National Historic Landmarks (NHLs) are historic properties that illustrate the heritage of the United States. The over 2,600 NHLs found in the U.S. today come in many forms: historic buildings, sites, structures, objects, and districts. Each NHL represents an outstanding aspect of American history and culture.
Context Study
The Covered Bridges National Historic Landmark Context Study (pdf) was written by historian Lola Bennett in 2012.
National Historic Landmarks
Historian Lola Bennett wrote the following covered bridge nominations. All have been designated National Historic Landmarks.
Brown Bridge
Rutland County, Vermont
Town Lattice Truss (1880)
Designated an NHL in 2014
NHL nomination (pdf)
Survey: HAER VT-28
California Powder Works Bridge
Santa Cruz County, California
Smith Truss (1872)
Designated an NHL in 2015
Survey: HAER CA-313
Duck Creek Aqueduct
Metamora, Indiana
Burr-Arch Truss (1846)
Designated an NHL in 2014
Survey: HAER IN-108
Humpback Bridge
Allegheny County, Virginia
Multiple Kingpost Truss (1857)
Designated an NHL in 2012
NHL nomination (pdf)
Survey: HAER VA-1
Knight's Ferry Bridge
Stanislaus County, California
Howe Truss (1863)
Designated an NHL in 2012
Survey: HAER CA-314
West Union Bridge
West Union, Indiana
Burr-Arch Truss (1876)
Designated an NHL in 2016
NHL nomination (pdf)
Survey: HAER IN-105
Additional Information: Animated Fly-Through
Last updated: November 23, 2022