Partial funding for design and construction was provided by House Bill 2017, Keep Oregon Moving. The Oregon Legislature authorized $30 million per year in spending for the project, beginning in January 2022, based on an estimated cost of approximately $450 to $500 million (in 2017 dollars).
To meet Section 27c requirements of House Bill 2017, the project team provided a cost-to-complete report to the Legislature in January 2020. The report concluded that the project could cost $715 million to $795 million in 2025 dollars (2025 is the projected midpoint of construction). Inflation represents nearly 50% of the total cost change from earlier estimates that were based on 2017 dollars. Other costs stem from added construction elements, utility reimbursements, property acquisitions and higher contingency for unplanned costs.