Deletion of Tulip Viaduct

Comment: Notability clearly established by many mentions in books and articles.  See in particular http://books.google.com/books?id=0xciRjGU1PsC&pg=PA112&dq=%22tulip+trestle%22.  Meets the |general notability guidelines
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)