The 1950 Tacoma Narrows bridge in chapter
47.17 RCW made a part of the primary state highways of the state of Washington shall, upon completion, be operated, maintained, kept up, and repaired by the department in the manner provided in this chapter, and the cost of such operation, maintenance, upkeep, and repair shall be paid from funds appropriated for the use of the department for the construction and maintenance of the primary state highways of the state of Washington. This section does not apply to that portion of the Tacoma Narrows bridge facility first opened to traffic after June 13, 2002.