Page 16: of Maritime Reporter Magazine (September 1985)

Bath Iron Works-Portland drydock

Shiplift/Drydock (continued) ing and pumping system of the pon- toon.

The wing walls, which house more than 28,000 square feet of potential office and shop space, are 48-feet high, 18-feet wide, and 101-feet long. The distance between wing walls is 122 feet.

In the assembled dock—with three-foot spaces between sec- tions—the wing walls of the individ- ual pontoons are connected with welded plates. This creates two con- tinuous box girders extending the full-length of the dock, while it also provides longitudinal moment strength.

To be devoted primarily to the repair and inspection of mobile off- shore drilling units and production facilities, the drydock contains electrical generating equipment, utility capacity, and cranes, and is equipped with machine, carpenter, and electrical shops.

The sectional dock can be config- ured to provide a clear docking area of either 413 by 362 feet or 829 by 122 feet, depending on the size and shape of the incoming vessel. This unique flexibility will accommodate jackup rigs, semisubmersibles, sub- mersibles, and drillships.

The U.S. Navy surplus drydock, built during World War II, was transported earlier this year from

Pearl Harbor to Bethlehem's Beau- mont Yard, where it was refur- bished and modified.

CRANDALL DRY DOCK

Circle 84 on Reader Service Card

Crandall Dry Dock Engineers,

MAIN IRON WORKS, INC.

REPAIR SERVICE

SERVING TUGS, PUSHERS, TOWBOATS, CREWBOATS

SUPPLY BOATS, INLAND & OFFSHORE BARGES 3500 Ton Dock 1500 Ton Dock 1200 Ton Dock 850 Ton Dock 300 Ton Dock 200' x 100' 160' x 80' 140' x 60' 60'x 150' 50' x 80' 90' Between 70' Between 52' Between 50' Between 40' Between

Wing Walls Wing Walls Wing Walls Wing Walls Wing Walls

HISTORY

Founded in 1948, Main Iron Works, Inc.'s current facilities are available for construc- tion of new vessels ranging in size from 45' to 250' in length. Dry docking and a full range of repair services are also available, includ- ing a complete machine shop-facility, sand- blasting and painting services

With over thirty years experience and our record of service to the towing industry.

Main Iron Works, Inc. is ready to serve the needs of our past, present and future clients

GENERAL SERVICES

Air control mechanics

Electrical repairs, trouble shooting

Hydraulic mechanics

Piping and plumbing repairs

Sandblasting and Painting

Complete machine shop service

A.B.S. approved for stainless steel

Cladding on main shafts

Complete woodworking shop

CONTACT:

LeRoy Molaison • Henry Brunet

Harvey Landry • Wayne Piazza (504) 876-6302 • (504) 525-4020

P.O. Box 1918 • Houma, LA 70361

Five Dry Docks: 300-Ton Capacity 850-Ton Capacity 1200-Ton Capacity 1500-Ton Capacity 3500-Ton Capacity

Machine Shop:

Lathes: Capacity in feet - 36 Feet

Swing in Inches - 30 Inches

Wet Slips:

Three slips available for your boats or barges to tie up while repairs or supplies are being completed.

Shaft Storage Rack:

To avoid costly delays in waiting for transport of shafts, we provide our cus- tomers storage for their spare main shafts and rudder shafts.

Inventory:

Along with our parts inventory, we keep a stock of steel plates, pipe, angles, flat bars, and channels, all American Bureau of Shipping approved.

We also have a supply of forgings and bar castings which enable us to supply your needs efficiently.

All of the services listed above are avail- able on a 24-hour basis, seven days a week.

Quotations and price schedules are avail- able upon request

Location: 50 Mile Marker, ICW, Houma, La.

Crane Service: 100 Ton Fixed Stiff leg for Offloading and

Loading Supplies.

The Most Rugged and Accurate

Monitor of OU-in-Water in the Industry

Applications include monitoring of:

Bilge water discharge, boiler feed water, condensale returns, cooling systems for high-speed diesel engines and on-shore run-off water.

MODEL #BA-200 • Self Cleaning—Even #6 Oil

On Line Sampling • Threshold Adjustable

All Wetted Parts Corrosion Resistant • Relay Outputs to Your Requirements • Self Test • Optional Digital Display arm

Alarm and Monitor Oil-ln-Water Content

For more information call or write:

Engineering and Instrumentation Division

Biospherics Incorporated • 4928 Wyaconda Road (301)770-7700

Rockville, Maryland 20852

Crandall-designed 1200 ton railway dry dock. 18

Circle 127 on Reader Service Card Circle 113 on Reader Service Card

Maritime Reporter/Engineering News