WSDOT SR 99 Tunnels

Principal-in-charge: Chevy Chase, PE, SE
Structural Project Manager: Mike Maechler, PE, SE

Structural Elements:
Wireless antennas
Telecom equipment support

CG Engineering provided structural analysis for the addition of 16 new antennas within the existing SR99 tunnel. The antennas were designed to be flush mounted to the ceiling within 4 zones of the tunnel. Additionally, 2 cabinets were supported by new steel equipment platforms located in adjacent equipment rooms to each of the antenna zones. A stamped engineering report and stamped structural calculations were provided for submittal to the building department.