- Role: Cost and Risk Verification Check and Expert Review Panel Member
- Client: Washington State DOT
- Construction Cost: $3.1 Billion\Technology: EPBM and Cut and Cover
- Geology: Soft Ground
- Dimensions: 58 ft (17.6 m)
- Length: 9600 ft (2.9 km)
- Depth: 20-50 ft (6-15 m)
Project Elements:
- Single-tube double-deck tunnel
- Two lane highways on each level with 50 mph design speed
- Cost and budget verification panel (3 people) prior to bidding project
- Expert Review Panel – annual report to state legislature and Governor’s office
- Cost and risk profile of project
- Status with respect to budget and schedule
