Port Tampa Bay channel deepening advances with engineering work

Port Tampa Bay’s plan to deepen its shipping channel has reached another engineering milestone, the port announced on Monday, as the U.S. Army Corps of Engineers is now ready to start testing soil beneath the waterway before dredging begins. 

It’s all part of an estimated $1.2 billion to $1.5 billion effort to deepen and widen the port’s roughly 42-mile-long main stem channel from 43 feet to 47 feet to accommodate larger vessels carrying more cargo per trip. Authorized by Congress in 2024, it’s the largest infrastructure initiative in Port Tampa Bay’s history, the port says. Major construction is anticipated to begin at the start of the 2028 fiscal year.

In April, the port announced $10 million in federal funding for initial planning, engineering and design.

The U.S. Army Corps of Engineers is drilling soil borings and collecting subsurface samples along the federal navigation channel to guide engineering and design decisions, according to an Oct. 26 announcement. The investigation is expected to continue through the end of the year. 

The work addresses constraints that force larger vessels to wait for favorable tides, carry reduced loads or transfer cargo to other vessels, the port says. Those limitations increase the cost of moving goods through the harbor.

A deeper channel could improve shipping efficiency for fuel, construction materials, steel, automobiles and consumer goods, as well as reduce the number of vessel calls needed to transport the same volume of cargo, the release says.

The Army Corps’ General Reevaluation Report estimates the project could reduce transportation costs by approximately $90 million annually nationwide, the port says.

Routing more cargo directly to Tampa rather than to another Southeastern port and then trucking it to the region could eliminate more than 17 million truck miles annually, the release says. Based on the study’s 2024 assumptions, that could avoid an estimated 26,000 metric tons of carbon dioxide emissions each year.

Engineers are incorporating a “channel-within-a-channel” design that would deepen the center of the existing waterway while limiting expansion of its overall footprint.

“A project of this scale requires thoughtful engineering that considers both navigation needs and the natural environment,” Port Tampa Bay President and CEO Paul Anderson says in the release. 

The channel project is advancing in tandem with several other initiatives meant to support recent growth at the port, including the construction of Port Tampa Bay’s first new cruise terminal in 25 years at the former Banana Docks, which is targeting a 2029 completion.

Florida’s largest seaport by tonnage and acreage, Port Tampa Bay spans more than 5,000 acres and supports cargo, cruise, shipbuilding and ship repair operations. It generates about $34 billion in annual economic impact and supports more than 192,000 jobs, the port says.