USGS Water-Year Summary for Site 03261500

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	00060 Discharge(Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

03261500 GREAT MIAMI RIVER AT SIDNEY OH

LOCATION - Lat 40°17'13", long 84°09'00" referenced to North American Datum of 1927, Shelby County, OH, Hydrologic Unit 05080001, on right bank, 50 ft upstream from North Street bridge in Sidney, and 0.5 mi downstream from Tawawa Creek.

DRAINAGE AREA - 541 mi².

REVISIONS HISTORY - WSP 1305: 1914(M), 1922(M). WSP 1908: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - February 1914 to current year. Prior to October 1962, published as Miami River at Sidney.

GAGE - Water-stage recorder. Datum of gage is 923.68 ft (NAVD 1988). Prior to Sept. 18, 1919, nonrecording gage at site 50 ft downstream at datum 926.46 ft (1912 adjustment); Sept. 18, 1919 - Aug. 1925, nonrecording gage at same site at datum 924.7 ft (1912 adjustment); Aug. 1925 - Sept. 30, 2013, at present site at same datum.

REMARKS -

Records good for 2014 except for estimated records, which are poor. Oct. 1, 2014 to Dec. 15, 2014: records fair. Dec. 15, 2014 to Feb. 12, 2015: records fair, except for estimated records, which are poor. Feb. 12, 2015 to Apr. 14, 2015: records good, except for estimated records, which are poor. Apr. 14, 2015 to Oct. 27, 2015: records good. Oct. 27, 2015 to Apr. 20, 2016: discharge records good, except for estimated records, which are poor. Apr. 21, 2016 to Aug. 3, 2016: discharge records fair. Aug. 4, 2016 to Oct. 26, 2016: discharge records good. Oct. 27, 2016 to Aug. 17, 2017: discharge records good except for estimated daily discharges, which are poor. Aug. 18, 2017 to Oct. 23, 2017: discharge records fair. Oct. 24, 2017 to Oct. 15, 2018: discharge records fair except for estimated daily discharges, which are poor. Oct. 15, 2018 to Sept. 27, 2019: discharge records fair except for estimated discharges, which are poor. Sept. 27-30, 2019: discharge records 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.

Flow slightly regulated by Indian Lake and Kiser Lake upstream from station. Prior to 1926, flow diverted from river into Miami and Erie Canal upstream from station; amount of diversion not published. Flow diverted from river by Sidney Water Treatment Plant upstream from station and returned as treated wastewater downstream from station. Average diversions in ft³/s for the following water years are in the table below:

Water Year   Average Diversion
   2014            4.57
   2015            4.63
   2016            3.15
   2017            3.34
   2018            0.48
   2019            0.63
   2020            0.24
   2021            0.52
   2022            0.18
   2023            1.15

Sediment data formerly collected at this site.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Mar. 25, 1913, reached a stage of 19.6 ft, present datum; discharge, 44,000 ft³/s, computed by Miami Conservancy District.