Laborde Products Powers Newbuild M/V Larry Gravely by Diversified Marine

Why It Matters

The launch underscores growing demand for low‑emission, high‑reliability propulsion in America’s inland waterway logistics, a critical link in construction material supply chains.

Key Takeaways

• Laborde installed two 803‑hp Mitsubishi Tier 3 S6R2 engines.
• Vessel built by Diversified Marine in Houma, Louisiana for inland waterways.
• Designed for durability, speed, and long‑term serviceability in aggregate transport.
• Vulcan Materials slated to acquire the towboat for future operations.
• Laborde coordinated engine application during construction, ensuring propulsion alignment.

Pulse Analysis

Inland towboats like the M/V Larry Gravely are the workhorses of America’s aggregate supply chain, moving sand, gravel and crushed stone from quarries to construction sites via the Mississippi and its tributaries. By equipping the vessel with Mitsubishi’s Tier 3‑compliant S6R2 engines, Laborde delivers a powertrain that meets stringent emissions standards while providing the torque needed for heavy‑load operations. The twin‑screw configuration further enhances maneuverability and redundancy, essential for the tight schedules and variable river conditions that define inland freight.

Vulcan Materials, the nation’s largest producer of construction aggregates, is expanding its fleet with vessels that promise lower operating costs and higher uptime. The Larry Gravely’s design prioritizes durability and straightforward maintenance, reducing downtime and lifecycle expenses. Laborde’s early involvement in the build allowed the propulsion system to be fully integrated with the hull and control systems, a practice that minimizes retrofitting risks and ensures optimal performance from day one. This collaborative approach reflects a broader industry shift toward integrated engineering solutions that align vessel architecture with propulsion technology.

The partnership between Laborde Products, Diversified Marine, and a major material supplier signals a growing emphasis on environmentally responsible, efficient inland shipping. As EPA regulations tighten and shippers seek to lower carbon footprints, Tier 3 engines are becoming the baseline for new builds. Laborde’s expertise in marine propulsion positions it to capture a larger share of this market, while shipyards benefit from streamlined installation processes. The Larry Gravely thus exemplifies how modern engineering, regulatory compliance, and strategic supplier relationships converge to shape the future of U.S. waterborne freight.