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Water-Year Summary for Site 04177000

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Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
04177000 Ottawa River at University of Toledo Toledo OH
LOCATION - Lat 41°39'34.85", long 83°36'45.17" referenced to North American Datum of 1983, Lucas County, OH, Hydrologic Unit 04100001, Gage house located on DS left bank 30 ft. landward from stream, 30 ft. DS from bridge on Stadium Drive at University of Toledo, 0.6 mi downstream from Deline Ditch, 5.5 mi upstream from Sibley Creek and 10.8 mi upstream from mouth.
DRAINAGE AREA - 150 mi².
REVISIONS HISTORY - WSP 1307: Drainage area. Discharges previously approved for the period Oct. 17, 2014 to Oct. 22, 2014 were revised on Nov. 19, 2015.
PERIOD OF RECORD - March 1945 to September 1948 (published as "Tenmile Creek at Toledo"). August 1976 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 575.31 ft (NAVD 1988). Prior to October 2012, datum of gage was 576.28 ft (NGVD 1929). From August 1976 to July 1979 at site 500 ft downstream at 576.28 ft (NGVD 1929). Prior to September 30, 1948, water-stage recorder at site 2,500 ft upstream at 580.00 ft. (NGVD 1929).

Oct. 1, 2013 to Apr 8, 2015: records good except for estimated record, which are poor. Apr. 8, 2015 to Dec. 1, 2015: records fair except for estimated record, which are poor. Dec. 1, 2015 to Feb. 16, 2016: records good except for estimated records, which are poor. Feb. 17, 2016 to Oct. 18, 2016: records fair except for estimated records, which are poor. Oct. 19, 2016 to Oct. 18, 2017: discharge records poor.  For the period Oct. 19, 2017 to Nov. 19, 2018, discharge records rated poor.

Record quality ratings will not be included in the water-year summary for approved records newer than 09/30/2019. Record quality is still being rated internally. For questions about record quality ratings, please send email to gs-w-oh_NWISWeb_Data_Inquiries@usgs.gov.

Water-quality data formerly collected at this site.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 1, 1943, reached a stage of 15.1 ft, at 1929 datum, from floodmark, Lucas County Sanitary Engineer; discharge 3,400 ft³/s. Flood of April 25, 1950, reached a stage of 15.0 ft, at 1929 datum, from floodmark; discharge 3,300 ft³/s.