A cofferdam is an enclosure built within a body of water to allow the enclosed area to be pumped out or drained. This pumping creates a dry working environment...

wall.) Common uses for cofferdams include the construction and repair of offshore oil platforms. In such cases, the cofferdam is fabricated from sheet...

of debate. The ship lay at the bottom of the harbor until 1911, when a cofferdam was built around it. The hull was patched up until the ship was afloat...

Kromfonteinlower (Wilge) Cofferdam is a rockfill type dam located on the Steenkool Spruit, near Witbank, Mpumalanga, South Africa. It was established...

two cofferdams were constructed. Work on the upper cofferdam began in September 1932, even though the river had not yet been diverted. The cofferdams were...

American River through a tunnel and the construction of a massive earthen cofferdam. Following a nearby earthquake and the discovery of an unrelated seismic...

A cofferdam created to allow for dewatering of an area...

Upon curing, this placement allows the 50,180-square-foot (4,662 m2) cofferdam to be dewatered approximately 26 feet (7.9 m) below sea level to allow...

east cofferdams. The west cofferdam was 2,000 ft (610 m) long, 50 ft (15 m) thick and was constructed 110 ft (34 m) above the bedrock. The cofferdams allowed...

water tunnel while Carver continues Simon's challenges. Simon blows up a cofferdam to flood the tunnel, but McClane escapes and reunites with Carver. Surviving...

metres (92 ft) MSL and lowest water level is 10.9 metres (36 ft) MSL. Two cofferdams are planned, one up to 41 metres (135 ft) MSL, to facilitate faster pace...

descended almost vertically, probably rotating as it fell. Empty tanks and cofferdams imploded as it descended, tearing open the structure and folding back...

the surface. This watertight extension is a cofferdam. Although they are temporary structures, cofferdams have to be strongly built, heavily stiffened...

the water was 3 m deep. The cofferdam later proved to be one of the most difficult aspects of the plan. The cofferdam Kistdam was originally a circle...

towards the stern of a small-decked vessel that houses the rudder controls. cofferdam An insulating space between two watertight bulkheads or decks within a...

water would begin to be drained from inside the cofferdam. Since construction of such a large, deep cofferdam had not been attempted before, the Corps said...

in 1947 and masonry construction on 15 April 1949. With the help of a cofferdam constructed earlier, the foundation excavation was continued even during...

When a dam is constructed on a small river, engineers usually create a cofferdam (or an enclosure) within a river and drain the water out of it to facilitate...

Brown and Wright. The initial main work was construction of a large cofferdam surrounding the worksite. The dam was constructed of three rows of wooden...

beach accesses to construct requiring use of a quick-drying concrete or a cofferdam to protect them from tidal water during the concrete curing process. Concrete...

pre-cofferdam. The purpose of the pre-cofferdam is to channel the river through diversion tunnels, ensuring the safe construction of both the cofferdam and...

Kromfontein Middle Cofferdam is an earthfill type dam located on the Steenkool Spruit, near Witbank, Mpumalanga, South Africa. It was established in 1990...

maintenance purposes. The opening was protected by a cofferdam approximately 3 feet (0.91 m) high. The cofferdam was intended to prevent water from accidentally...

1970, a cofferdam was built upstream from the construction site to hold back Mississippi River waters. Due to a structural inadequacy, the cofferdam washed...

penetrated the cofferdam and exploded. Therefore, the IJN thought it prudent to fill the empty spaces between the tanks and the cofferdam with 2,400 metric...

cables hang from towers that are attached to caissons or cofferdams. The caissons or cofferdams are implanted deep into the bed of the lake, river or sea...

purposes starting in 1774. The modern embankment may be constructed within a cofferdam: two parallel steel sheet pile or concrete retaining walls, anchored to...

the second hurricane. Rapid repairs and extensions to the dikes, new cofferdams, and pumping were used to end the flooding; however, house sales halted...

steel pilings were placed in the riverbed to create a watertight cofferdam. The cofferdams for the bridge were the largest ever built at the time. In early...

reportedly been seen. Although the group found the remains of an 1850 cofferdam, no evidence of anything else was found. Bowdoin later examined the "stone...