Civil Site Development

Located in the small town of Wishram, WA, the Wishram School Wall and CTE Replacement project involved constructing critical building updates to the town’s only school. With the north concrete retaining and structural wall of the school failing, a full temporary wall and new concrete retaining/structural wall were required to ensure the longevity of the school, along with an addition to the school’s career and technical education (CTE) classroom.

To replace the failing school retaining wall, our team followed a 3 phase process to ensure the building maintained its stability throughout construction. The first phase included building a temporary structural wall 12 feet from the inside of the existing wall to provide support for the trusses throughout construction. During the second phase, crews removed the 25 foot tall existing concrete retaining wall that ran along the entire north side of the school. The third phase included the construction of the new north concrete wall utilizing friction piling, all associated site work, construction of retaining walls along the northern slope, and construction of an addition to the CTE classroom.

Overall, this led to over 7,000 cubic yards of wall excavation and backfill; 1,400 square feet of concrete wall removal and replacement with over 1,800 square foot of footing subgrade preparation and concrete footings; 35,000 square feet of final grading; 600 square feet of ultra block placement; ten rock anchors; 99,500 lbs of rebar installation; construction of a new gymnasium floor; and storm, water, plumbing, and electrical upgrades.