North Avenue Bridge, Spanning North Branch of Chicago River at West No...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
North Avenue Bridge, Spanning North Branch of Chicago River at West No...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Macy Street Viaduct, Los Angeles, Los Angeles County, CA
Significance: The Cesar Chavez-Macy Street Bridge is designated Los Angeles City Historic-Cultural Monument No. 224, declared August 1, 1979. Bridge designers chose its Spanish Colonial Revival style to commem... More
Macy Street Viaduct, Los Angeles, Los Angeles County, CA
Significance: The Cesar Chavez-Macy Street Bridge is designated Los Angeles City Historic-Cultural Monument No. 224, declared August 1, 1979. Bridge designers chose its Spanish Colonial Revival style to commem... More
Macy Street Viaduct, Los Angeles, Los Angeles County, CA
Significance: The Cesar Chavez-Macy Street Bridge is designated Los Angeles City Historic-Cultural Monument No. 224, declared August 1, 1979. Bridge designers chose its Spanish Colonial Revival style to commem... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Southern Pacific Railroad, Ogden-Lucin Cutoff Trestle, Spanning Great ...
Significance: The Ogden-Lucin Cut-Off, built 1902-1904 by the Southern Pacific Railroad across the Great Salt Lake, is possibly the most noteworthy achievement of bridge and fill work in the United States. Will... More
Southern Pacific Railroad, Ogden-Lucin Cutoff Trestle, Spanning Great ...
Significance: The Ogden-Lucin Cut-Off, built 1902-1904 by the Southern Pacific Railroad across the Great Salt Lake, is possibly the most noteworthy achievement of bridge and fill work in the United States. Will... More
Southern Pacific Railroad, Ogden-Lucin Cutoff Trestle, Spanning Great ...
Significance: The Ogden-Lucin Cut-Off, built 1902-1904 by the Southern Pacific Railroad across the Great Salt Lake, is possibly the most noteworthy achievement of bridge and fill work in the United States. Will... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of St...
Significance: Mountain Dell Dam is an early application of multiple-arch reinforced-concrete construction to dam engineering. The design developed by John S. Eastwood consisted of a series of arches set at an a... More
Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of St...
Significance: Mountain Dell Dam is an early application of multiple-arch reinforced-concrete construction to dam engineering. The design developed by John S. Eastwood consisted of a series of arches set at an a... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Peavey Globe Elevator, West Gate Basin & Howard's Bay, east side of sl...
Significance: The Peavey Globe Elevator was one of several grain elevators built in the first half of the twentieth century on the opposing Lake Superior harbors of Duluth, Minnesota, and Superior, Wisconsin. ... More
Silver King Mining Company, Ore Loading Station, Park Avenue, Park Cit...
Significance: One problem encountered by the Silver King Mining Company was the transportation of its ore over the rough terrain between the mine and the railhead in Park City. The solution was a 7,000' long ae... More
Silver King Mining Company, Ore Loading Station, Park Avenue, Park Cit...
Significance: One problem encountered by the Silver King Mining Company was the transportation of its ore over the rough terrain between the mine and the railhead in Park City. The solution was a 7,000' long ae... More
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
La Cienega Acequia, Truchas Molino, 334 Los Pinos Road, Santa Fe, Sant...
Significance: The Truchas Molino is one of the only example of a Spanish Colonial style grist mills powered by a rodenzo, a horizontal water wheel, that is currently operational in the United States. These moli... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More
Estate Rust-Op-Twist, Steam Engine & Cane Mill, Christiansted, St. Cro...
Significance: Rust-op-Twist's long and troubled history as a sugar producing estate is typical of many other St. Croix plantations. An animal mill, and windmill, and a steam mill - representative of the evoluti... More
Hopewell Bridge, Spanning Little Sandy River, Hopewell, Greenup County...
Survey number: HAER KY-36 Public domain photograph of electric wires, power line, free to use, no copyright restrictions image - Picryl description
Old Mill Road Bridge, Spanning Saucon Creek, Old Mill Road, Hellertown...
Significance: One of two existing pony-truss spans built by the Beckel Foundry. Both used variations of Francis C. Lowthorp's 23 June 1857 and 13 March 1860 patented cast lower-chord connections. The Old Mill... More
Old Mill Road Bridge, Spanning Saucon Creek, Old Mill Road, Hellertown...
Significance: One of two existing pony-truss spans built by the Beckel Foundry. Both used variations of Francis C. Lowthorp's 23 June 1857 and 13 March 1860 patented cast lower-chord connections. The Old Mill... More
Peavey Globe Elevator, No. 1 House, West Gate Basin & Howard's Bay, ea...
Significance: The Peavey Globe Elevator was one of several grain elevators built in the first half of the twentieth century on the opposing Lake Superior harbors of Duluth, Minnesota, and Superior, Wisconsin. ... More
Peavey Globe Elevator, No. 1 House, West Gate Basin & Howard's Bay, ea...
