The sound of water pumps will replace the sounds of fireworks and airplanes in Louisville this weekend.

The city has canceled the annual Thunder Over Louisville celebration due to historic flooding in Derby City.

Here's Mayor Craig Greenberg this morning.

So we're 23ft above normal.

We expect that the Ohio River will rise about another one foot over the course of the next 24 hours, at which point is expected to crest tomorrow at 37ft, which is definitely a top ten flood in Louisville's history.

The cost of the Louisville and Jefferson County Metropolitan Sewer District said over 8 billion gallons of water have passed through flood pump stations since last Friday.

He reports that the flood systems built in the 1950s are working well, and noted that improvements made to the system after the historic 1997 flood played a key role in protecting people in this latest flood.

But normally, if we hadn't built that, there would have been much more flooding.

This was a major win for the community.

I know that's not going to feel like that.

To those who were impact it.

We did have a couple of hundred people who had water in their basements, and there were a few, I think, that actually did get flood waters in their homes.

But typically this would have been an event where we would have had hundreds, if not thousands of houses flooded.

Mayor Greenberg went on to say that while the city has started cleanup efforts, he expects to issue announcements on larger cleanup efforts as the waters recede.

He also noted that all other Kentucky Derby festival events will continue, but some may have to change location.