CAMP WASKOWITZ
WATER TOWER RENOVATION

The existing redwood water tank at Camp Waskowitz was built in 1980. The tank holds 260,000 gallons of water. The wood walls had started to deteriorate at the base and the ring that sealed this connection to the concrete slab was leaking approx. 50 gallons per minute. The tank was renovated by the installation of a new concrete tank inside, using the wooden tank as the form work. The new reinforced concrete slab floor foundation was in place, and the walls were reinforced shorecrete. This option allowed for the reuse of most of the exsiting tank and had the lowest impact on the environment. This also sped up the repair by eliminating all of the environmental permitting required for a new site to be cleared. This method saved the School District as much as $56,000 and shortened the time frame of the actual replacement. A quick repair was essential because the tank was utilized for fire protection and the leak was eroding soil near Interstate 90.

HIGHLINE HIGH SCHOOL
CAFE AND GYM RENOVATION

CG Engineering provided a structural assessment of this pre-cast concrete building exhibiting signs of deterioration in the concrete. Exterior columns have spalling concrete up to ¼” deep for their full height on faces exposed to the weather. Reportedly, rusty water was coming through the roof slab during rain events. There was some concern that the roof slab was compromised and could extend inside the building. There were some signs of settlement of some of the exterior columns. CG Engineering developed recommendations for repair and estimates of the quantity of repair work necessary. Structural design of repairs to the existing concrete columns and roof that were exhibiting signs of deterioration was provided.

EDMONDS SCHOOL DISTRICT
ASPHALT ASSESSMENT

The CG Engineering civil engineering staff worked with Edmonds School District Facilities to provide solutions for asphalt playground repair and/or replacement. A civil assessment and site improvement plan considering condition of pavement, sub grade, drainage, turf renovation, irrigation, retaining wall system, and fencing was completed for two elementary schools. Once the site improvement plans were reviewed, budgetary cost estimates suitable for capital planning were prepared for each site. CG Engineering civil engineering staff monitored each site as the process progressed through completion.