Prince George, B.C. - The cofferdams constructed along the stretch of the “twin” side of the Simon Fraser bridge, are under water and   the River will have to come down before they can be pumped out.

 

A cofferdam is an enclosure built beneath the water, to allow water to be displaced by air for the purpose of creating a dry work environment. Cofferdams are often used during the construction of bridges, and oil rigs. They are normally removed when the work is complete.

 

Opinion 250 is trying to get some information from Surespan, the company constructing the Simon Fraser “twin”, to see what impact, if any, the rapid rise and flooding of the cofferdams will have on the timing or costs of the bridge construction.