The report includes an evaluation of the state's bridges (D), dams (C), drinking water (C), energy (B-), roads (C-), schools (C-) and wastewater (B-).
"The GPA remains unchanged from the 2012 Report Card for Idaho's Infrastructure," Seth Olsen, Idaho Infrastructure Report Card chair, said. "Idaho is the fastest growing state in the country... As a whole, the 'C-' means we're doing too little to prepare for the future."
The report finds nearly half of the existing bridges on the state highway system and nearly 30 percent of local bridges are 50 years or older. Most bridges in the 20th century were constructed for a 50-year design life.
The report also concludes the Idaho Legislature's budget for state roads and highways is insufficient to meet current and future demands.