"There's no other river system that has this kind of contaminant ... happen in those states eventually happened to us." A map of the Ohio River Watershed created using USGS data.

Languages: English. Several states along the Ohio River are now taking a closer look at the river's water quality after a Norfolk Southern Railway train derailed in Ohio earlier this month.

The National Weather Service (NWS) had previously issued flood warnings for the Ohio River, with updated flood inundation maps released on Sunday, stressing the continued risk across the region.

That overwhelms the stormwater and sewer system in Pittsburgh. And so when it rains a lot, sewage overflows and seeps into the Ohio River, creating these toxic algae blooms. CHANG: Well ...

CINCINNATI, Ohio (WDTN) — The Ohio River in Cincinnati is expected to soon reach flood stage. On Friday at 5 p.m., river levels were measured at 49.05 feet. For the river, 52 feet is designated ...

While Louisville's levee system protects much of the city, some parts of Jefferson County were inundated this week as the Ohio River rose. Fueled by historic rainfall across the region ...