, 1,810 ft³/s, gage height, 20.44 ft., May 01, 2022.
Previous Locations (1950 to 1972); maximum peak flow, 11,800 ft³/s, April 18, 1950, from rating curve extended above 1,500 ft³/s on basis of contracted opening measurement of peak flow. Gage height 48.7 ft, from floodmark, site and datum then in use.
