Sylvan Island Railroad Bridge
A Statement of Significance
Written by Nathan Holth
This bridge is a nationally significant bridge as an exceedingly rare surviving example of an early generation metal railroad bridge. Nearly all of these earlier generation railroad bridges were lost due to a need for stronger railroad bridges which occurred around the turn of the 20th Century. The bridge is further significant for its cast iron connection assemblies, use of Phoenix columns for the end posts and most vertical members, and the Whipple truss configuration. The bridge was moved here in 1891, having been salvaged from a Mississippi River Bridge in Burlington, Iowa. The bridge was shortened by 45 feet at this time. As such, the bridge is a rare example of a bridge that represents the materials and designs of an early Mississippi River bridge. This bridge is one of the most significant historic structures in the region, but currently sits abandoned and forgotten. It is both historically and technologically significant.
- 1 Span Whipple through truss bridge with Phoenix columns over Mississippi River on former railroad spur in Moline.
- Moline, Rock Island County, Illinois
- Open to service vehicles only
- Built 1868 as part of a larger bridge over the Mississippi River at Burlington; one span relocated here and shortened in 1891
- - Detroit Bridge & Iron Works of Detroit, Michigan
- - Chicago, Burlington & Quincy Railroad (CBQ)
- Whipple through truss with Phoenix column end posts and pinned connections. Includes cast iron connection assemblies.
Span length: 202.0 ft.
Total length: 202.0 ft.
Deck width: 16.0 ft.
- Approximate latitude, longitude
- +41.51072, -90.53278 (decimal degrees)
41°30'39" N, 90°31'58" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 15/705894/4598393 (zone/easting/northing)
- Quadrangle map:
- Davenport East
- Inventory number
- BH 37343 (Bridgehunter.com ID)
- September 8, 2020: Updated by Tyler: Updated status
- February 20, 2019: New photos from Melissa Brand-Welch
- April 20, 2018: New photos from John Marvig
- February 22, 2015: New Street View added by Luke
- December 28, 2012: New photos from John Marvig
- June 18, 2012: Updated by Luke Harden: Added builder
- March 22, 2012: Updated by Luke Harden: Added category "Chicago, Rock Island & Pacific Railroad"
- February 24, 2011: Updated by Nathan Holth: Made Corrections/Adjustments, Added Flickr Links, and a Statement of Significance.
- August 28, 2008: Added by Kim Harvey