Long-term plans are for portions of Interstate-80 in Iowa to expand to six lanes. Stu Anderson is the director of the Transportation Development Division at the Iowa D-O-T. He says in some areas, freight — hauled by semis — accounts for 40 percent of the traffic on I-80.

About 45-hundred bridges in Iowa are rated in poor condition — in need of repairs and upgrades. Anderson says state officials have been using part of the money from the state gas tax increase that took effect in early 2015 to fix bridges.

Anderson says bridges rated in poor condition are still safe for traffic, but have issues that need to be addressed.