New Haven Marinas acquires Grafton Harbor Marina near St. Louis after 20 years under its founders. The acquisition makes Grafton Harbor the company’s eighth marina across five US states and its second location along the American Great Loop.

Larry the Photographer

Grafton Harbor Marina is located along the Mississippi and Illinois Rivers and is used by regional and long-distance boaters. The marina offers 154 covered slips and more than 150 uncovered slips. The site includes a breakwater system and onsite operations such as sunset cruises, a winery, a floating bar, a ship shop and a restaurant.

In a message, founders Joe and Jan DeSherlia stated: “The past 20 years have truly been a whirlwind of excitement, adventure and memories we will cherish forever. We are deeply grateful for each of you – our friends, our extended family and the heart of Grafton Harbor. Serving you has been one of the greatest privileges of our lives.”

The DeSherlias also announced the incoming owners: “We are thrilled to introduce the new owners, Josh, Dallas and Rachel. With new docks on the horizon – and a few surprises they can’t wait to share – we know you will feel their dedication and love for this place immediately.”

According to their statement, the couple plans to remain part of the marina community as slip holders.

Jan and Joe DeSherlia. Grafton Harbor Marina

New Haven Marinas plans to invest in the marina by expanding dockage, adding amenities and hosting community-focused events.

Josh Conley, a representative of New Haven Marinas, said: “We are excited to build on the legacy Joe and Jan DeSherlia began more than 20 years ago at Grafton Harbor Marina, and we are grateful for the foundation they created. With expansion efforts already underway and a few surprises planned for 2026, we look forward to enhancing the marina and bringing the community together.” 

The sale was brokered by National Marina Sales. Rick Roughen, broker and owner of the firm, said: “We are proud to have brokered this sale and believe it presents an exciting opportunity for both parties. New Haven Marinas brings a wealth of knowledge and resources to the table, ensuring that Grafton Harbor will continue to thrive.”

The transaction comes after the acquisition of Xtreme Cove Marina in Oklahoma and the August purchases of Kentucky-based Kuttawa Harbor Marina and Green River Marina.