Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...
Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More
DeGray Creek Bridge, Spanning DeGray Creek at Blish Road (CR 50), Arka...
Significance: The American practice of using pins for bridge connections lasted from the 1860s until the 1920s. DeGray Creek Bridge is the only known surviving pin-connected Pratt pony truss bridge in Arkansas... More
Northeast Railroad Corridor, Amtrak Route between Pennsylvania/New Jer...
Survey number: HAER NJ-40 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between Pennsylvania/New Jer...
Survey number: HAER NJ-40 Public domain photograph of train tracks, railroad, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between Pennsylvania/New Jer...
Survey number: HAER NJ-40 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between Pennsylvania/New Jer...
Survey number: HAER NJ-40 Public domain image of New York City buildings, cityscape, free to use, no copyright restrictions image - Picryl description
Water Street Bridge, US Route 1 spanning Metro-North Commuter Railroad...
Significance: The Water Street Bridge is historically and archaeologically significant for its example of late 19th century Baltimore through truss bridge construction, which is being phased out of existence. ... More
Laughery Creek Bridge, Spanning Laughery Creek, Aurora, Dearborn Count...
Significance: Triple-intersection Pratt through-truss bridge is an extremely rare survivor of its type and the oldest known metal truss bridge in Indiana. Unprocessed Field note material exists for this struct... More
Laughery Creek Bridge, Spanning Laughery Creek, Aurora, Dearborn Count...
Significance: Triple-intersection Pratt through-truss bridge is an extremely rare survivor of its type and the oldest known metal truss bridge in Indiana. Unprocessed Field note material exists for this struct... More
Washington Street Bridge, Spanning Spokane River at Washington Street,...
Significance: The Washington Street Bridge is an early example of reinforced concrete construction within the state. The ribbed concrete structure is a patented design of the nationally renowned bridge enginee... More
Broad Street Bridge, Spanning Comanche Creek at Broad Street, Mason, M...
Significance: The Broad Street Bridge, a concrete truss, is the only surviving example of this uncommon type in Texas. It is also one of very few bridges built by the Alamo Construction Company surviving in Te... More
Broad Street Bridge, Spanning Comanche Creek at Broad Street, Mason, M...
Significance: The Broad Street Bridge, a concrete truss, is the only surviving example of this uncommon type in Texas. It is also one of very few bridges built by the Alamo Construction Company surviving in Te... More
Hominy Creek Bridge, Spanning Hominy Creek, Hominy, Osage County, OK
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Hominy Creek Bridge, Spanning Hominy Creek, Hominy, Osage County, OK
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Lafayette Street Overpass, Spanning former St. Louis & San Francisco R...
Significance: The Lafayette Street Overpass, one of numerous grade crossing projects undertaken in 1938, was built to replace a narrow wooden bridge at this site. Like the nearby Maple Street Overpass (1936), ... More
Cache Creek Bridge, Spanning Cache Creek, Dam Road vicinity, Clearlake...
Significance: The Cache Creek Bridge is one of two known remaining examples of Clinton bridges in California. It is also the last remaining through truss highway bridge in Lake County. It represents a type (P... More
Core Creek County Bridge, Spanning Core Creek, approximately 1 mile So...
Significance: The Core Creek County Bridge (Bucks County Bridge 304) over Core Creek is a two span masonry arch structure. The Pennsylvania State Historic Preservation Officers has determined that the bridge i... More
Davis Avenue Bridge, Spanning Woods Run Avenue at Davis Avenue, Pittsb...
Significance: The bridge is a cantilevered structure constructed for transportation, social, and municipal purposes. Constructed before Allegheny City was consolidated into greater Pittsburgh, the bridge repres... More
Davis Avenue Bridge, Spanning Woods Run Avenue at Davis Avenue, Pittsb...
Significance: The bridge is a cantilevered structure constructed for transportation, social, and municipal purposes. Constructed before Allegheny City was consolidated into greater Pittsburgh, the bridge repres... More
Second Street Bridge, Spanning Union Pacific Railroad lines, Little Ro...
Significance: Almost certainly designed by the bridge engineers of the Chicago, Rock Island and Pacific Railroad Company, the bridge over their lines at Second Street is one of the most important small bridges ... More
Second Street Bridge, Spanning Union Pacific Railroad lines, Little Ro...
Significance: Almost certainly designed by the bridge engineers of the Chicago, Rock Island and Pacific Railroad Company, the bridge over their lines at Second Street is one of the most important small bridges ... More
Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau,...
