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Key West, FL (AHN) - Decommissioned U.S. Navy warship USNS General Hoyt S. Vandenberg was sunk Wednesday morning 6 ? miles off Key West in the Florida Keys National Marine Sanctuary to become the world's second-largest artificial coral reef.
Retired U.S. Navy Warship Sunk In Florida Keys To Become World's Second-Largest Artificial Reef | AHN | May 29, 2009 (http://www.allheadlinenews.com/articles/7015300635 - broken link)
But would it surprise anybody if, 25 years from now, they find unexpected problems (maybe contaminants) as a result of doing this - and end up having to spend a couple million dollars bringing the ship to the surface and getting it out of there?
But would it surprise anybody if, 25 years from now, they find unexpected problems (maybe contaminants) as a result of doing this - and end up having to spend a couple million dollars bringing the ship to the surface and getting it out of there?
The Navy spends millions to decontaminate ships before they are sunk as artificial reefs. There's not much left but steel by the time they sink them.
Omaha Rocks they have been doing this with old ships quite successfully for many years now.
While on the topic of artificial reefs, coal fly ash is apparently also used to make them <gasp>. Doesn't specifically state how but I'd imagine as filler for concrete. Concrete with fly ash has a much longer lifetime than regular concrete.
Quote:
Other emerging applications of fly ash include the construction and sinking of artificial reefs, metal (aluminum and iron) extraction via direct acid leaching, and as a filler in paints and plastics. Examples of products which may contain fly ash include paints and undercoatings, auto bodies and boat hulls, PVC pipes, battery cases, bowling balls, utensils and tool handles, vinyl floor covering, and shower stal
It took an extra 18-24 months from the original timeline when they sunk the Oriskany because they had to deal with pretty much every possible environmental issue and possible source of contamination before they put her down.
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Yep they been doing this for awhile....This link has lots of info includeing vidieo of the Oriskany sinking... Artificial Reefs: May 2006
There've been a couple large ships sunk in the Chesapeake fairly recently, also. Adaptive re-use.
The Corps of Engineers is also using dredge spoil from Baltimore Harbor to rebuild Poplar Island as a bird sanctuary.
Omaha Rocks they have been doing this with old ships quite successfully for many years now.
While on the topic of artificial reefs, coal fly ash is apparently also used to make them <gasp>. Doesn't specifically state how but I'd imagine as filler for concrete. Concrete with fly ash has a much longer lifetime than regular concrete.
thats right We actually sell ask to several concrete companys as well as road building outfits......
Fly ash is very similal to pozzlanic volcanic "ash". Add lime and aggergate and you have concrete that sets underwater.
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thats right We actually sell ask to several concrete companys as well as road building outfits......
