Wikipedia:WikiProject U.S. Roads/Resources

Resources
A department of the U.S. Roads WikiProject

The U.S. Roads WikiProject
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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.

Nationwide

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.