The work includes DREDGING OF ROUGHLY 6,500 CY OF SEDIMENT MATERIAL, BY MECHANICAL METHOD, USING A CLOSED ENVIRONMENTAL BUCKET, AND DISPOSAL OF DREDGED MATERIAL BY DUMP SCOW
TO THE CONFINED AQUATIC DISPOSAL (CAD) LOCATION IN CONFORMANCE WITH US ARMY CORPS OF ENGINEERS (USACE) REQUIREMENTS.
In addition, Manitowoc Marine Group has also received a contract from Great Lakes Dredge & Dock to build a 7,100-cubic-yard dump scow
for this worldwide dredging contractor.
The group also recently received a contract for construction of a split-hull dump scow
from Great Lakes Dredge & Dock.
About 300 such barges have been built by Gunderson in recent years, including deck cargo barges, hopper barges, roll-on/roll-off railcar barges, dump scows
, Panamax size vessels and double-hull oil barges.
Great Lakes has also contracted with BAE Systems in Mobile, Alabama to build two new high-capacity material dump scows
that will be delivered in 2013 with an option to build two additional barges also with delivery in 2013.
8 million contract for two 5,000 cubic yard dump scows
for a commercial customer.
Other projects include oil and deckcargo barges, chemical barges, dump scows
, military gunboats, hydraulic dump barges, dredges and the world's largest roll on/roll off railcar barges.
The company is currently constructing two dump scows
and a trailing suction hopper dredge in Mobile with scheduled deliveries in 2013 and 2014 respectively.
In addition to the two PSVs for GulfMark, the company is building a 356 feet long dredge, which is scheduled for delivery in mid-2014 and two 295 feet long dump scows
Construction on the 262-foot-long dump scows
is expected to start in October.
For example, the permit requires that all dump scows
be equipped with "black boxes" which contain positioning equipment protected in tamper-proof receptacles.