A $10 million federal investment is headed to Port Tampa Bay, deepening the harbor and keeping pace with a growing regional supply chain.

U.S. Rep. Kathy Castor announced the funding Thursday alongside port leadership, combining $3 million from her FY26 community project requests with another $7 million secured through the U.S. Army Corps of Engineers.

The money will go toward the early phase of the Tampa Harbor Navigation Improvement Project — specifically planning, engineering and design work needed before any dredging can begin.

By deepening the port’s 42-mile shipping channel, larger vessels carrying more cargo can move in and out of Tampa Bay, easing pressure on a system that feeds everything from fuel deliveries to construction materials across the region.

“This $10 million federal investment … is about keeping goods moving safely, efficiently, and affordably,” Castor said.

Port Tampa Bay already plays an outsized role in the state’s economy, moving a wide mix of cargo and supporting a supply chain that stretches well beyond Hillsborough County.

The idea, according to Castor, is to reduce bottlenecks before they become a problem — not just at the port, but across the region.

“These improvements will allow larger vessels carrying more cargo,” she said, noting it could also cut down on truck traffic and help stabilize costs tied to shipping.

Before dredging equipment hits the water, the Army Corps of Engineers needs to map out how the channel will be deepened, how it impacts surrounding areas and how to do it safely.

“This is the foundation that makes the entire project possible,” Castor said.

The remaining $7 million helps move that process along, part of what Castor described as a coordinated push between federal and local partners to keep the project from stalling out in early phases.

“By aligning local priorities with federal resources, we can accelerate timelines,” she said.

As the Tampa Bay region continues to grow — particularly along the I-4 corridor — infrastructure like Port Tampa Bay becomes less about expansion and more about capacity.