USGS Water-Year Summary for Site 03274000

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

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USGS Water-Year Summary 2024

03274000 GREAT MIAMI RIVER AT HAMILTON OH

LOCATION - Lat 39°23'28", long 84°34'20" referenced to North American Datum of 1927, Butler County, OH, Hydrologic Unit 05080002, on right bank 1,000 ft downstream from Columbia Bridge at Hamilton, Ohio, 3 mi downstream from Four Mile Creek, 4.3 mi upstream from Pleasant Run, and at mile 34.8.

DRAINAGE AREA - 3,630 mi².

REVISIONS HISTORY - WSP 803: 1936. WSP 1908: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - January 1907 to June 1909 (fragmentary), January 1910 to September 1918, April 1927 to current year. Monthly discharge only for some periods, published in WSP 1305. Gage-height records collected at site 0.7 mi upstream since 1911 are contained in reports of National Weather Service. Prior to October 1962 published as Miami River at Hamilton.

GAGE - Water-stage recorder and concrete control. Datum of gage is 499.19 ft (NAVD 1988). Prior to Apr. 12, 1927, nonrecording gage at site 0.7 mi upstream at 575.63 ft (1912 adjustment). Apr. 12, 1927 to Oct. 2013 at current site at 499.98 ft (1912 adjustment).

COOPERATION - Base data furnished by Miami Conservancy District.

REMARKS - Discharge records fair for 2014, except estimated records, which are poor. Aug. 12, 2014 to Oct. 21, 2014: discharge records good. Oct. 21, 2014 to Dec. 23, 2014: discharge records fair. Dec. 23, 2014 to Oct. 22, 2015: discharge records good, except estimated records, which are considered poor. Oct. 22, 2015 to Dec. 6, 2016: discharge records good. Dec. 7, 2016 to Nov. 8, 2017: discharge records fair. Dec. 9, 2018 to Oct. 17, 2018: discharge records fair except for estimated daily discharges, which are poor.

Flood flow regulated by five retarding basins upstream from station beginning in 1920 plus other reservoirs. See REMARKS for stations 03270500 and 03272000. Also, low flow slightly regulated by Acton Lake, 25 mi upstream from station on Four Mile Creek. Recharge to the City of Hamilton wellfield is largely induced infiltration from the Great Miami River. Groundwater pumpage upstream from the station is returned to the river as treated waste water 1.5 mi downstream from the station. Also, a small amount of water pumped from groundwater farther upstream is diverted to the Little Miami River watershed through the Montgomery County regional system. This pumpage could affect low flow. The Miami and Erie Canal diverted water from the basin 1.7 mi upstream from station until Nov. 1, 1930, when the canal was abandoned; amount of diversion is not known.

Water-temperature data formerly collected at this site.

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.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Mar. 26, 1913, reached a stage of 38.5 ft, site and datum then in use; discharge, 352,000 ft³/s, computed by Miami Conservancy District.