Funding the state transportation system using climate commitment act revenues.

SB 5550 redirects revenues from Washington's Climate Commitment Act auctions to fund specific state transportation projects, including the I-5 Columbia River bridge replacement, US 395 North Spokane corridor, SR 520 bridge, and the Gateway freight project. It amends existing law to allow these climate act revenues - previously restricted from major road and bridge projects - to now support infrastructure that moves people, goods, and zero-emission vehicles. The bill specifies that $366 million in fiscal year 2025 auction proceeds must first go to the carbon emissions reduction account, with remaining funds allocated to transportation projects as listed. This changes how existing climate funding is used, directly affecting state transportation planning and project funding priorities.