Significance: The Peavey Globe Elevator was one of several grain elevators built in the first half of the twentieth century on the opposing Lake Superior harbors of Duluth, Minnesota, and Superior, Wisconsin. ... More
Wawona Covered Bridge, Spanning South Fork Merced River on service roa...
part of Yosemite National Park Roads and Bridges Recording Project, 1991; see HAER No. CA-117 for overview Significance: The Wawona Covered Bridge is the oldest bridge in Yosemite National Park and a rare examp... More
North Halsted Street Canal Bridge, Spanning North Branch Canal at Nort...
Significance: Spanning the North Branch Canal at North Halsted Street in Chicago, the North Halsted Street Bridge is a double-leaf, fixed-trunnion bascule with a rigidly attached, below-deck counterweight. Com... More
Atherton Bridge, Spanning Nashua River on Bolton Road, Lancaster, Worc...
Significance: The Atherton Bridge is an example of a hybrid pony-truss that bears a similarity to the Post truss. The bridge is 72 feet long, 18 1/2 feet wide, and is comprised of eight panels. It rests on gr... More
Atherton Bridge, Spanning Nashua River on Bolton Road, Lancaster, Worc...
Significance: The Atherton Bridge is an example of a hybrid pony-truss that bears a similarity to the Post truss. The bridge is 72 feet long, 18 1/2 feet wide, and is comprised of eight panels. It rests on gr... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Lincoln Highway, Running from Philadelphia to Pittsburgh, Fallsington,...
Significance: The Lincoln Highway was the first transcontinental automobile route linking the east and west coasts of the United States. As designated by the Lincoln Highway Association in 1913, the highway wa... More
Ponakin Road Bridge, Spanning Nashua River on Ponakin Road, Lancaster,...
Significance: The single span Ponakin Road Bridge is 100 feet long and 20 feet wide, with vertical end posts. The bridge has diagonal compression members and diagonal eye-bar tension members that extend two pa... More
Ponakin Road Bridge, Spanning Nashua River on Ponakin Road, Lancaster,...
Significance: The single span Ponakin Road Bridge is 100 feet long and 20 feet wide, with vertical end posts. The bridge has diagonal compression members and diagonal eye-bar tension members that extend two pa... More
Ponakin Road Bridge, Spanning Nashua River on Ponakin Road, Lancaster,...
Significance: The single span Ponakin Road Bridge is 100 feet long and 20 feet wide, with vertical end posts. The bridge has diagonal compression members and diagonal eye-bar tension members that extend two pa... More
Ponakin Road Bridge, Spanning Nashua River on Ponakin Road, Lancaster,...
Significance: The single span Ponakin Road Bridge is 100 feet long and 20 feet wide, with vertical end posts. The bridge has diagonal compression members and diagonal eye-bar tension members that extend two pa... More
Zane Grey House, West side of Scenic Drive, Lackawaxen, Pike County, P...
Significance: Zane Grey (1872-1939), a noted fisherman and author of novels about the American West, began his professional writing career in Lackawaxen, Pennsylvania where he lived from 1906 until 1918. The ho... More
Zane Grey House, West side of Scenic Drive, Lackawaxen, Pike County, P...
Significance: Zane Grey (1872-1939), a noted fisherman and author of novels about the American West, began his professional writing career in Lackawaxen, Pennsylvania where he lived from 1906 until 1918. The ho... More
Philadelphia, Wilmington & Baltimore Railroad, President Street Statio...
Significance: As of 1974, the President St. Station was one of the oldest large city railroad terminals still standing in the United States. The station quite possibly contains one of the earliest uses of the ... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
Hacienda Azucarera la Igualdad, Sugar Mill Ruins & Steam Engine, PR Ro...
Significance: Still extant at the ruins of Hacienda Azucarera La Igualdad is a single column, slide-valve, side-crank beam engine of unknown manufacture that drove a three-role cane crushing mill. The plantati... More
North Village Bridge, Spanning French River on North Main Street, Webs...
Significance: The North Village Bridge is one of only five known surviving Parker patent trusses in the United States, and the second oldest of the three located in Massachusetts. The bridge was built by the N... More
North Village Bridge, Spanning French River on North Main Street, Webs...
Significance: The North Village Bridge is one of only five known surviving Parker patent trusses in the United States, and the second oldest of the three located in Massachusetts. The bridge was built by the N... More
Coleman Bridge, Spanning Phelps Brook, on Windsor Bush Road, at easter...
Significance: In 1893 Charles H. Ball, a mechanic and inventor from East Windsor, Massachusetts, patented a design for a small truss bridge constructed of iron pipes, which he described as "a strong, cheap brid... More
North Avenue Bridge, Spanning North Branch of Chicago River at West No...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Macy Street Viaduct, Los Angeles, Los Angeles County, CA
Significance: The Cesar Chavez-Macy Street Bridge is designated Los Angeles City Historic-Cultural Monument No. 224, declared August 1, 1979. Bridge designers chose its Spanish Colonial Revival style to commem... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Southern Pacific Railroad, Ogden-Lucin Cutoff Trestle, Spanning Great ...
Significance: The Ogden-Lucin Cut-Off, built 1902-1904 by the Southern Pacific Railroad across the Great Salt Lake, is possibly the most noteworthy achievement of bridge and fill work in the United States. Will... More
Southern Pacific Railroad, Ogden-Lucin Cutoff Trestle, Spanning Great ...
