Ohio River at Markland Lower

1. 76.09 ftThis is the flood of record of January 1937. The entire flood plain is inundated at this level. Numerous homes, businesses and roads are flooded. Evacuations are required in the low areas of Switzerland County in Indiana, as well as Carroll and Gallatin Counties in Kentucky.
2. 74.00 ftMuch of the flood plain is inundated, including major flooding near the river in Carrollton and Warsaw, Kentucky, and Patriot and Vevay, Indiana. Numerous structures between Indiana Route 156 and the river are inundated, as well as structures between Route 42 and the river on the Kentucky side. Substantial backwater flooding occurs along creeks and streams emptying into the river, including the Kentucky River itself. Backwater rises as far upstream as Gratz result in flooding along the Kentucky River.
3. 65.00 ftA flood of this level is roughly equivalent to the FEMA 1 percent flood. Much of Main Street in Carrolton is flooded, with stretches of Route 42 in Kentucky and Route 56 in Indiana under several feet of water due to backwater flooding into creeks. Front and Short Streets in Rising Sun are inundated. The entire area of Route 42 and Highway 1039 near Markland is flooded. Portions of Davis Street in Ghent is flooded, as is Locust Street in Warsaw.
4. 64.00 ftWidespread flooding occurs in southeast Indiana and northern Kentucky near the river. Parts of Warsaw, Kentucky and Route 42 become flooded, with flooding of Rabbit Hash and Rising Sun. Indiana Route 156 is flooded along long stretches.
5. 62.00 ftSignificant backwater flooding can be expected resulting in flooding of parts of Carroll and Gallatin Counties in Kentucky and Switzerland County in Indiana. Parts of Markland, Kentucky and Florence, Indiana become flooded.
6. 59.00 ftBackwater flooding can be expected along creeks near the Ohio River and will also affect the Kentucky River. Lowland flooding becomes widespread near Carrollton, Ghent and Ethridge in Kentucky.
7. 57.00 ftLowland and backwater flooding results in dozens of road closures near the Ohio, Kentucky River and creeks and streams emptying into the Ohio River experiencing backwater flooding. Counties affected include Gallatin and Carroll Counties in Kentucky and Switzerland County Indiana. Several roads along the river become flooded in areas. If the Kentucky River is also above the 32 foot flood stage at Lockport, backwater flooding closes dozens of roads in Carroll County alone.
8. 55.00 ftWater affects some trailers parked at the mouth of Craigs Creek, one and a half miles upstream of the dam near Ethridge, Kentucky. Water also begins to cover parts of Route 156 in Indiana. Lowland flooding worsens along the river in Switzerland County, Indiana and Gallatin and Carroll Counties in Kentucky. Backwater flooding also occurs along the Kentucky River near Carrollton.
9. 52.00 ftLowland roads near the river are flooded including low-lying roads near Carrollton, Vevay, Warsaw and Florence. Portions of Indiana Route 56 are flooded downstream of Vevay.
10. 51.00 ftMainly lowland areas near the river are impacted with some roads along both the Indiana and Kentucky side of the river experiencing minor flooding.
11. 50.00 ftFlooding occurs in the River Drive area upstream of Patriot with water approaching some homes. Flooding of Ogle Park in Vevay occurs, as well as flooding in the low areas of Carrollton along the Kentucky River due to backwater. Elsewhere, flooding of some streets and parks between Route 42 and the river occurs in Kentucky.
12. 49.00 ftBackwater flooding results in water covering a few roads including Notch Lick Road near Carrollton.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.

Most recent crests

• April 8, 2025: 57.76 ft
• February 20, 2025: 51.01 ft
• March 5, 2021: 52.10 ft
• March 5, 2021: 52.74 ft
• February 13, 2019: 51.56 ft
• February 26, 2018: 57.04 ft
• March 15, 2015: 53.02 ft
• April 27, 2011: 51.97 ft
• March 14, 2011: 50.50 ft
• March 20, 2008: 49.10 ft

• UpstreamOhio River
• DownstreamOhio River at Clifty Creek
• Eagle Creek (KY) at Glencoe
• Kentucky River at Kentucky Lock 1 at Carrollton
• Mud Lick Creek at Beaverlick
• Indian-Kentuck Creek at Canaan
• Woolper Creek at Burlington
• Gunpowder Creek
• Kentucky River at Lockport

Forecasts by the Ohio River Forecast Center. Forecasts are issued routinely year-round. River Forecasts typically include ONLY 2 days of future rain from <u>forecast issuance time</u> (lower right of graph). Occasionally 3 days of future rain included.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.