Showing results 1 to 9 of 9
historicalmarkerproject.com/markers/HM1ZKL_international-boundary-marker_Carthage-TX.html
Historic Civil
Engineering Landmark
International Boundary Marker
Republic of Texas-United States
(Set April 23, 1841)
Designated by the Texas and Louisiana Sections
historicalmarkerproject.com/markers/HM283N_brockton-railroad-viaducts-and-bridges_Brockton-MA.html
Completed 1895 · Dedicated 1986
historicalmarkerproject.com/markers/HM2B3G_the-mullan-road_Cataldo-ID.html
Between 1859 and 1862 the U.S. Army built a military wagon road between Fort Benton Montana, and Fort Walla Walla, Washington. This National Historic Civil Engineering Landmark was the first major engineered highway in the Pacific Northwest.
historicalmarkerproject.com/markers/HM2CIT_huey-p-long-bridge-louisiana_New-Orleans-LA.html
Huey P. Long Bridge, Louisiana. . This structure is a combination railroad and highway bridge. Designed by the firm of Modjeski, Masters and Chase, with foundation recommendations by Dr. Karl Terzaghi. It was the first bridge to span the Mississippi River …
historicalmarkerproject.com/markers/HM2JSH_the-cascades_-.html
The Cascades. . On November 5, 1913, 40,000 people gathered here to witness the dedication of the Los Angeles - Owens River Aqueduct. The terminus of a 233-mile long engineering marvel, the Cascades were the site of William Mulholland's famous speech: "…
historicalmarkerproject.com/markers/HM2L6J_pacific-electric-railway_-.html
Pacific Electric Railway. El Prado Bridge. Constructed in 1913, this bridge was a part of the Pacific Electric Railway system which was designated as a Local Historic Civil Engineering Landmark by the American Society of Civil Engineers, Los Angeles section…
historicalmarkerproject.com/markers/HM2L90_mcneil-st-pump-station_-.html
McNeil St. Pump Station. Historic Site. . Built 1887 as city's first waterworks. Contains original equipment in working order. Only example of its sort remaining in the United States of America, according to Smithsonian Institution. Declared a National Lan…
historicalmarkerproject.com/markers/HM2LYF_river-des-peres-sewage-and-drainage-works_-.html
River Des Peres Sewage and Drainage Works. . . [Top plaque:] . The River Des Peres Sewage and Drainage Works extends 14 miles from the city limits northwest to Delmar and Skinker to the Mississippi River south of the city. . . Four miles of massive, en…
historicalmarkerproject.com/markers/HM2MOB_mullan-wagon-road_-.html
Mullan Wagon Road. . Captain John Mullan started surveying the Mullen Road in 1853 and began construction in 1859 of the 624-mile wagon road that linked Fort Benton to the head of navigation on the Columbia. Indian wars slowed him somewhat, but Mullan opene…