Oroville – Kiewit Infrastructure West Co. said on Wednesday that construction of the underground wall below the Oroville Dam emergency spillway completed in early March. The 1,450 feet long wall, ...

Adaptability was essential to rehabilitate this century-old, high-hazard dam, with challenges ranging from severe winter weather that delayed concrete placement and excavation to rock elevations that ...

The contract is to construct a secant pile wall designed for ground retention and stabilization of the existing Montgomery dam prior to building a new lock chamber at the facility. “We are excited for ...

Late in July, crews completed the up-to-85-ft-deep excavation for the 850-ft-tall Rainier Square Tower after workers installed a secant pile foundation wall, supported laterally under the neighboring ...