This very wet year could be a costly one for farmers just with crop loss alone. But expenses pile up along with the water too.

With all the mud, some farmers are altering their combines just to get through it. Those alterations come with a big price tag. Still, a service shop in Aberdeen is doing a lot more of them this year.

You can see outside RDO Equipment in Aberdeen how wet the year has been. You can tell from the work going on inside too.

"Getting preparation ready for the wet season, it's been extremely busy for us," Colin Artz said.

Artz works for RDO and says the service shop has already added rear-wheel drive to ten combines so the back wheels can help spin through the mud too.

The shop would typically see one of those jobs in a year, if any. The cost is about $20,000. Some are adding an extra set of wheels on the front end. That's about $10,000.

"Quite a bit of money going out there to get their crops out of the field," Artz said.

A crew that travels the country harvesting added tracks to their combine so they could make it through the South Dakota mud. They spent $62,000 for a set.

Despite that cost, there are still more farmers that would like to buy them if they could.

"We have people waiting for tracks, people calling in asking for them. And if we find a set they're pretty much spoken for before we even hang up the phone," Artz said.

With so much money still sitting on the fields, Artz isn't surprised some are investing so much to get it off.  He expects more combines to come in and get equipped to fight with the mud.

"Every year is always busy for us for getting ready for harvest, but nothing like this," Artz said.

Harvest has just started in northeast South Dakota. Work inside RDO Equipment shows it's far from over.

The moisture could lead to more expenses too. Last year, Artz said combines had more damage because of spinning through the mud. There's a lot more moisture this year so he's expecting that damage to be worse.