Washington Revised Code Title 47. Public Highways and Transportation § 47.29.050. Eligible projects

(1) Transportation projects, whether capital or operating, where the state's primary purpose for the project is to facilitate the safe transport of people or goods via any mode of travel. However, this does not include projects that are primarily for recreational purposes, such as parks, hiking trails, off-road vehicle trails, etc.; and

(2) Facilities, structures, operations, properties, vehicles, vessels, or the like that are developed concurrently with an eligible transportation project and that are capable of (a) providing revenues to support financing of an eligible transportation project, or (b) that are public projects that advance public purposes unrelated to transportation.