In Commissioners of Marion County v. Clark, the Supreme Court of the United States was asked to decide whether a county could be held liable for damages caused by a defective bridge. The plaintiff, Clark, had been injured when his horse and wagon fell through a bridge that had been built by the county. The county argued that it was not liable for the damages because it had not been negligent in constructing the bridge. The Supreme Court held that the county was liable for the damages caused by the bridge. The Court reasoned that the county had a duty to maintain the bridge in a safe condition, and that it had breached this duty by failing to inspect the bridge and repair any defects. The Court also noted that the county had received a fee for the construction of the bridge, and that this fee was intended to cover the cost of maintaining the bridge. Therefore, the Court concluded that the county was liable for the damages caused by the defective bridge.

The Commissioners of Marion County v. Clark case was a dispute between the county and an individual, Mr. Clark, over a tax levy imposed by the county on his property in 1872. The Supreme Court held that the tax levy was invalid because it had not been authorized by any state law or statute at the time of its imposition. Justice Field wrote a dissenting opinion arguing that while there may have been no specific state law authorizing such taxes, they were nevertheless valid under general principles of taxation established in prior cases decided by the court. He argued that since these taxes were used to fund public works projects which benefited all citizens equally, they should be considered valid even without explicit authorization from state laws or statutes. Furthermore he argued that if this particular tax levy was found to be invalid then other similar levies would also become vulnerable to challenge and could lead to chaos within local government systems as well as financial hardship for those who rely upon them for services like roads and bridges