We take pride in our work — and we're confident it shows.
Bayou Segnette Gate
This project is a fabricated two-sided rotating flood control gate that prevents major flooding of waterways in Bayou Segnette which is close in proximity to the Mississippi River and the City of Metairie, LA. Each gate section is 35’-0” x 35’-0” x 26’-0”. The gate sections were loaded at Steel America using a 1,000 MT Travelift onto an ocean-going barge.
Tug Chesapeake Coast
Colonna's hauled out on the Marine Travel Lift and accomplished repairs to rudders, shafts and props.
RV Atlantic Explorer
Colonna’s Shipyard provided deck modification and Crane installation.
The Spirit of Philadelphia
Colonna’s Shipyard performed drydocking, Coast Guard Certifications, maintenance, machinery repairs and painted it.
NOAA Boat Hassler
Colonna’s drydocked and performed machinery repairs and installed the buoyancy tanks on this ship.
Kinder Morgan Coal Hoppers
This job consisted of fabricating two (2) 240-ton independently traveling coal hoppers that work in unison with two (2) 360 ton Gotwald cranes and an air suspended conveyor system. The total project weight was roughly 480 tons.
USS John W. Brown
The John Brown has been drydocked at Colonna’s multiple times since 2003. We have performed plate repair and rivet replacement among many other actions.
At Colonna’s Drydock #2 for repair
USNS Apache (T-ATF-172)
Colonna’s Shipyard performed drydocking, inspection, maintenance and re-coating.
USS Gunston Hall
Arriving at Colonna’s Drydock #1 for major overhaul
Offshore supply vessel supporting wind energy initiatives
In Colonna’s Drydock #3 The Charles J
Dredge - Norfolk Dredging Co.
Colonna’s Shipyard performed drydocking, Provided a Marine Chemist Certificate, cleaned the hull and painted it.
USS Monsoon (PC 4)
Colonna’s replaced 40% of the shell plate and stiffeners, we performed machinery repair, habitability and systems upgrades. New exterior and interior coatings were applied.
Steel America fabricated the replacement drydock caisson gate for the Aircraft Carrier graving dock #8. This gate is 158’-0” long by 57’-0” tall by 20’-0” wide and consists of over 920 tons of steel.