For related documentation, see also HALS VA-12 (Lady Bird Johnson Park 1932 Crabapple), HALS VA-14 (Lady Bird Johnson Park Eastern Cottonwood), HALS VA-15 ("Methuselah" Willow Oak), HALS VA-66 (Mount Vernon Mem More
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete More
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural style of the 1930s. Experimental forming techniques were employed to create the orname More
Significance: Pebble Creek Bridge typifies the early design philosophy of the National Park Service, which was to use indigenous materials to harmonize man-made features with their natural surroundings. This p More
Significance: Mill Creek Bridge is an early example of a deck girder bridge designed by State Bridge Engineer Conde B. McCullough in 1920. It is 124' long, with four arched curtain walls, which disguise it as More
Significance: Mill Creek Bridge is an early example of a deck girder bridge designed by State Bridge Engineer Conde B. McCullough in 1920. It is 124' long, with four arched curtain walls, which disguise it as More
Significance: Mill Creek Bridge is an early example of a deck girder bridge designed by State Bridge Engineer Conde B. McCullough in 1920. It is 124' long, with four arched curtain walls, which disguise it as More