One of the unique features of Croswell is the suspension footbridge across the Black River, the only one of its kind in Michigan and one of the few in existence.

Before the coming of the automobile, River Bend Park on the west side of the river, was a popular picnic ground. The spot was somewhat difficult to reach, however, for the only approach was a round-about path from the south.

In the summer of 1905, shortly after Croswell had been incorporated as a city with H.W. Wixon as its mayor, the local Oddfellow Lodge began a drive to raise approximately $300 for the footbridge across the river. The drive was launched by a committee including Mayor Wixon, John H. Murdaugh, Charles McGuiness, D.E. Wise, Guy Hanson, and William Humphries.

The first two cables for the 139-foot span were furnished by the Michigan Sugar Company. The cables were run over rollers and anchored to angle iron posts embedded in concrete. Some years later, at a cost of about 150 dollars, two extra lengths of cable were provided to insure greater safety and decrease the wobbliness.

Not long after the bridge was erected, David Wise placed a sign at the eastern approach reading, "Be Good to Your Mother-in-Law." Another at the west end of the bridge, which has since been discarded, said "Love Ye One Another."

There are many explanations for the "Be Good To Your Mother-in-Law" sign. One of them is that often couples walk across the bridge thinking about a prospective marriage, and inevitably the mother-in-law comes to mind. The admonition, "Be Good to Your Mother-in-Law" is a gentle hint of one way to insure a successful marriage.