Dredging

Iron ore-carrying vessels don't do rapids, particularly when heading upstream. To get around them, structures called "locks" are built — sort of stairs for boats. Vessels float into one end, entry gates are closed and the level of water inside the lock is raised or lowered to match the level outside the gates at the other end.

Great Lakes Dredge & Dock Company's Rivers and Lakes Division was faced with sediment-filled ditches and pockets of connecting standing water on a large dredging project in Argenta, Ill. The contractor wanted to consider a new and more efficient approach than the traditional bucket.

Gradall extends the productivity of Series V excavators with the Telestick attachment, allowing for a boom reach to as much as 50 ft. Equipped with ditching, grading and dredging buckets as well as a grapple, the Telestick is ideal for cleaning canals, grading and shaping the edges of drainage ditches, cleaning out culverts and removing debris after severe storms and flooding.

The U.S. Army Corps of Engineers, Buffalo District has awarded a $2.1 million contract to Ryba Marine and Construction to conduct dredging of the federal navigation channel in Maumee Bay, located along Lake Erie in Toledo Harbor, in the city of Toledo, Lucas County, Ohio.

You need to be well grounded any time you start swinging tons of material at the end of a long boom. That need is even more true when you're working on a floating platform. No one understands that better than the engineering team at Great Lakes Dock & Material LLC (GLDM), one of the leading dredging and marine construction contractors on the Great Lakes.

Chatham, Mass.-based Outermost Harbor Marine (OHM) essentially self-performed a nearly $500,000 dredging operation to open a channel at its marina in Cape Cod's Chatham Harbor, a project that started on Jan. 29 of this year and was completed on March 29.

Dredging to deepen the shipping channel to the Port of Savannah has resumed after an 18-month pause, Col. Daniel Hibner of the Army Corps of Engineers recently announced as the second half of the $973 million expansion has started to get under way. This portion, which is making room for larger cargo ships, involves deepening a 40-mi.

Monitoring efforts are under way following completion of this season's dredging operations at Indiana Harbor and Canal (IHC) in East Chicago, Ind. It is one of the most polluted waterways in the Great Lakes area. Crews will treat water from the confined disposal facility (CDF) until freeze up, with the 2020 season scheduled for next spring.

In addition to causing serious damage to many communities in the Carolinas, Hurricanes Matthew (2016), Irma (2017) and Florence (2018) were responsible for considerable destruction to the beaches in several communities throughout South Carolina that rely on local, regional and national tourism.

Started in January 2015, the $973 million Savannah Harbor Expansion Project (SHEP) is on time and budget with the U.S. Army Corps of Engineers overseeing the initiative that is deepening the federally-owned channel from 42 to 47 ft. at low tide (54 ft.

Granite and Healy Tibbitts Builders Inc. announced that their joint venture team has been awarded a $27 million joint venture contract by the Naval Facilities Engineering Command Southwest for the construction of maintenance dredging at Piers 1, 3 and Paleta Creek at Naval Base San Diego.