Picryl description: Public domain image of a river or lake, forest, trees, water stream, free to use, no copyright restrictions.
Southern Pacific Railroad Bridge, Spanning Rio Grande at Southern Paci...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Highland Avenue & Baldwin Street Bridge, Spanning New Jersey Transit B...
Significance: The railroad over pass bridge is a contributing resource in the National Register-listed Glen Ridge Historic District, suburban community that developed in response to commuter rail service and is... More
Washington Avenue Bridge, Spanning Missouri Pacific Railroad tracks, M...
Significance: The Washington Avenue Bridge is a single-span, steel Pratt through-truss bridge with a wooden deck and walkway. While the Pratt was an extremely common type, the Washington Avenue Bridge is the o... More
Pithole Stone Arch Bridge, Spanning Pithole Creek at Eagle Rock Road (...
Significance: It is significant as a late 19th century example of a rural masonry bridge constructed at a time when most of its counterparts were built in the more common metal truss types. Although considered ... More
Maggie Creek Bridge, 11 miles west of Elko, Elko, Elko County, NV
Survey number: HAER NV-38 Public domain photograph - historical image of Nevada, United States, free to use, no copyright restrictions image - Picryl description
Huffman Bridge, Spanning Catawba River, Morganton, Burke County, NC
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Triad-Day Mountain Bridge, Spanning Park Loop Road at Triad-Day Mounta...
Significance: This structure provides a grade separation between the Park Loop Road and the Day Mountain Carriage Road, allowing carriage road users to cross the busy park motor road in safety. The stone-faced... More
Falls Bridge, Spanning Schuylkill River, connecting East & West River ...
Significance: The Falls Bridge is a unique and well-preserved example of the Petit through truss design, capable of carrying a roadway on both its upper and lower chords. The upper deck remains incomplete, but... More
Falls Bridge, Spanning Schuylkill River, connecting East & West River ...
Significance: The Falls Bridge is a unique and well-preserved example of the Petit through truss design, capable of carrying a roadway on both its upper and lower chords. The upper deck remains incomplete, but... More
Monongahela Railroad, New Geneva Bridge, Spanning Monongahela River, S...
Significance: The bridge at New Geneva is significant for its long Petit through through truss, and more importantly, for its erection by end manufacturing. At the time of its construction, it was the longest a... More
Person County Bridge No. 35, Spanning South Flat River at State Route ...
Significance: The Person County Bridge No. 35 was built in the early teens by the Champion Bridge Company of Wilmington, Ohio. It spans 83 feet and is divided into five equal panels. The trusses contain the c... More
New York, New Haven & Hartford Railroad, Mystic River Bridge, Spanning...
Significance: The Mystic River Bridge is a center bearing, through truss swing bridge. It is significant as part of the transportation link in the shoreline route of the New York, New Haven and Hartford Railro... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
North Carolina Route 1392 Bridge, Spanning Tuckaseegee River, Dillsbor...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Wilson Shute Bridge, Spanning French Creek at State Road 2008 (formerl...
Significance: The Wilson Shute Bridge is one of the many civil engineering landmarks that document Pennsylvania's rich historic transportation heritage. As an example of a steel Pratt through truss, it represe... More
Charlestown Navy Yard, Shipfitters' Shop, Southeast side of First Aven...
The Boston Redevelopment Authority hired William A. Owens to document all buildings in the Charlestown Navy Yard in 1977, most of which were exterior photographs. Significance: The Charlestown Navy Yard comple... More
Charlestown Navy Yard, Shipfitters' Shop, Southeast side of First Aven...
The Boston Redevelopment Authority hired William A. Owens to document all buildings in the Charlestown Navy Yard in 1977, most of which were exterior photographs. Significance: The Charlestown Navy Yard comple... More
Headen Bridge, County Road 87, spanning Hiawassee River, Hiawassee, To...
Significance: Despite the corrosive forces of the natural elements, the Headen Bridge retains intact its original architectural configuration and functional components, and is an excellent example of an early t... More
Blackwell Bridge, Heardmont Vicinity, County Road 244, Heardmont, Elbe...
Significance: The Blackwell Bridge, a single-span, pin-connected Pratt through truss, is the largest remaining steel truss bridge in Elbert County. It was fabricated and erected by the Austin Brothers Bridge C... More
Blackwell Bridge, Heardmont Vicinity, County Road 244, Heardmont, Elbe...
