Costco Logistics DDS
Civil Engineering, Land Surveying, Landscape Architecture, Industrial | 1.1 million sf, 79 acres
Costco Logistics DDS is Costco's largest regional distribution center. Located in Tumwater, WA, the warehouse sits on 79 acres and is 1.1 million square feet. The center offers 175 parking spaces, 418 trailer spaces, and 129 dock doors. Barghausen partnered with CRG to provide civil engineering, land surveying and landscape architecture design services for the site.
This project had a unique start due to the site being culturally significant to the local Native American tribe. Our team put together a 3D relief map and depths of all proposed excavation areas so that exploratory borings could be taken before work commenced. These efforts were to ensure no artifacts were present on the site.
Due to groundwater issues on the property, our team worked closely with the City of Tumwater and Terra Associates to design a stormwater solution. The project required onsite infiltration, but the city standards restricted groundwater levels where the infiltration would be placed. The groundwater could not be raised more than six inches at the property line. Due to the jurisdictional requirements, we needed to locate the infiltration at the middle of the site. The catch? This is where the proposed building would be located. To resolve this challenge, our team placed the infiltration gallery under the building pad, with a series of detention ponds around the perimeter of the site. Our team decided to place an infiltration gallery under the building pad then place a series of detention ponds around the perimeter of the site. The ponds will temporarily hold stormwater and slowly release it to the gallery under the building.
The site had an existing shallow sewer system which required the new sanitary sewer onsite to be pumped along with a large portion of the new main road. Frontage improvements included building about a quarter mile of new road for Kimmie St and improving about half a mile of SR 121 (93rd Ave). The Kimmie St improvements included new pavement and utilities including storm drainage, new water main, sanitary sewer gravity and force main, electrical and communication conduit, street lighting, landscape, sidewalks and driveways. The 93rd Ave improvements included widening the existing road section, restriping and installing new signals, lighting and storm drainage. We coordinated with TENW for the lighting and signal work.