The 4th Street Bridge located at 4th Street and Centennial Park, Canon City.
“The oldest bridge still crossing the Arkansas river in all of Colorado is located next to Centennial Park and fourth street. The Bullin Bridge company of Minneapolis, Minnesota would build the fancy new bridge connecting South Cañon to Cañon City in 1891. The following year the company would relocate to Pueblo, Colorado, open a branch in Portland, Oregon and build bridges through out the western United States.”
From Christopher Jenkins on the Growing Up in Canon City, Florence, and Fremont County FB page. If you get a chance, follow this page as there are always interesting history lessons.