Great Miami River at Troy

Highest listed crest 13.14 ftFlood stage 12.0 ft2 crests since 2024

The Great Miami River at Troy crested above flood stage 2 times among the 2 crests the National Weather Service lists from 2024 to 2025. The highest, 13.14 ft on April 6, 2025, was moderate flooding, 1.14 feet above flood stage. 6 other gauges on the Great Miami River crested above flood stage within a week of it.

The gauge

Highest listed crest: 13.14 ft; April 6, 2025; 17,852 cubic feet per second
Flood stage: 12.0 ft; Major flooding from 17.0 ft
Crests at major: 0; 2 above flood stage
Most recent flood crest: April 6, 2025; 13.14 ft, moderate flooding
Location: Miami County; Near Troy (1.9 mi), Tipp City (4.6 mi), Piqua (8.5 mi)
Identifiers: NWS TRYO1; USGS 03262700

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Great Miami River at Troy

Action stage	9.5	0	—	The level at which the NWS or its partners begin to take action
Flood stage (minor)	12.0	1	Apr 3, 2024	Minimal or no property damage, but possibly some public threat
Moderate flood stage	13.0	1	Apr 6, 2025	Some inundation of structures and roads near the stream
Major flood stage	17.0	0	—	Extensive inundation of structures and roads

Every listed crest

2 crests from 2024 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
18 crests measured on an earlier gauge datum are left out: 16.40 ft on Jun 11, 1958; 16.20 ft on Jan 22, 1959; 14.66 ft on Mar 6, 1963; 14.42 ft on Apr 21, 1964; 13.92 ft on Feb 24, 1975; 12.90 ft on Feb 24, 1985; and more.

Highest crests

Highest listed crests, Great Miami River at Troy

1	Apr 6, 2025	13.14	+1.14	Moderate	17,852
2	Apr 3, 2024	12.73	+0.73	Minor	16,905

The worst floods along the Great Miami River

For this gauge's highest crests, the other gauges on the Great Miami River that crested above flood stage within a week.

April 6, 2025: 13.14 ft here, moderate flooding

TaylorsvilleOH · Apr 6, 2025 · 26.80 ft · Minor
MiamitownOH · Apr 6, 2025 · 23.26 ft · Minor
MiamisburgOH · Apr 7, 2025 · 17.04 ft · Minor
FranklinOH · Apr 6, 2025 · 14.61 ft · Minor
MiddletownOH · Apr 7, 2025 · 14.02 ft · Minor
SidneyOH · Apr 5, 2025 · 13.92 ft · Minor

April 3, 2024: 12.73 ft here, minor flooding

TaylorsvilleOH · Apr 4, 2024 · 23.08 ft · Minor
SidneyOH · Apr 3, 2024 · 12.74 ft · Minor

Gauges on the Great Miami River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Great Miami River

Sidney	OH	10.0	19.60 ft, Mar 25, 1913	1
Piqua	OH	14.0	14.91 ft, Dec 22, 2013	0
Troy this gauge	OH	12.0	13.14 ft, Apr 6, 2025	0
Taylorsville	OH	22.0	31.50 ft, Jan 21, 1959	0
Miamisburg	OH	16.0	20.65 ft, Jan 21, 1959	0
Franklin	OH	14.0	17.60 ft, Jan 22, 1959	0
Middletown	OH	12.0	19.20 ft, Jan 22, 1959	0
Hamilton	OH	75.0	76.60 ft, Mar 19, 1943	0
Miamitown	OH	16.0	33.40 ft, Jan 29, 1959	1

Other gauges in Miami County

Flood gauges in Miami County

Piqua	14.0	14.91 ft, Dec 22, 2013	0

Miami County: every hazard · River floods across the country · Ohio

NOAA National Water Prediction Service, gauge TRYO1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.