The forecast for US road infrastructure expenditure shows a gradual increase from 161.05 billion USD in 2024 to 163.29 billion USD by 2028. Compared to 2023, where the actual expenditure was identical to 2024's projected amount, this indicates a steady growth trajectory. The annual year-on-year growth is minimal, between 0.36% and 0.43%, averaging to a modest CAGR. Given the consistent rise, the outlook suggests sustained but slow growth in investment over the coming years.

Future trends to watch for include:

Increased focus on sustainable infrastructure, influencing budget allocations.
Potential federal initiatives and policies affecting funding levels.
Technological advancements in road construction and maintenance impacting expenditure.