During this phase the contractor will grade the site to make it level, and begin digging out the area for the station. The excavation for the station is approximately 400 feet long, 100 feet wide, and 60 feet deep. All of the excavated dirt (also known as spoils) will be hauled away in trucks. The trucks will travel along the haul route identified by the City of Seattle - leaving the site they will travel west on Olive Way to I-5 and coming to the site they will travel east up Denny Way. The final disposal site for excavated material will be determined by the contractor. The majority of the hauling during this phase will take place during the daytime and, at times, possibly extending into the evening.
Once the excavation reaches the bottom of the station (approx. 60 feet down), a concrete slab 10 feet thick will be poured at the bottom of the excavation.
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