View Exhibit map
Alaska Way Viaduct
(King County, Washington)2.2 mile long, double decked, elevated freeway built between 1949 and 1953
(Cape Girardeau County, Missouri)Old road connecting the county seat towns of Jackson and Benton
(Allegheny County, Pennsylvania)Four-level stack interchange in Pittsburgh, Pennsylvania
Blacksmith Creek Bridge
(Shawnee County, Kansas)Pony arch bridge over Blacksmith Creek on SW 10th Street west of Topeka and just south of I-70
Chesapeake Bay Bridge-Tunnel
(Northampton County, Virginia)18-mile long bridge-tunnel carrying US-13 across the mouth of Chesapeake Bay between Virginia Beach and Cape Charles, Virginia
(Miami County, Kansas)Three-span Marsh arch bridge over Marais Des Cygnes River on 8th Street at Osawatomie
(Orange County, California)Brief history of the Mariner's Mile stretch of PCH in Newport Beach.
(La Crosse County, Wisconsin)A hand-hewn cut through hard rock, built in 1907-08, remaining virtually unchanged
Mine Creek Bridge
(Linn County, Kansas)Rainbow arch bridge over Mine Creek on Ungeheuer Road (Old US 69), five miles north of Prescott
(Guernsey County, Ohio)The National Road, built in the 1st part of the 1800s, runs between Cumberland MD and Vandalia IL
(New York County, New York)
Pottawatomie Creek Bridge
(Miami County, Kansas)Three span through arch bridge over Pottawatomie Creek on Old KS 7 in Osawatomie
(Linn County, Iowa)A section of seedling mile, a demonstration highway built to show motorists the advantages of concrete paving over macadam, gravel or mud.
(Cook County, Illinois)Alley with a wooden block surface.