Delta Queen steamboat supporters have assured the head of the Coast Guard that any safety concerns about the vessel will be addressed before taking to the water.

Delta Queen steamboat supporters have assured the head of the Coast Guard that any safety concerns about the vessel will be addressed before taking to the water.

Before the boat can carry passengers, it must be exempt from the federal Safety of Life at Sea Act, which prohibits overnight excursions on wooden vessels, the St. Louis Post-Dispatch (http://bit.ly/2l1m0gO ) reported.

Coast Guard Adm. Paul Zukunft cited safety concerns like the boat's more than 90-year-old boilers being exposed to bare wood. He also said it's a concern that there's only one exit off the boat, and little done to get the boat up to date.

Democratic Sen. Claire McCaskill, one of two lawmakers who introduced a bill last month to restore the exemption, said Zukunft's concerns are addressed in the bill. McCaskill's office cited the bill's provisions that boilers and generators must be upgraded within noncombustible enclosures equipped with fire suppression systems.

The Delta Queen was bought in February 2015 with the goal of restoring the vessel, but Chief Operating Officer Leah Ann Ingram said no major repairs can be made without the Coast Guard's approval.

Ingram said the cost to upgrade the steamboat is about $10 million. The boat could be on the water in spring 2018 if an exemption passes in the spring of this year.

The Delta Queen steamboat was originally used as an overnight passenger vessel in 1927. Corporate offices of the Delta Queen Steamboat Co. opened last fall in Kimmswick, but the boat is currently docked in Houma, Louisiana.