Final answer:
County governments are most likely to provide the function of maintaining roads and bridges.
Step-by-step explanation:
County governments typically provide a variety of functions, but one government function that is most likely to be provided by a county government is maintaining roads and bridges. Counties are responsible for building, repairing, and maintaining the infrastructure within their borders, including roads and bridges. These services are funded through property tax revenue, sales tax receipts, and state or federal grants.