Significance: The Blackwell Bridge, a single-span, pin-connected Pratt through truss, is the largest remaining steel truss bridge in Elbert County. It was fabricated and erected by the Austin Brothers Bridge C... More
Waddell "A" Truss Bridge, Spanning Lin Branch Creek, Trimble, Clinton ...
The address was changed to reflect that the bridge was moved from its original location (Spanning Linn Branch Creek, Trimble vicinity, Clinton County, Missouri) to Parkville, Missouri, in 1987. (March 2016) Si... More
Waddell "A" Truss Bridge, Spanning Lin Branch Creek, Trimble, Clinton ...
The address was changed to reflect that the bridge was moved from its original location (Spanning Linn Branch Creek, Trimble vicinity, Clinton County, Missouri) to Parkville, Missouri, in 1987. (March 2016) Si... More
Waddell "A" Truss Bridge, Spanning Lin Branch Creek, Trimble, Clinton ...
The address was changed to reflect that the bridge was moved from its original location (Spanning Linn Branch Creek, Trimble vicinity, Clinton County, Missouri) to Parkville, Missouri, in 1987. (March 2016) Si... More
Middle Bridge, Spanning Osage River, Warsaw, Benton County, MO
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Vermont Bridge No. 48, Spanning Winooski River at U.S. Route 2, Waterb...
Significance: The bridge is significant as a representative example of bridges constructed in the early 20th Century. During this time, the use of trusses dominated the bridge industry, replacing the variety o... More
Vermont Bridge No. 48, Spanning Winooski River at U.S. Route 2, Waterb...
Significance: The bridge is significant as a representative example of bridges constructed in the early 20th Century. During this time, the use of trusses dominated the bridge industry, replacing the variety o... More
Vermont Bridge No. 48, Spanning Winooski River at U.S. Route 2, Waterb...
Significance: The bridge is significant as a representative example of bridges constructed in the early 20th Century. During this time, the use of trusses dominated the bridge industry, replacing the variety o... More
Building military bridges. Making charcoal for the army force
Two separate drawings each outlined and separately titled. Titles inscribed below images. Gift, J.P. Morgan, 1919 (DLC/PP-1919:R1.2.44). Forms part of: Morgan collection of Civil War drawings.
Haralson County Bridge, County Road 189, spanning Tallapoosa River, Ta...
Significance: The Haralson County Bridge is a steel pin connected Pratt-through truss constructed by the Virginia Bridge and Iron Company of Roanoke, Virginia. The bridge is composed of one Pratt-through truss... More
North Carolina Route 1417 Bridge, Spanning Dan River, Danbury, Stokes ...
Significance: This Pratt Pony truss bridge spans a narrow gorge of the Dan River. Its builder, the Virginia Bridge and Iron Company, combined the following details into its bridges: threaded pins, laced vertic... More
Wire Ford Bridge, Spanning Big Mulberry Creek at Wire Road (CR 67), Pl...
Significance: Wire Ford Bridge is a good example of early twentieth century metal truss bridge technology. It is the only surviving multiple-span Pratt truss bridge in the Arkansas State Highway and Transporta... More
Wire Ford Bridge, Spanning Big Mulberry Creek at Wire Road (CR 67), Pl...
Significance: Wire Ford Bridge is a good example of early twentieth century metal truss bridge technology. It is the only surviving multiple-span Pratt truss bridge in the Arkansas State Highway and Transporta... More
Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...
Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More
Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...
Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More
Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...
Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More
Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...
Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More
Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...
Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More
Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...
Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More
Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...
Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More
Williamstown-Marietta Bridge, Spanning Ohio River between Williamstown...
Significance: The Williamstown-Marietta Bridge was the first highway bridge in the United States built in a cantilever fashion over an inland river. In 1902, it was the site of the first strike by the newly-fo... More
South Presa Street Bridge, Spanning San Antonio River at Presa Street,...
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Missouri & North Arkansas Railroad Bridge, Spanning Middle Fork Little...
Significance: The Missouri & North Arkansas Railroad Bridge at Shirley, Arkansas is an example of a Baltimore through truss, a modification of the Pratt truss development by the Pennsylvania Railroad in 1871. ... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Chicago River Bascule Bridge, Wabash Avenue, Spanning Chicago River at...
Significance: In 1930 the Wabash Bridge was awarded the American Institute of Steel Construction prize for "Most Beautiful." Survey number: HAER IL-48 Building/structure dates: 1930 Initial Construction
Chicago River Bascule Bridge, Wabash Avenue, Spanning Chicago River at...
