Grays Harbor County Courthouse Seismic Renovation

  • Location Montesano, WA
  • Client Grays Harbor County
  • Full-Court Quake

    Multiple seismic retrofit solutions after 2 earthquakes damaged the Courthouse.

  • Take a Quake Break

    40 days from quake to a restored Courthouse.

So the Court can remain in session. After two earthquakes damaged the Grays Harbor County Courthouse, the County needed to repair/retrofit the historic structure so its staff and visitors would remain safe and the building could be restored to its original grandeur. Reid Middleton’s engineers performed post-earthquake seismic evaluations after both earthquakes. The emergency seismic retrofit design had minimal visual impact, achieved by including steel-braced frames, wall and diaphragm strengthening, and innovative fibrewrap composite wall strengthening, non-structural component bracing, and exterior stone masonry anchorage. Despite extensive earthquake damage and retrofit repairs, personnel were able to return to work in 40 days. The historical Courthouse is now equipped to better withstand future earthquakes.