Requirements on trunk highway system maintenance and expansion established, including to limit trunk highway capacity expansion projects in certain circumstances and to require transportation asset management plans; and technical changes made.

HF 3728 requires Minnesota's Department of Transportation (DOT) to implement transportation asset management plans and limits highway expansion projects when pavement or bridge conditions show performance gaps. Specifically, it prohibits adding lanes or widening highways (capacity expansion projects) in the state transportation budget if asset management plans identify shortfalls in pavement or bridge conditions. The bill also mandates 60-year maintenance plans for major highway projects, analyzing costs for preventive maintenance, operations, and indirect expenses. These requirements apply to trunk highway projects entering state or regional transportation programs in 2031 or later, directly affecting the DOT and local governments managing highway infrastructure.