Coal Creek Bridge (Carlisle, Iowa)

The Coal Creek Bridge is a historic bridge located in Carlisle, Iowa. It is a Warren pony truss bridge that spans Coal Creek. The bridge was built in 1907 by the Iowa Bridge Company of Des Moines. Its construction was crucial for improving transportation and access to the town of Carlisle, particularly for agricultural purposes.

The Coal Creek Bridge is significant for its representation of early 20th-century bridge engineering and its contribution to the local transportation infrastructure. It is a well-preserved example of a Warren pony truss design, a common bridge type during that era. The bridge is characterized by its diagonal web members, which form a series of equilateral triangles, and its comparatively short span, making it suitable for crossing smaller waterways like Coal Creek.

The bridge is listed on the National Register of Historic Places for its architectural and engineering significance, reflecting its importance in the historical development of the Carlisle area. While it may no longer be a primary route for vehicular traffic, it stands as a reminder of the region's infrastructure history.