Last week’s snow dump reintroduced Minnesotans to ice dams, a common winter pest. Usually not noticed until it’s too late, ice dams are a ridge of ice that forms at the edge of a roof ...

the seepage of water through the rock strata under the dam. As far as we can learn, the work done upon the dam at this time in the way of investigation of conditions and of provision against ...

Concrete-Faced Rockfill Dam (CFRD): A type of dam that consists of a rockfill core covered with a concrete face to prevent water seepage. Terrestrial Laser Scanning (TLS): A technology that uses ...