Colleen

Colleen reef
Type:
artificial reef, tugboat
Built:
1952, New Orleans LA, USA
Specs:
( 92 x 25 ft ) 150 tons
Sponsor:
GPPCBA, Budweiser, GDF
Sunk:
Saturday August 3, 1996 - Axel Carlson Artificial Reef
GPS:
40°02.794' -73°59.350'
Depth:
80 ft
Hess

The Colleen was a canal tugboat that towed barges on the Erie Canal between New York City and the Great Lakes. She also helped dock ships in port.

Built in 1952, by Alexander Shipyard of New Orleans, Louisiana (hull #542) as the Rhea I. Bouchard for the Bouchard Transportation Company of Melville, New York. In 1952 the tug was acquired by the Moran Towing Company of New York, New York, and renamed Polly Moran. In 1958 she was acquired by Ira S. Bushey and Sons of Brooklyn, New York, and renamed Cardinal.

In 1972, the tug was acquired by the Kehoe Transportation Company of New York, New York and renamed Kehoe. However, the Kehoe Transportation Company later renamed the tug Colleen Kehoe. She was later acquired by the Mowbray Towing Corporation of New York, New York, and renamed Colleen. She was a single screw tug, rated at 900 horsepower.

The Colleen is a near twin to the Spartan. At about 60 ft depth, large holes in the roof make it easy to drop down several decks inside the wreck and still have daylight in sight above. Look for lobsters dug in under the edges of the hull, along with a great many Sea Bass. The rudder is cranked 90 degrees to one side, leaving plenty of room to swim through the gap where the propeller should be. At least one APC lies close by off her stern, upside-down, and a reef ball lies on the aft deck.

Colleen reef
Something unusual - the Colleen as she appears on an old-fashioned depth-finder trace, just minutes after sinking, with streams of bubbles rising from the wreck.
Colleen reef
A Reef Ball on the stern of the Colleen.
Colleen reef
Part of the wheelhouse.
Colleen reef
Inside the wheelhouse.


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An Explanation of Professor A.A. Buhlmann's ZH-L16 Algorithm

by Paul Chapman

Note to new divers and potential new divers:

This information is presented for general interest. Don't be scared off by what you see here - you don't need to learn any of this to become a safe and competent scuba diver. You will however need to understand dive planning.

The following is a summary of the decompression algorithm described by Dr A.A. Buhlmann in the fourth edition of his book Tauchmedizin ( diving medicine ) published in 1995 ( only in German. ) the book contains a considerable amount of other information and is published by Springer-Verlag ISBN 3-540-58970-8. Rumor has it that at the time of writing ( November 1999 ) an English translation is being prepared for publishing, so hopefully, in due course, this document will become redundant.

The algorithm is simply a "recipe" for modeling the behavior of inert gases, which diffuse in and out of our body tissues when breathed under varying pressures. The intention is that if the recipe models the actual processes in our bodies accurately enough, it can be used to plan dives ( and other pressure exposures ) with a view to avoiding decompression sickness.

Printed from njscuba.net