San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
Bush Terminal Company, Pier 5, Opposite end of Forty-first Street on U...
Significance: Pier 5 was typical of the substructures and piersheds built by Irving Bush c. 1902-09, sheet-piling-retained fill. It survives partly intact, and retains the best evidence of late attempts to mod... More
Bush Terminal Company, Pier 5, Opposite end of Forty-first Street on U...
Significance: Pier 5 was typical of the substructures and piersheds built by Irving Bush c. 1902-09, sheet-piling-retained fill. It survives partly intact, and retains the best evidence of late attempts to mod... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
Sparkman Street Bridge, Spanning Cumberland River, Nashville, Davidson...
Significance: The bridge possesses state level engineering significance as an example of the through Parker and camelback truss types for its uncommon concrete trusses. The bridge possesses local significance a... More
Baltimore & Ohio Railroad, Harpers Ferry Station, Potomac Street, Harp...
Significance: The train station at Harpers Ferry provides an excellent opportunity to study the relationship between railroad engineering and railroad economics. Designed by architect E. Francis Baldwin, the s... More
Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, Ne...
Significance: The Mystic River Bridge is significant as an example of the Brown Balance Beam Bascule, an innovative design that raised movable-bridge technology to a new level of refinement in the early 20th ce... More
U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...
See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More
U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...
See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More
U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...
See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... 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
U.S. Steel Duquesne Works, West bank of Monongahela River along State ...
Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integrated steel producing ventures in the Monongahela Valley of western Pennsylvania. Constructed af... More
Poplar Grove Road Bridge, Spanning Chicago & Northwestern Railroad, Le...
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor... 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
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
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
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
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
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
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
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
General Dynamics Corporation Shipyard, Wellman-Seaver Crane, 97 Howard...
Significance: Erected in 1901, Structure No. 30S, the Wellman-Seaver Folding Gantry Crane, or Crane S-1, is significant as the oldest and longest-operating crane in the Quincy-Fore River Shipyard. Located on P... More
General Dynamics Corporation Shipyard, Wellman-Seaver Crane, 97 Howard...
Significance: Erected in 1901, Structure No. 30S, the Wellman-Seaver Folding Gantry Crane, or Crane S-1, is significant as the oldest and longest-operating crane in the Quincy-Fore River Shipyard. Located on P... 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
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
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
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
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
South High Street Bridge, South High Street, spanning Little Juniata C...
Significance: The South High Street Bridge is one of four surviving lenticular truss bridges in the Commonwealth of Pennsylvania and one of fifty remaining in the United States. The truss derives its name from... More
Philadelphia, Wilmington & Baltimore Railroad, Bridge No. 1, Spanning ...
Significance: Grays Ferry is the site of one of Philadelphia's oldest Schuylkill River bridges. The present swing span is typical of movable bridge construction at the turn of the 20th century. Survey number: ... More
Fort Madison Bridge, Spanning Mississippi River at U.S. Highway 61, Fo...
Significance: This bridge is a major river span and had, at the time of its construction, the longest and heaviest electrified swing span on the Mississippi River. The bridge superstructure was built by Americ... More
Fort Madison Bridge, Spanning Mississippi River at U.S. Highway 61, Fo...
Significance: This bridge is a major river span and had, at the time of its construction, the longest and heaviest electrified swing span on the Mississippi River. The bridge superstructure was built by Americ... More
Susquehanna River Bridge, Spanning Susquehanna River, Havre de Grace, ...
Significance: The Susquehanna River Bridge was constructed in 1908 to replace an older, timber Howe truss structure. The first bridge built by the B&O Railroad on this site consisted of twelve 250 foot spans, ... More
South Fork Trinity River Bridge, State Highway 299 spanning South Fork...
Significance: The South Fork Trinity River Bridge is one of a very limited number of cantilever truss highway bridges in California. Best suited to specific terrain conditions such as deep canyons to be crosse... More
South Fork Trinity River Bridge, State Highway 299 spanning South Fork...
Significance: The South Fork Trinity River Bridge is one of a very limited number of cantilever truss highway bridges in California. Best suited to specific terrain conditions such as deep canyons to be crosse... More
St. Louis Avenue Viaduct, Spanning Kansas City Terminal Railroad at Be...
Significance: The St. Louis Avenue Viaduct is the oldest of only nine known extant skewed Pratt truss bridges, a rather uncommon bridge form, in Missouri. Furthermore, its fifty-foot width is unusual for a bri... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Southern Railway Company, Spencer Shops, Salisbury Avenue between Thir...
Significance: The Spencer Shops served as the largest maintenance and repair facility in the Southern Railway Company system. The extant structures provide important indications of the requirements of large sc... More
Yeakle Mill Bridge, State Route 3026 (Mill Road) spanning Little Cove ...
Significance: The Yeakle Mill Bridge is one of a few surviving Pratt pony truss structures that once were common throughout South Central Pennsylvania. Designed by the Pittsburgh Bridge Company and erected thr... More
Yeakle Mill Bridge, State Route 3026 (Mill Road) spanning Little Cove ...
Significance: The Yeakle Mill Bridge is one of a few surviving Pratt pony truss structures that once were common throughout South Central Pennsylvania. Designed by the Pittsburgh Bridge Company and erected thr... More
West End-North Side Bridge, Spanning Ohio River, approximately 1 mile ...
Photographs cover approach spans only; Ohio River span not shown. Significance: After two decades of agitation by the local business community, the West End-North Side Bridge was completed in 1932 by the Americ... More
West End-North Side Bridge, Spanning Ohio River, approximately 1 mile ...
