In Minnesota, US-61 has been passed over by I-35 north of the Twin Cities. US-61 was truncated at Wyoming in 1991. The roadway north of Wyoming was turned back to state, county, and local jurisdictions. The section north of Duluth along the north shore survives as a state highway, MN-61. The short section near Scanlon, MN, is a county highway, CSAH-61. It is locally important to Carlton County, but no longer is important on a national scale.
The CSAH-61 bridge is a relatively new prestressed concrete girder bridge. The bridge was 21 years old when these photos were taken. The bridge features a wide deck with wide shoulders, the new style angled guardrails, and a separate sidewalk that is protected from the traffic lanes. Despite being downgraded to a county road, the bridge is still very busy handling 5,400 vehicles a day.
US-61 was authorized by Congress in 1926. It was largely graded by 1929, and paved south of Duluth by 1929. I-35 was competed south of Duluth in 1971. US-61 was marked on I-35W until the Scanlon exit, where US-61 branched off. The current bridge was built in 1987. US-61 was turned back to Carlton County in 1991, being renumbered CSAH-61, keeping the number 61 alive to avoid too much confusion over the road name.
The photo above is looking northeast towards the downriver south side of the bridge from the west bank of the Saint Louis River. While the river looks calm at this location, it is the calm before the storm as the river drops 500 feet over the next 6 miles to reach Saint Louis Bay and Lake Superior.