Foundation Replacement and Soil Remediation - Mt Rainier, WA

The work performed under this contract consisted of installation / replacement of the foundation and hearths of a historic cabin within Mount Rainier National Park. Along with the foundation and hearth replacement, the project also included removal of diesel contaminated soil from under the cabin, followed by disposal of this soil at an approved facility.

Details in the Scope of Work for this project included careful preparation for jacking and shoring of the building 3 feet above grade, installation of beams and cribbing, followed by shoring up of the building and removal of the jacks. The of diesel-contaminated soil was then removed from under the cabin and replaced with clean fill, as well as removal and replacement of the visqueen barrier located in an area adjacent to the building. Field and laboratory sampling results from the contaminated soil were supplied to the National Parks Service, followed by disposal and treatment receipts. The project was completed with the securing of the building onto the newly installed foundation and hearths.

Project Performance

Located in one of Washington States' most prized National Parks, this project was very specific in unique demands for the process in which the work was to be accomplished. The crew was not allowed to establish a work camp within the park, and all work was centered around preserving the park's natural features, in a way least inconvenient to the park. This included erecting temporary barriers to protect all surrounding trees and natural areas, and excavation was planned to avoid disturbing critical tree root zones. Despite these unique challenges, the project was a success.