The completed I-5/SR 509 corridor enables a direct connection between the Duwamish/Seaport Harbor area of the Port of Seattle and the Green River Valley, which hosts the second largest warehouse distribution complex on the West Coast. Approximately one-third of the trucks currently forced to access I-5 would have a more direct route in and out of a valley that:                                                                                                                                                                                                         

• Includes over 100 million square feet of manufacturing and distribution space.

• Includes an annual payroll of $2.8 billion.

• Generates $8 billion in annual taxable revenue (third highest in Washington state).

• Is responsible for 12 percent of Washington’s gross domestic product (GDP).

With over $86 million in prior investments in right-of-way, project design, and environmental analyses/mitigation, the cost to complete the initial phase is estimated at $820 million. Detailed tolling studies show that toll proceeds for this project could generate approximately $100 million.

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