Wikipedia:WikiProject U.S. Roads/Resources

Welcome to the USRD Resources Department! This page lists a variety of maps, resources and other databases that may be helpful in editing national roads articles.

Historic maps

 * 1926 U.S. Highway system
 * 1927 Rand McNally
 * American Geographical Society Library Digital Map Collection
 * Auto trail maps
 * Broer Map Library - Online Historic Maps, including many after numbers were assigned
 * Historic Aerials, nationwide collection of USGS topographic maps (and aerials for some locations) seamlessly joined over modern map data (Note: dates given for topos don't always reflect correct revision shown)
 * Historic Map Works, including some relatively recent atlases
 * Maptech: Historical Topographic Maps
 * Historic USGS Maps of New England & NY, a subset of the above
 * Ontario Road Map Site - mostly covers only Ontario and sometimes Quebec, but some "spill over" into New York and Michigan, and he scanned the eastern half of a 1936 U.S. map
 * Perry-Castañeda Library Map Collection: topographic maps (when uploading to commons, remember: commons:Template:PCL should be added in addition to a copyright tag)
 * University of Alabama Historical Map Archive, including old USGS topos from all over the U.S., and some highway maps from other states, including Georgia and Tennessee

Other resources

 * A Handbook of New England, a 1916 book that describes the color-banded routes marked by the states of Connecticut, Massachusetts, and New Hampshire
 * National Bridge Inventory, provides approximate years when bridges and overpasses were completed
 * State MUTCD supplements

USRD internal databases

 * /AASHTO minutes
 * /Lengths, a page with route length sources for most states
 * /List of highways bypassed by Interstate Highways
 * /Map archives, links to archives of historic state DOT maps
 * /Map database, a database of what historic maps users have
 * /Periodical database, a database of what users have access to historic periodicals
 * /Roads on the National Register of Historic Places

States
For state-specific resources, consult the individual task force pages.