Recovery, Reuse, and Recycling of Debris From the ...
Transcript of Recovery, Reuse, and Recycling of Debris From the ...
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Recovery, Reuse, and Recycling of Debris From
the Demolition of the Grace and Pearman Bridges
at Charleston, South Carolina
Fred Cooper, P.E.
Earth Tech AECOM
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Three Bridges Viewed From the Charleston Side
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Work started with removal of the Grace off-ramp
between King and Meeting Streets.
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Ken Canty pointing out that supporting columns are
numbered to ensure removal in the correct order.
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Debris being separated for reuse and recycling
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FACT
SPECIAL RECOGNITION
Special recognition is given to Mr. Frank Starmer
who is responsible for most of the spectacular
deconstruction photographs in this presentation.
The photos are used with Mr. Starmer‟s permission.
http://oldcooperriverbridge.org/
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Recovered rebar being separated, and bunched.
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„Claws and Jaws‟…
Carefully grasping a bridge girder…
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…and „gently‟ working the girder down..
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…to the ground. Awesome!
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FACT
Earth Tech AECOM
Designed reconnection of city streets and
I-26 / US 17 interchange improvements,
Managed prime contractor‟s compliance with
Joint State and Federal environmental permit for
temporary impacts to wetlands,
Designed the „created wetlands‟ at Waterfront Park
in Mount Pleasant.
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Removing the roadway from the Pearman,
leaving only the steel skeleton near SPA.
Looking toward Charleston Looking toward Mt. Pleasant
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Grace‟s steel span. Bare steel of this nature
can be easily recycled by the steel industry.
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NOW THAT‟S A CLAW!
BIGGER IS BETTER, AND THESE GUYS
KNOW HOW TO USE IT.
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Taking a safety break, …because a
thunderstorm can be a shocking experience.
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The final layer of roadway is „finally‟ removed,
and now…
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On to the Reinforced Concrete Piers, the
“Breakfast of Champions”
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Hammering out boxed girders
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A „Graceful‟ Decent to Drum Island
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SURREAL STONEHENGE?
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From Surreal to Surgical…
Careful „Reverse Construction‟ Over State Ports
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Inland Area Cleanup…State Ports Authority, Town
Creek, Drum Island, and the Ravenel Bridge in the
Distance, and…
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Remaining Piers in Shipping Channel June 1, 2006
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„About Those Piers‟…
The contractor must demonstrate that all parts of the Bridges
have been removed down to or below elevations required,
and that the waterways have been cleared to the satisfaction
of Charleston District US Army Corps of Engineers (USACE)
Commander.
Q: How are we to satisfactorily document removal of piers
and miscellaneous debris in the Cooper River?
A: Provide Hydrographic Surveys of debris field including:
1. Bathometric contour mapping,
2. Side scan sonar survey, and
3. Mapping by magnetometer.
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Topographic Map - Cooper River Bottom
West of Shipping Channel
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Topographic Map - Cooper River Bottom
Town Creek
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Magnetic Intensity Map - Cooper River Bottom
West of Shipping Channel
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Magnetic Intensity Map - Cooper River Bottom
East of Shipping Channel
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The Mighty Jay Cashman Sails
to recover the remaining demolition debris
from the floor of the Cooper River
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Debris…
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And more debris… Photographs document
the work…about 102 debris removal photos.
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PROJECT RECORDS
240,292 tons of reinforced concrete placed in
12 off shore artificial reefs,
5,286 tons of debris used to create new artificial
reef adjacent to a new observation pier at
Mount Pleasant, and
24,668 tons of structural steel was recycled,
TOTAL = 270,246 tons Vs. 261,000 tons bid.
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HOW TO BUILD A REEF FROM
RECOVERED DEMOLITION DEBRIS?
A girder is being removed here over
East Bay Street at night.
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Note Claw at Right. This girder is being divided
into smaller segments for easier transportation.
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On Board the reef crew‟s boat, „Jay Michael‟.
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View from the Jay Michael heading out to the designated reef, and
passing material being loaded onto a barge for another reef site.
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DESIGNATED REEF DEPLOYMENT LOCATIONS
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Course tracking with a small GPS to document
our consistent outbound and inbound routes.
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About an hour later - our reef destination – with Brad's
345 and Rick's 750 positioned on the barge at the site.
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As we approach, we can see that twin
“jaws” are in sleep-mode.
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Rick and Brad awaken their machines, …the “jaws”
stretch out, as if to yawn, “good morning”, and then
the action starts…
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King of the Hill!
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Jaws „gently‟ snaps up a reef segment…
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…and gently tosses it…
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Placing the reinforced concrete debris at the reef site.
(These guys make it look easy, and fun.)
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SPLASH!
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It takes two for the big tango…
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Gittin‟ Busy!
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Another surreal scene, “ravenous jaws and claws toss parts
from large civil structures into the ocean”.
(Kinda-like old school Sci-Fi!)
• Finishing up - a short conversation and then
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After finishing up: first a short conversation and then…
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…a little R&R as the Jay Michael heads home.
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Nearing port and passing by a sailboat… while the
sun sets…a picture made to order.
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The sun says, “good evening”... we are home.
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ARTIFICIAL REEF CONSTRUCTION PROJECT
Largest reef construction project in South
Carolina‟s history based on tonnage.
Largest number of deployments (50), and
Enhanced the largest number of reef sites of
any project in South Carolina‟s history.
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DNR Photo: Reef Fish and Invertebrates find a home
in our recovered concrete and rebar debris.
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Another DNR Photo: Our Recovered Concrete and Rebar
make a good home for marine life. A good homes makes for
happy fish, and that makes us happy too~!
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FACT
SIMULTANEOUS DE-CONSTRUCTION OF
THE GRACE AND PEARMAN BRIDGES
Bid for design and deconstruction included 261,000 tons of
reinforced concrete and structural steel to be recovered and
reused or recycled.
Successfully completed by Jay Cashman, Inc. /Testa Corp., A
Joint Venture (the Joint Venture), and their subcontractors,
one being Earth Tech AECOM.
Demonstrated that recovery, reuse, and recycling of
demolition debris can reduce costs and benefit the
environment.