Authorizes the Department of Transportation (DOT) to pave or maintain roads at less than current DOT standards if an adjoining property is designated historic or having high scenic value, or if leaving the road unpaved enhances a low-volume business or agribusiness venture, unless the owner of the adjoining property consents to paving and maintenance at current DOT standards. Lists factors that DOT must use in reevaluating whether and how to pave or maintain such a road. Allows DOT to pave to standards despite the lack of consent of adjoining property owners, if DOT determines that the condition of the road places lives of the motoring public at risk based on five specified factors. Requires DOT to pay the owner or owners of property adjoining such a road the depreciation in the historic, scenic or business goodwill of the property if DOT decides to pave to standards without consent of an adjoining owner. Removes roads that are not paved or maintained to standards under these provisions from counting as unpaved miles of state-maintained roads and from counting in the equity formula for highway funding.