GREAT MIAMI RIVER

December 3, 2024

TOTAL DISCHARGE (CFS)

Total streamflow across the Great Miami River was last observed at 5,599 cfs, and is expected to yield approximately 11,105 acre-ft of water today; about 32% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 17,284 cfs, with recent peaks last observed on 2013-12-23 when daily discharge volume was observed at 259,800 cfs.

Maximum discharge along the river is currently at the Great Miami River Below Miamisburg Oh reporting a streamflow rate of 5,170 cfs. However, the streamgauge with the highest stage along the river is the Great Miami River At Hamilton Oh with a gauge stage of 63.09 ft. This river is monitored from 11 different streamgauging stations along the Great Miami River, the highest being situated at an altitude of 978 ft, the Great Miami River Bl Indian Lake At Russells Pt Oh.

The Great Miami River is a 160-mile-long river located in southwestern Ohio. The river played a significant role in the area's history, serving as a transportation route for Native Americans and European settlers. It flows through several major cities, including Dayton and Hamilton, before emptying into the Ohio River. The river's hydrology has been altered by several dams and reservoirs, including the Indian Lake Dam and the Taylorsville Dam. These structures were built to control flooding, provide water for irrigation, and generate hydroelectric power. The Great Miami River is also a popular recreational destination, offering opportunities for boating, fishing, and hiking. Many agricultural communities rely on the river for irrigation, and several conservation efforts have been implemented to protect the river's ecosystem.

Last Updated 2024-12-03
Discharge Volume 11,105 ACRE-FT
Streamflow 5,598.8 cfs
-966.8 cfs (-14.73%)
Percent of Normal 32.39%
Maximum 259,800.0 cfs
2013-12-23
Seasonal Avg 17,284 cfs

YEAR OVER YEAR DISCHARGE (CFS)

Streamflow Conditions
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Great Miami River Bl Indian Lake At Russells Pt Oh
USGS 03260502
77 cfs 1.56 ft
Great Miami River At Sidney Oh
USGS 03261500
56 cfs 0.88 ft -9.42
Great Miami River At Piqua Oh
USGS 03262500
111 cfs 0.97 ft -11.2
Great Miami River At Troy Oh
USGS 03262700
121 cfs 2.24 ft -16.55
Great Miami River At Taylorsville Oh
USGS 03263000
140 cfs 1.52 ft -12.5
Great Miami River At Dayton Oh
USGS 03270500
633 cfs 23.84 ft -14.92
Great Miami River At Miamisburg Oh
USGS 03271500
909 cfs 3.81 ft -11.75
Great Miami River Below Miamisburg Oh
USGS 03271601
5170 cfs 9.28 ft
Great Miami River At Franklin Oh
USGS 03271620
899 cfs 0.77 ft -11.86
Great Miami River At Middletown Oh
USGS 03272100
1300 cfs 2.31 ft -16.13
Great Miami River At Hamilton Oh
USGS 03274000
1430 cfs 63.09 ft -17.34
History of the River

The Great Miami River (also called the Miami River) (Shawnee: Msimiyamithiipi) is a tributary of the Ohio River, approximately 160 miles (260 km) long, in southwestern Ohio and Indiana in the United States. The Great Miami flows through Dayton, Piqua, Troy, Hamilton, and Sidney.
The river is named for the Miami, an Algonquian-speaking Native American people who lived in the region during the early days of European settlement. They were forced to relocate to the west to escape European-American settlement pressure.
The region surrounding the Great Miami River is known as the Miami Valley. This term is used in the upper portions of the valley as a moniker for the economic-cultural region centered primarily on the Greater Dayton area. As the lower portions of the Miami Valley fall under the influence of Cincinnati and the Ohio River Valley, residents of the lower area do not identify with the Miami in the same way.

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