New Jersey Scuba Diving

Bits & Cleats

towing bit
A huge towing bit in use on a turn-of-the-century tugboat. Notice the smaller deck cleat and the steam-powered capstan in the foreground.
towing bit
The bow towing bit in front of the wheelhouse on a more modern tugboat - the G.A. Venturo.
towing bit
Towing bit on the Ingrid Ann
towing bit
A large towing bit, fallen over in the sand on the Riggy wreck.
towing bit
A similar but even bigger towing bit upended on the "Middle barge". Such an artifact is a sure sign of a schooner barge wreck.
towing bit
The two tops of the towing bit are evident in the bow of this schooner barge. A similar arrangement would be found in the stern. On barges, the bits were mounted lengthwise, whereas on the tugboat above it appears to be mounted transversely.
towing bit
An enormous iron mooring bit on the Oregon.
towing bit
Cast-iron mooring bit recovered from the Delaware using 500-pound lift bags. The casting proved to be hollow, and not as heavy as you might think, perhaps 250 pounds. The same article would be called a bollard if installed on land.
towing bit
... with a lot of cleaning-up and anti-corrosion paint ...

Contamination Risks of Artificial Reefs and Shipwrecks

USS Algol

by Michael C. Barnette

PCBs

Poly-chlorinated biphenols (PCBs) and heavy metals ( Pb, Cu, Ni, Cd, Zn, Ag, and Hg ) have become an issue of concern with artificial reef development, as popular reef building materials ( e.g., ex-Navy vessels ) may contain quantities of these toxic materials that may potentially be transferred through the food chain. This transference, or bioaccumulation, may have unforseen effects on the marine environment and, ultimately, human health through consumption of contaminated finfish and shellfish harvested from these reefs. However, thousands of ships have met their demise without the environmental cleansing and preparation that artificial reefs require, perhaps posing a potentially greater health risk to consumers and divers.

More: Contamination Risks of Artificial Reefs and Shipwrecks ...

Disclaimer:

I make no claim as to the accuracy, validity, or appropriateness of any information found in this website. I will not be responsible for the consequences of any action that is based upon information found here. Scuba diving is an adventure sport, and as always, you alone are responsible for your own safety and well being.

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