Facilities Development Manual (FDM)
Construction & Materials Manual - WisDOT
FHWA Environmental Guidebook FHWA, Federal Transit Administration, and other U.S. Department of Transportation (DOT) policies, procedures, and guidance related to the environment and transportation.
Information is provided on environmental documentation, public involvement, Section 404 permitting under the Clean Water Act, and other relevant topics. This information will assist transportation and resource agencies, contractors, consultants, local governments, and the public in their transportation decision-making (excerpt from the FHWA website.)