Great Miami River at Sidney OH water level

Name: Great Miami River at Sidney OH water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Great Miami River, Ohio, United States

Directions

Below flood stage

Water level

1.42ft Up 0.04 ft over the last 24 hours

Measured Oct 18, 2026, 06:30 PM EDT (56 min ago)

Flow: 194 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to rise to 1.60 ft by Sunday, October 18 at 02:00 PM. Issued Sunday, October 18 at 09:24 AM by NOAA National Weather Service.

What this means

The Great Miami River at Sidney OH is at 1.42 ft, in the normal range.

It is 8.58 ft below the flood stage of 10.00 ft.

It has risen 0.04 ft over the past 24 hours. The forecast expects the river to rise to 1.60 ft by Sunday, October 18 at 02:00 PM. There is still 8.58 ft of room before flood stage. In the last month it has stayed between 1.30 ft and 1.58 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 19.60 ftMarch 25, 1913
Forecast peak: 1.60 ftSunday, October 18 at 02:00 PM

Floating and fishing near Great Miami River at Sidney OH

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 10.00 ft, 8.58 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

19.60 ft: This will reach the flood of record of 1913. Much of the City of Sidney would be inundated, as well as areas along the river through Shelby County. Hundreds of homes and businesses would be inundated.
18.54 ft: The river will breach city flood wall with the entire south end of the city flooded. Downstream in Miami County, major flooding occurs with numerous homes and businesses impacted.
18.02 ft: The river breaches the Jersey barriers on South Ohio Avenue in front of the Big Four Bridge. Flooding occurs along Crescent Drive, South Ohio and Brooklyn Avenue.
16.00 ft: Flooding continues along Riverside Drive and Custenborder Field. In addition, flooding worsens along County Road 25A, near the cemetery, north to the Big Four Bridge. Downstream of Sidney, flooding worsens in Shelby County along the river.
14.60 ft: The river breaches the west bank on County Road 25A South. County Road 25A near the cemetery will flood north to under the Big Four Bridge where the Jersey barriers are located.
14.00 ft: Several homes and businesses are impacted on the east side of Sidney, as well as Port Jefferson.
13.00 ft: Water approaches properties along Canal Street in Port Jefferson, with flooding worsening in Custenborder Field in Sidney. Flooding impacts yards and parking lots along Riverside Drive. Flooding extends through much of Berger Park. Flooding encroaches to near mobile homes along Brooklyn Avenue on the east side of the Great Miami.
12.00 ft: The river breaches the bank on Riverside Drive, with flooding of Custenborder Field at the east river intake. Flooding of properties occurs along the river on Riverside Drive from the B and K Root Beer stand to the city limits.
11.00 ft: Custenborder Field has some flooding of perimeter areas, along with flooding occurring in low spots on Miami River Road.
10.00 ft: The river approaches the bank on the west side of Custenborder Field. At stages above 10 feet, city officials begin flood operations.
1.42 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 23 %.

Rank	Level	Date
1	19.60 ft	March 25, 1913
2	15.91 ft	January 21, 1959
3	15.61 ft	December 22, 2013
4	14.58 ft	July 13, 1992
5	14.40 ft	July 9, 2003
6	14.40 ft	March 20, 1927
7	14.36 ft	December 30, 1990
8	14.16 ft	January 6, 2005
9	13.92 ft	April 5, 2025
10	13.64 ft	August 8, 1995

Weather at the gauge

Rain in the last 3 days: 0.15 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 53° 38° – Wind 16 mph

18 Sun 60° 36° – Wind 10 mph

19 Mon 65° 37° – Wind 6 mph

20 Tue 66° 46° – Wind 8 mph

21 Wed 66° 44° – Wind 7 mph

22 Thu 65° 44° – Wind 6 mph

23 Fri 67° 46° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:51 AM Sunset 06:54 PM Daylight 11 hr, 3 min First quarter 53%

Map

Other gauges on the Great Miami River

Gauge	Level	Compared with normal	24 hours	Distance
Great Miami River at Piqua OHRiver gauge, Great Miami River	1.64 ft	Below flood stage	+0.14 ft	10 mi
Great Miami River at Troy OHRiver gauge, Great Miami River	2.78 ft	Below flood stage	+0.10 ft	18 mi
Great Miami River at Taylorsville OHRiver gauge, Great Miami River	3.45 ft	Below flood stage	+0.07 ft	29 mi
Great Miami River at Dayton OHRiver gauge, Great Miami River	24.57 ft	Below flood stage	−0.04 ft	36 mi
Great Miami River at Miamisburg OHRiver gauge, Great Miami River	4.23 ft	Below flood stage	−0.02 ft	45 mi
Great Miami River at Franklin OHRiver gauge, Great Miami River	1.15 ft	Below flood stage	−0.02 ft	51 mi
Great Miami River at Middletown OHRiver gauge, Great Miami River	2.53 ft	Below flood stage	−0.02 ft	55 mi
Great Miami River at Hamilton OHRiver gauge, Great Miami River	63.16 ft	Below flood stage	±0	66 mi
Great Miami River at Miamitown OHRiver gauge, Great Miami River	1.45 ft	High	+0.01 ft	80 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Loramie Creek at Lockington OHRiver gauge, Loramie Creek	1.40 ft	Below flood stage	±0	7 mi
Loramie Creek near Newport OHRiver gauge, Loramie Creek	22.6 cfs	Normal	−5.9 cfs	12 mi
Bokengehalas Creek at De Graff OHRiver gauge, Bokengehalas Creek	35.9 cfs	Very high	±0	13 mi
Stillwater River at Pleasant Hill OHRiver gauge, Stillwater River	155 cfs	High	+2.0 cfs	19 mi
Greenville Creek near Bradford OHRiver gauge, Greenville Creek	75.2 cfs	High	−3.6 cfs	20 mi
Mad River at West Liberty OH - 03266560River gauge, Mad River	40.9 cfs	High	+3.5 cfs	21 mi
Chickasaw Creek at St. Marys OHRiver gauge, Chickasaw Creek	0.7 cfs	Normal	−0.2 cfs	22 mi
Mad River near Urbana OHRiver gauge, Mad River	155 cfs	Very high	±0	22 mi

Questions and answers

What is flood stage for the Great Miami River at Sidney OH?

The official flood stage is 10.00 ft. The level is currently 8.58 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Great Miami River at Sidney OH today?

On Oct 18, 2026, 06:30 PM EDT, the water level was 1.42 ft. Up 0.04 ft over the last 24 hours.

Is Great Miami River at Sidney OH rising or falling?

Up 0.04 ft over the last 24 hours.

Is the level of Great Miami River at Sidney OH normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Great Miami River at Sidney OH?

The highest level on record is 19.60 ft on March 25, 1913.

Is Great Miami River at Sidney OH expected to rise?

The forecast expects the river to rise to 1.60 ft by Sunday, October 18 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:03261500 (Agency page)
Coordinates: 40.28699, -84.14994 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	1.42 ft	2026-10-18 22:30	Provisional
Flow	194 cfs	2026-10-18 22:30	Provisional

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How to cite

U.S. Geological Survey: Great Miami River at Sidney OH (usgs:03261500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/ohio/great-miami-river-at-sidney-oh

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer