Donjon Marine Other service

Towing & Marine Transportation

Ocean and coastal towing, barge charter and derrick barge transportation of bulk and break-bulk cargo for domestic and international customers.

Description

Donjon Marine provides marine towing, floating derrick barge and barge transportation services to domestic and international customers for bulk and break-bulk commodities. Floating derrick barge services use ABS load-lined, U.S. Coast Guard-inspected platforms. Break-bulk cargo handling, including securing, blocking and bracing of project cargoes, and barge charter are core businesses; submersible barges are used for salvage and for transporting vessels or structures.

Key features

Fleet of twelve tugs, including the 151.1 ft *Atlantic Salvor* (2 x ALCO 16-251 F, 6,480 bhp combined, 70 tons uncertified bollard pull)
100 ft *Mary Alice* (2 x Caterpillar 3512B-HD, 3,000 bhp) and 85 ft *Thomas D. Witte*
165 ft deck barges with coaming (1,400 short tons capacity), truckable barges and the Witte 5001

Applications

Ocean and coastwise towing
Project cargo and break-bulk transport
Barge charter

Specifications

Atlantic Salvor main engines	2 x ALCO 16-251 F, 6,480 bhp @ 1,000 rpm (combined)
Atlantic Salvor bollard pull	70 tons (uncertified)
Deck barge with coaming capacity	1,400 short tons

Flat Deck Barge Charter

Charter of flat deck cargo barges from 60' x 26' x 5' to 282' x 54' x 12'6", with up to 4963 short tons of cargo capacity at 1' freeboard.

Inspection, Survey & Testing

NOAA

Benthic Habitat and Seafloor Mapping (Great Lakes Lakebed 2030)

Multi-office NOAA project collecting airborne lidar and multibeam sonar data to map Great Lakes nearshore benthic habitat (0-80 m) in support of Lakebed 2030.

Engineering & Design

Heger Dry Dock

Graving Dock Caisson Gate Design

Design of replacement caisson gates and engineering support for graving (basin) drydocks, including naval shipyard gate replacements and basin dock recertification.