The Northwestern railroad bridge over Rock river was completed

The evidence

• “P. Houston also helped frame our first wagon bridge, a trestle structure placed where the central bridge now stands ; he framed the first bridge over Turtle creek and also the railroad bridge (Northwestern) over Rock river, completed December 22, 1854, and in both cases was publicly commended for the thoroughness of his work.”

  1908-brown-rock-county/34a-biographical-1.md, Vol. 2, PDF p. 299 / book p. 798

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

  Grade A: Found on a page of one of our sources