patterns. When asked the purpose of their trips, respondents reported that for weekend trips 21% were for recreational, 21% for social, 19% for personal, 18% for work, 6% for business, and 4% for medical reasons. For weekday trips 33% were for work, 17% for personal, 14% for business, 11% for medical, 9% for social, and 8% for recreational reasons. Sources Burows, Alyssa. "Bulley, William A. (b. 1925)" in the HistoryLink.org Cyberpedia Library, Essay 7289. March 28, 2005 (retrieved July 24, 2006). Burows, Alyssa. "William Adair Bugge assumes duties as Director of Highways on July 1, 1949" in the HistoryLink.org Timeline Library, Essay 7256. March 5, 2005 (retrieved July 24, 2006). Hamilton, Charles. "Hood Canal Bridge opens on August 12, 1961" in the HistoryLink.org Timeline Library, Essay 7280. March 17, 2005 (retrieved July 24, 2006). Hood Canal Bridge East-Half Replacement Closure Mitigation Plan – Preferred Options. Washington State Department of Transportation and Bucher, Willis & Ratliff Corporation. February 2000. Hood Canal Bridge – A Floating Lift Draw Bridge. Michael J. Abrahams, Parsons Brinckerhoff Quade and Douglass, Inc. 1982. Heavy Movable Structures Symposium Notes External links The SR 104 Hood Canal Bridge Project Frequently Asked Questions The Washington State Department of Transportation Hood Canal Coordinating Council Bridges completed in 1961 Bridge disasters in the United States Bridge disasters caused by wind Transportation buildings and structures in Kitsap County, Washington Transportation buildings and structures in Jefferson County, Washington Road bridges in Washington (state) Transportation disasters in Washington (state) Former toll bridges in Washington (state) Moveable bridges in the United States Pontoon bridges in the United States Retractable bridges