Maxima & Barker Stories — Wilderness North

Celebrating 30 Years of Wilderness North  –          

Maxima & Barker Stories

M/V Mark W. Barker


The first Great Lakes bulk carrier to be built on the Great Lakes in more than 35 years, M/V Mark W. Barker is also the first new build for Interlake since 1981.

This highly versatile River-Class vessel highlights Interlake’s long-term commitment to corporate social responsibility and sustainability.

All aspects of the vessel have been designed to ensure that it will have a low environmental impact to the Great Lakes and to those who work aboard.


Constructed at Fincantieri Bay Shipbuilding in Sturgeon Bay, Wisconsin, the 639-foot ship will carry all types of cargo throughout the freshwater Lakes and River systems but was designed to navigate the tight bends of the Cuyahoga River in Cleveland.

The Mark W. Barker is named for Interlake’s President and second-generation leader of the family-owned and -operated Interlake Steamship fleet.

She will be underway in Summer 2022 and officially christened in Cleveland.

The ship’s forward-looking design features include lowered emissions, high-efficiency propulsion and maneuverability, and enhanced cargo solutions to meet customer demands.

The Mark W. Barker will be the first ship on the Great Lakes with engines that meet EPA Tier 4 emissions standards.

She will be powered by twin EMD main engines generating 8,000 total horsepower that turn a single four-blade, controllable-pitch propeller through a Lufkin twin-input, single-output gearbox. She will have 1,000-hp Kongsberg bow and stern thrusters.

Her hull has been optimized for efficiency and all systems have been designed to ensure low energy consumption. A Kongsberg high-lift rudder optimizes the wake through the propeller.

The newest self-unloading bulk carrier has a unique cargo hold arrangement and cargo hatch covers designed for maximum cubic space and the ability to handle difficult cargoes.

Five large hydraulically controlled stackable MacGregor hatches, more commonly found on ocean-going vessels, offer enhanced flexibility with project cargoes and expedite loading operations.

Unlike most Great Lakes freighters, the Mark W. Barker has a square-shaped, flat-bottomed cargo hold instead of a traditional V-shaped angled bottom that funnels bulk cargo onto conveyer belts for offloading.

The combination of larger hatch openings and additional cargo hold space was designed with future cargoes in mind to include non-free-flowing bulk material such as wind-turbine blades.

In addition, the unloading boom is located on the forward end of the ship, offering flexibility for cargo operations in congested ports. Many Great Lakes customers find the forward boom more advantageous to allow placement of in preferred areas for access at their docks.




The second EasyMax was delivered to Wagenborg and affiliated owners and taken into service under her official name: Máxima. Completed delivery was February 2021. Here is a link to the video of her launch last year:

Multipurpose Open Top, Box shaped/ Single-decker, incl. movable bulkheads. Ice Class 1A. Lakes/Grain/CO2 fitted. Vessel is equipped with a Ballast Water Treatment Unit (600m3/hrs)



Call sign P.D.V.Q.
IMO number 9882061
Built 2021
Shipyard Niestern Sander
Classification Bureau Veritas
Class notations I + HULL +MACH General cargo ship-heavycargo (tanktop 150 kN/m2, Tanktop (non-uniformal) 200 kN/m2) – occasional dry bulk cargo AUT-UMS, +SYS-NEQ-1, MON-SHAFT, ICE CLASS 1A, INWATERWAYSURVEY
Ice class Finnish /Swedish 1A
Port of registry Delfzijl
Flag Dutch

Main particulars

DWCC (summer) 13800 ton
Length over all 149.95 m
Breadth over all 15.9 m
Draughts 8.6
Air draft (in Ballast) 34.23
Depth (moulded) 12.2
Distance WL-HC in ballast 8.2
GT 8849
NT 4475


Cargo capacities

Total cubic feet capacity 625000 ft3 grain/bale


Hold #1

Dimensions 47.36 x 13.5 x 12.15
Luiken 47.36 x 13.5

Hold #2

Dimensions 64.38 x 13.5 x 12.15
Luiken 64.38 x 13.5

Electrical ventilaton

Holds are equipped with electrical ventilation, 6 air changes per hour basis empty holds, both holds are fitted with deh umidifier system. Vessel is equiped with Coops & Nieborg pontoon hatch covers. Vessel is also equipped with Removable ventilation trunks.

Tank capacities

HFO 510 m3
MGO 76 m3
Water ballast capacity 4740 m3
Fresh water 52.4 m3


11,5 knots – 9 mts/day These figures are about and based on abt. 8,30 m draft (in ballast)clean bottom, even keel, deep and currentles water, c alm sea and max wind force Beaufort 2/ Douglas 2 and maximum sea temperature 28/29 degrees Celsius, and shaft generator connected. Consumption in port abt. 1 mts MGO/day.

Fuel oil specification

VLSFO 0,5% ISO 8217:2010. MGO DMA 0,1% ISO 8217:2010. Within: ECA Area t/c operation to be responsible for sulphur limit compliance.


Main engine MAK 6M32C , 2999 kW at 1500 RPM
Reduction gear
Propeller Ø 4200mm CCP in Nozzle
Bow thruster 750 kW



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