Aviation

Bureau of Transportation Statistics, “State Transportation by the Numbers.” Accessed February 28, 2021.

Bridges

U.S. Department of Transportation, Federal Highway Administration, Office of Bridge Technology. National Bridge Inventory 2017, Deficient Bridges by State and Highway System.

Dams

National Inventory of Dams, “2018 Number of Dams by State – All NID Dams,” 2018.

Drinking Water

U.S. Environmental Protection Agency, Office of Water, “Drinking Water Infrastructure Needs Survey and Assessment: Sixth Report to Congress,” 2015.

Energy

“Eaton Blackout Tracker United State Annual Report 2018,” pg. 9. 2018.

Hazardous Waste

U.S. Environmental Protection Agency, “Search for Superfund Sites Where You Live.” Accessed February 28, 2021.

Inland Waterways

Bureau of Transportation Statistics, “State Transportation by the Numbers.” Accessed February 28, 2021.

Levees

U.S. Army Corps of Engineers. “Levee Portfolio Report: A Summary of Risks and Benefits Associated with the USACE Levee Portfolio,” Appendix E. 2018.

Ports

Bureau of Transportation Statistics, “State Transportation by the Numbers.” Accessed February 28, 2021.

Public Parks

National Park Service, “NPS Deferred Maintenance by State and Park.” 2018.

Rail

Bureau of Transportation Statistics, “State Transportation by the Numbers.” Accessed February 28, 2021.

Roads

TRIP, “Pavement Condition and Vehicle Operating Cost Data,” 2019.

Schools

21st Century School Fund, “State of Our Schools: America’s K-12 Facilities,” Appendix A. 2016.

Solid Waste

Environmental Research & Education Foundation, “Municipal Solid Waste Management in the U.S. 2010 & 2013,” Table 8. 2016.

Stormwater

Western Kentucky University, “Western Kentucky University Stormwater Utility Survey 2020,” Table A-1. 2020.

Transit

Bureau of Transportation Statistics, “State Transportation by the Numbers.” Accessed February 28, 2021.

Wastewater

U.S. Environmental Protection Agency, “Clean Watersheds Needs Survey 2012, Report to Congress,” Table A-1. 2016.