WSP USA Share: Acoustical/Air/Noise/VibrationArchitecturalCivil EngineeringCivil General MunicipalConstruction ManagementEnvironmental EngineeringGeotechnical EngineeringHydrology/HydrogeologyMechanical EngineeringPlanningStructural EngineeringTransportation PlanningUtilities/EnergyWater/Wastewater WSP USA Visit Website 999 Third Ave Ste 3200 Seattle, WA 98104-4019 (206) 382-5200 (206) 382-5222 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.