 The Pacific Highway between Everett and Marysville, named the Vernon Road, was paved in 1916 and paid by a county road bond issue.The highway was later signed as in 1923, which became the Washington segment of (US 99) during the creation of the United States Numbered Highways in 1926.Since the bridges over the Snohomish River delta weren't complete at the time of planning, US 99 used present-day , and Sunnyside Boulevard to connect Everett and Marysville.