Significance: In 1930 the Wabash Bridge was awarded the American Institute of Steel Construction prize for "Most Beautiful." Survey number: HAER IL-48 Building/structure dates: 1930 Initial Construction
Chicago River Bascule Bridge, Wabash Avenue, Spanning Chicago River at...
Significance: In 1930 the Wabash Bridge was awarded the American Institute of Steel Construction prize for "Most Beautiful." Survey number: HAER IL-48 Building/structure dates: 1930 Initial Construction
Chicago River Bascule Bridge, Wabash Avenue, Spanning Chicago River at...
Significance: In 1930 the Wabash Bridge was awarded the American Institute of Steel Construction prize for "Most Beautiful." Survey number: HAER IL-48 Building/structure dates: 1930 Initial Construction
Lee Creek Bridge (No. 1), Spanning Lee Creek at State Highway 59, Natu...
Significance: The Lee Creek Bridge is one of four historic Pennsylvania through steel truss bridges remaining in Arkansas. This bridge was built as part of a two bridge improvement project over Lee's Creek app... More
Bacon Bridge, Spanning Moniteau Creek, Bacon, Moniteau County, MO
Significance: Bacon Bridge (Moniteau Bridge #2) is one of the earliest surviving Pratt through truss bridges in central Missouri. Preserved in the evolution of this structure is the record of the struggle betw... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL
Significance: At the time the Florida East Coast Railway constructed this bridge it was acclaimed as the longest bridge in the world, an engineering marvel. It was the most costly of all Flagler's bridges in t... More
Kentucky Route 49 Bridge, Spanning Rolling Fork River, Bradfordsville,...
Significance: In January 1982, there were six Whipple-Murphy trusses in the State. The Kentucky Route 49 Bridge is the oldest Whipple-Murphy bridge in Kentucky. Survey number: HAER KY-17 Building/structure d... More
Jordan Pond Road Bridge, Spanning Barr Hill-Day Mountain Carriage Road...
Picryl description: Public domain image of an arch bridge, stone structure, architecture, free to use, no copyright restrictions.
Hunters Beach Brook Bridge, Spanning Little Hunters Brook on Park Loop...
Significance: Hunters Beach Brook Bridge carries the Park Loop Road over one of the island's smaller streams. The small structure is unobtrusive, but its stone-faced parapets allow the structure to harmonize w... More
New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning ...
Significance: The Shaw Cove's Bridge is a forged steel rim-bearing swing bridge. It is a single-span, pin-connected Pratt through truss with thin diagonal eye-bars serving as tension members. It is significan... More
New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning ...
Significance: The Shaw Cove's Bridge is a forged steel rim-bearing swing bridge. It is a single-span, pin-connected Pratt through truss with thin diagonal eye-bars serving as tension members. It is significan... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Bayou Teche Bridge, Spanning Bayou Teche, Ruth, St. Martin Parish, LA
Significance: Bayou Teche Bridge is the oldest existing steel I-beam swing span in Louisiana. This bridge is 246 feet long and 15 feet wide. A hand-operated, equal arm swing span bridge, it was designed for a... More
Bayou Teche Bridge, Spanning Bayou Teche, Ruth, St. Martin Parish, LA
Significance: Bayou Teche Bridge is the oldest existing steel I-beam swing span in Louisiana. This bridge is 246 feet long and 15 feet wide. A hand-operated, equal arm swing span bridge, it was designed for a... More
Muddy River Bridge, Spanning Muddy River northeast of I-15 & State Rou...
Significance: The Muddy River Bridge is the best example of a thru "pony" truss bridge in Nevada. It is one of six truss bridges (three of which are pony trusses) still on the NDOT inventory. This constructio... More
Muddy River Bridge, Spanning Muddy River northeast of I-15 & State Rou...
Significance: The Muddy River Bridge is the best example of a thru "pony" truss bridge in Nevada. It is one of six truss bridges (three of which are pony trusses) still on the NDOT inventory. This constructio... More
Muddy River Bridge, Spanning Muddy River northeast of I-15 & State Rou...
Significance: The Muddy River Bridge is the best example of a thru "pony" truss bridge in Nevada. It is one of six truss bridges (three of which are pony trusses) still on the NDOT inventory. This constructio... More
Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegh...
Significance: The bridge was designed by two U.S. Steel subsidiaries - the railroad and the American Bridge Company - as a showpiece for their parent company. This structure not only introduced new silicon stee... More