Photographs cover approach spans only; Ohio River span not shown. Significance: After two decades of agitation by the local business community, the West End-North Side Bridge was completed in 1932 by the Americ... More
West End-North Side Bridge, Spanning Ohio River, approximately 1 mile ...
Photographs cover approach spans only; Ohio River span not shown. Significance: After two decades of agitation by the local business community, the West End-North Side Bridge was completed in 1932 by the Americ... More
Charleroi-Monessen Bridge, Spanning Monongahela River at State Route 2...
Significance: It is significant as a rare surviving example of a long, multiple-span metal truss bridge. Built as a toll bridge to carry vehicular, pedestrian, and trolley traffic across the Monongahela River, ... More
Charleroi-Monessen Bridge, Spanning Monongahela River at State Route 2...
Significance: It is significant as a rare surviving example of a long, multiple-span metal truss bridge. Built as a toll bridge to carry vehicular, pedestrian, and trolley traffic across the Monongahela River, ... More
Historic Columbia River Highway, Stark Street Bridge, Spanning Sandy R...
Significance: One of the oldest steel truss highway bridges in Oregon and the second oldest steel truss constructed on the Historic Columbia River Highway. Provided a vital link across the Sandy River at the b... More
Three Sisters Bridges, Ninth Street Bridge, Spanning Allegheny River a...
Survey number: HAER PA-490-C Building/structure dates: 1924-1926 Initial Construction National Register of Historic Places NRIS Number: 86000019
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
Monongahela Connecting Railroad Company, Main Bridge, Spanning Mononga...
Significance: Major connection between the north and south sides of the plant which was separated by the Monongahela River. Practically all of the intra-mill transfer of materials crossed this bridge during th... More
Monongahela Connecting Railroad Company, Main Bridge, Spanning Mononga...
Significance: Major connection between the north and south sides of the plant which was separated by the Monongahela River. Practically all of the intra-mill transfer of materials crossed this bridge during th... More
Salinas River Bridge, Spanning Salinas River on Chualar River Road, Ch...
Significance: The Salinas River Bridge on Chualar River Road is an eight-span, pin-connected Pratt through truss bridge. As such, it is the largest multiple-span through truss bridge, particularly of its perio... More
Cuttingsville Bridge, Spanning Mill River at State Route 103, Shrewsbu...
Significance: The bridge is significant as a representative example of the bridges built following the flood of 1927, in which over 1250 of Vermont's bridges were destroyed. The flood was a major episode in Ve... More
Lehigh Valley Railroad, Delaware River Bridge, Spanning Delaware River...
Significance: This structure occupies the piers of the first railroad bridge to cross the Delaware River at Easton. It is also notable for its fish-belly deck trusses, an unusual variant of the Pratt design. U... More
Center Street Bridge, Spanning Conneat Creek, Conneautville, Crawford ...
Significance: Center Street Bridge is an unusually ornate example of a late-nineteenth century, pin-connected Pratt through truss roadway bridge. It is one of four surviving Crawford County bridges built by th... More
Bush Terminal Company, Pier 7, End of Forty-first Street on Upper New ...
Significance: Pier 7 was one of the two earliest piers at Bush Terminal, dating from the 1880s, and was the first to be completely rebuilt by Irving Bush with a piershed. It survives partly intact, and has the... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
State Bridge, Spanning Rio Grande River, Del Norte, Rio Grande County,...
Survey number: HAER CO-36 Building/structure dates: 1908 Initial Construction Building/structure dates: ca. 1928 Subsequent Work
Chicago River Bascule Bridge, Clarke Street, Spanning Chicago River at...
Significance: The development of the Chicago trunnoin bascule bridge occurred during the first three decades of the twentieth century. Despite the controversy over patent infringement Joseph E. Strauss charg... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at ...
Significance: This bridge is one of the last projects of noted bridge engineer George Morison, who died two years after the structure was built. The bridge was the longest and heaviest viaduct of its time, and... More
Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at ...
Significance: This bridge is one of the last projects of noted bridge engineer George Morison, who died two years after the structure was built. The bridge was the longest and heaviest viaduct of its time, and... More
Gault Bridge, Spanning Deer Creek at South Pine Street, Nevada City, N...
Significance: The Gault Bridge has been determined eligible for the National Register of Historic Places under criterion c for its significance in the history of bridge technology in California (Caltrans Bridge... More
Water Street Bridge, County Route 119/26, over Guyandotte River, Logan...
Significance: The Water Street Bridge is significant for its association with the civil and economic development of the city of Logan, West Virginia. Since its construction in 1934 the bridge has been a primar... More
Post Road Bridge, State Route 7-A, Havre de Grace, Harford County, MD
Significance: The bridge, a subdivided Pratt through truss commonly known as a Baltimore truss with substruts and subties, is an example of an early truss form developed for use on long spans. The bridge was f... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Stanislaus River Bridge, Atchison, Topeka & Santa Fe Railway at Stanis...
Significance: The Stanislaus River Bridge, also known as Bridge Number A-1096.719, determined eligible for inclusion in the National Register of Historic Places in 1994, represents a rare extant truss bridge in... More
Stanislaus River Bridge, Atchison, Topeka & Santa Fe Railway at Stanis...
Significance: The Stanislaus River Bridge, also known as Bridge Number A-1096.719, determined eligible for inclusion in the National Register of Historic Places in 1994, represents a rare extant truss bridge in... More