Significance: The Ogden-Lucin Cut-Off, built 1902-1904 by the Southern Pacific Railroad across the Great Salt Lake, is possibly the most noteworthy achievement of bridge and fill work in the United States. Will... More
Pinto Wye Arrastra, Twentynine Palms, San Bernardino County, CA
Significance: The arrastra is an important example of nineteenth- and twentieth-century milling technology. This specimen is unusual because it used a wooden wheel as the pivot mechanism; only two of this type... More
Pinto Wye Arrastra, Twentynine Palms, San Bernardino County, CA
Significance: The arrastra is an important example of nineteenth- and twentieth-century milling technology. This specimen is unusual because it used a wooden wheel as the pivot mechanism; only two of this type... More
Pinto Wye Arrastra, Twentynine Palms, San Bernardino County, CA
Significance: The arrastra is an important example of nineteenth- and twentieth-century milling technology. This specimen is unusual because it used a wooden wheel as the pivot mechanism; only two of this type... More
Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los A...
Significance: Glendale-Hyperion Bridge is significant as one of the twelve Historic bridges over the Los Angeles River determined eligible for the National Register of Historic Places. It has also been designa... More
Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los A...
Significance: Glendale-Hyperion Bridge is significant as one of the twelve Historic bridges over the Los Angeles River determined eligible for the National Register of Historic Places. It has also been designa... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Continental Gin Company, Prattville, Autauga County, AL
Significance: The site was acquired by Daniel Pratt in 1838, and he soon established grist and lumber and shingle mills there. By 1844, he had opened a cotton gin plant, the products of which were in great dem... More
Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of St...
Significance: Mountain Dell Dam is an early application of multiple-arch reinforced-concrete construction to dam engineering. The design developed by John S. Eastwood consisted of a series of arches set at an a... More
Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of St...
Significance: Mountain Dell Dam is an early application of multiple-arch reinforced-concrete construction to dam engineering. The design developed by John S. Eastwood consisted of a series of arches set at an a... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Estate Reef Bay, Sugar Factory, Reef Bay, St. John, VI
Significance: The factory at Estate Reef Bay affords one of the finest surviving examples of the sugar industry in the West Indies. Boiling coppers, used for processing cane-juice, remain in place in their maso... More
Boxley Grist Mill, Boxley vicinity on State Route 43, Buffalo National...
Significance: The Boxley Grist Mill is an example of a once common industry which provided custom milling services in rural areas. The mill, though deteriorated, still retains the millpond, raceways, machinery... More
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of ...
Significance: The ruins are the only extant remains pertaining to an industrial building in Puerto Rico dating back to the late 18th century. They illustrate the transition from a cattle-driven vertical wooden... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More
Estate Rust-Op-Twist, Steam Engine & Cane Mill, Christiansted, St. Cro...
Significance: Rust-op-Twist's long and troubled history as a sugar producing estate is typical of many other St. Croix plantations. An animal mill, and windmill, and a steam mill - representative of the evoluti... More
Jay Covered Bridge, Count Route 22, spans East Branch of AuSable River...
New York State Historic Bridges Recording Project Significance: The Jay Covered Bridge is the last remaining covered timber bridge in the Adirondack-Champlain region and is the longest in New York State. Unpro... More
Jay Covered Bridge, Count Route 22, spans East Branch of AuSable River...
New York State Historic Bridges Recording Project Significance: The Jay Covered Bridge is the last remaining covered timber bridge in the Adirondack-Champlain region and is the longest in New York State. Unpro... More
Bardwell's Ferry Bridge, Spanning Deerfield River on Bardwell's Ferry ...
Significance: The Bardwell's Ferry Bridge is an excellent, virtually unaltered, example of William Douglas's 1878 patent for a wrought-rion lenticular truss bridge. It is one of approximately fifty lenticular ... More
Bardwell's Ferry Bridge, Spanning Deerfield River on Bardwell's Ferry ...
Significance: The Bardwell's Ferry Bridge is an excellent, virtually unaltered, example of William Douglas's 1878 patent for a wrought-rion lenticular truss bridge. It is one of approximately fifty lenticular ... More
Wawona Covered Bridge, Spanning South Fork Merced River on service roa...
part of Yosemite National Park Roads and Bridges Recording Project, 1991; see HAER No. CA-117 for overview Significance: The Wawona Covered Bridge is the oldest bridge in Yosemite National Park and a rare examp... More
Whipple Cast & Wrought Iron Bowstring Truss Bridge, Normans Kill Vicin...
Bridge moved to present location ca. 1900. More information is available by reviewing U.S. patent no. 2064. Significance: One of only two known surviving "Whipple" bowstring truss bridges, and one of the few re... More
Mormon Tabernacle, Temple Square, Salt Lake City, Salt Lake County, UT
See also HABS UT-36-2 for additional documentation. Significance: The Church of Jesus Christ of the Latter-Day Saints started construction of its Salt Lake City Tabernacle on 26 July 1864, and held its first co... More