These structures associated with the National Road are listed on the National Register of Historic Places:
Sixty-nine milestones in Maryland on Maryland Route 144 and Maryland Route 165, U.S. Route 40, U.S. Route 40 Alternate, and U.S. Route 40 Scenic
Inns on the National Road in Cumberland, Maryland, and Grantsville, Maryland
Casselman River Bridge near Grantsville, Maryland
Petersburg Tollhouse in Addison, Pennsylvania
Mount Washington Tavern adjacent to the Fort Necessity National Battlefield in Wharton Township, Pennsylvania
Searights Tollhouse, National Road, in Uniontown, Pennsylvania
Dunlap's Creek Bridge, near Brownsville, Pennsylvania, the first cast iron arch bridge in the United States.
Completed in 1839, it was designed by Richard Delafield and built by the United States Army Corps of Engineers.
Still in use, the bridge is also a National Historic Civil Engineering Landmark.

Claysville S Bridge in Washington County, Pennsylvania, near Claysville, Pennsylvania
Mile markers 8, 9, 10, 11, 13, and 14 in West Virginia
National Road Corridor Historic District in Wheeling, West Virginia
Wheeling Suspension Bridge in Wheeling, West Virginia
Peacock Road in Cambridge, Ohio
The Red Brick Tavern in Lafayette, Madison County, Ohio, built in 1837
Hudleston Farmhouse Inn in Mount Auburn, Indiana
James Whitcomb Riley House in Greenfield, Indiana
Old Stone Arch, National Road, near Marshall, Illinois
The Pennsylvania Historical and Museum Commission has installed five historical markers noting the historic importance of the road: one in Somerset County on August 10, 1947, one in Washington County on April 1, 1949, and three in Fayette County on October 12, 1948, October 12, 1948, and May 19, 1996.

In 1976, the American Society of Civil Engineers designated the national road as a National Historic Civil Engineering Landmark.
These structures associated with the National Road are listed on the National Register of Historic Places:
Sixty-nine milestones in Maryland on Maryland Route 144 and Maryland Route 165, U.S. Route 40, U.S. Route 40 Alternate, and U.S. Route 40 Scenic
Inns on the National Road in Cumberland, Maryland, and Grantsville, Maryland
Casselman River Bridge near Grantsville, Maryland
Petersburg Tollhouse in Addison, Pennsylvania
Mount Washington Tavern adjacent to the Fort Necessity National Battlefield in Wharton Township, Pennsylvania
Searights Tollhouse, National Road, in Uniontown, Pennsylvania
Dunlap's Creek Bridge, near Brownsville, Pennsylvania, the first cast iron arch bridge in the United States. Completed in 1839, it was designed by Richard Delafield and built by the United States Army Corps of Engineers. Still in use, the bridge is also a National Historic Civil Engineering Landmark.
Claysville S Bridge in Washington County, Pennsylvania, near Claysville, Pennsylvania
Mile markers 8, 9, 10, 11, 13, and 14 in West Virginia
National Road Corridor Historic District in Wheeling, West Virginia
Wheeling Suspension Bridge in Wheeling, West Virginia
Peacock Road in Cambridge, Ohio
The Red Brick Tavern in Lafayette, Madison County, Ohio, built in 1837
Hudleston Farmhouse Inn in Mount Auburn, Indiana
James Whitcomb Riley House in Greenfield, Indiana
Old Stone Arch, National Road, near Marshall, Illinois
The Pennsylvania Historical and Museum Commission has installed five historical markers noting the historic importance of the road: one in Somerset County on August 10, 1947, one in Washington County on April 1, 1949, and three in Fayette County on October 12, 1948, October 12, 1948, and May 19, 1996. 
In 1976, the American Society of Civil Engineers designated the national road as a National Historic Civil Engineering Landmark.
National Road