 The highway runs east into downtown Marysville on 4th Street, crossing over a section of the BNSF Railway (which also carries Amtrak's "Cascades" passenger trains) near Comeford Park and the city's landmark water tower.SR 528 then passes north of a shopping center and intersects State Avenue, the northernmost section of SR 529 and a former section of U.S. Route 99 (US 99).SR 529 continues south from Marysville over the Snohomish River delta to Everett and Naval Station Everett.