- 1864: 62 miles completed from Escanaba to Negaunee, Michigan by the Peninsula Railroad Company of Michigan
- 1865: Peninsula Railroad Company of Michigan acquired by the Chicago & North Western Railway
- 1870: 5 miles completed from Negaunee to Ishpeming, Michigan by the Chicago & North Western Railway
- 1871: 50 miles completed from Green Bay to Marinette, Wisconsin by the Chicago & North Western Railway
- 1872: 65 miles completed from Marinette to Escanaba, Michigan by the Chicago & North Western Railway
- 1888: 22 miles completed from Ishpeming to Republic, Michigan by the Iron Range Railway
- 1889: Iron Range Railway acquired by the Chicago & North Western Railway
- 1997: Green Bay to Ishpeming segment sold to Wisconsin Central, Ltd
- 2001: Canadian National Railway acquires Wisconsin Central, Ltd
- 2001-Present: Canadian National operates the line between Green Bay and Ishpeming as the Marinette Subdivision
This bridge is a small through girder swing bridge over Duck Creek near where I-41/US-141 and I-43 meet in Howard.
Built in 1903, the bridge sits on masonry substructures, including a round center pier which still has full gears to operate.
However, it is highly doubted the bridge could actually operate in its current state, and there would be little need for it to.
Today, the bridge is a popular fishing spot and a landmark of sorts. Overall, the bridge remains in good condition with some deterioration.
The author has ranked this bridge as being moderately significant, due to the swing design.
The photo above is an overview.