The result of rounds of incessant rainfall over the Ohio Valley has resulted in major rivers swelling to above flood stage to levels not seen in several years as cities prepare for a long-term flood event, writes FOX WEATHER.

Many communities monitor the Ohio River, which forms where the Allegheny and Monongahela rivers merge in Pittsburgh, Pennsylvania.

In Pittsburgh, a river gauge near Point State Park reported the Ohio River crested at 28.37 feet on Thursday morning – just shy of major flood stage, which is considered 28.5 feet. While the river level was the highest since around Sept. 11, 2018, it stayed below levels where operations are impacted at PNC Park, home to Major League Baseball"s Pittsburgh Pirates.

The last time the river flooded PNC Park was during Hurricane Ivan on Sept. 18, 2004. Due to the high water levels, the city’s Department of Public Works has closed several parks and trails along river banks.