Once the tremie was placed, crews then pumped water out of the cofferdam in order cut the concrete piles to a uniform height. This allows for pile cap formwork to begin, which will create a stable ...

To be sure we didn't disturb their foundations as we built temporary sheet-pile cofferdams for the shafts, we used the ABI unit with an hydraulic attachment to smoothly press the sheet piling into the ...

Because a sheet pile cofferdam was being used to isolate the foundation construction from the river, the engineers made use of what would otherwise have been a temporary back wall of the cofferdam ...

Temporary sheet pile cofferdams will enclose the work area. Work will begin in the section of the river closest to Manhattan and move westward toward the Hudson River’s navigation channel ...

Contractors will begin installing a temporary cofferdam around a barge stranded on the Columbia River on Friday, the Coast Guard announced Wednesday.

After a round of sand-blasting, the steel sheet-pile is ready for a special coat of marine paint. Each stretch of bulkhead repair takes several days and the contractors move the cofferdams and ...

Davy Crockett Project Complete Workers last week removed the final piece of the metal sheet pile cofferdam from the barge Davy Crockett work site on the Columbia River near Camas, Wash. This ...

The cofferdam sheet pile structure adjacent to the shaft location (above the shaft in Figure 3) was for construction of a new lift station for the existing plant, and the cofferdam below the shaft ...

The tunnel has been excavated using a dry cut and cover technique, using a sheet pile cofferdam. “We built a cofferdam in the sea and isolated the area in which the tunnel will be built. Then we ...

The project team designed a 45-ft-deep sheet pile cofferdam to protect the area while crews built the two penetrations. Crews drilled perimeter holes, then cut through with diamond-bladed wire ...