Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Crawfish Creek Bridge, Spanning Crawfish Creek at South Entrance Road,...
Significance: Crawfish Creek Bridge typifies the early design philosophy of the National Park Service, which was to use indigenous materials to harmonize manmade features with their natural surroundings. This ... More
Golden Gate Viaduct, Spanning a ravine at Grand Loop Road, Kingman Pas...
Significance: The present Golden Gate Viaduct occupies the location of several historic viaducts. The original structure at Golden Gate was built in 1885 by the U.S. Army Corps of Engineers, which was responsi... More
Sauk Creek Bridge, Spanning Sauk Creek in Port Washington Harbor, Port...
Significance: The Sauk Creek Bridge is Wisconsin's only known example of a metal, king-post truss bridge. Survey number: HAER WI-40 Building/structure dates: before 1925 Initial Construction
White River Bridge, Spanning Honey Creek on Bieneman Road, Burlington,...
Significance: The White River Bridge, a nineteenth-century Pratt through truss, is the oldest known remaining truss bridge in the State of Wisconsin. It was designed and built by Milwaukee Bridge and Iron Work... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Horse Trail Underpass, Beneath Going-to-the-Sun Road Northeast of West...
Significance: The Horse Trail Underpass is one of approximately seventeen prominent masonry and concrete structures on Going-to-the-Sun Road in Glacier National Park. The 51-mile stretch of scenic road is sign... More
Sprague Creek Culvert, Spanning Sprague Creek at Going-to-the-Sun Road...
Significance: The Sprague Creek Culvert is one of approximately seventeen masonry and concrete structures on Going-to-the-Sun Road in Glacier National Park. The 51-mile stretch of scenic road is a unique engin... More
Belton Bridge, Spanning middle fork of Flathead River at Going-to-the-...
Significance: The Belton Bridge was the western entrance to Glacier National Park from 1920 to 1938, and was one of the park's first major construction projects. Between 1933 and 1938, the bridge was also a vi... More
Imes Bridge, Spanning a ravine south of County Road G50, .5 mile west ...
Significance: Imes Bridge is one of nineteen covered bridges built in Madison County, Iowa, in the late nineteenth century, and the oldest of five that survive. Survey number: HAER IA-94 Building/structure da... More
Coltman Bridge, Spanning Fever River, on Horseshoe Bend Road, Benton, ...
Significance: The Coltman Bridge is a representative example of the State Highway Commission-designed Warren Standard Pony truss design, adapted to a skewed crossing. Out of 443 Wisconsin trusses of this desig... More
Obsidian Creek Bridge, Spanning Obsidian Creek at Indian Creek Campgro...
Significance: Obsidian Creek Bridge is one of two remaining Army Corps of Engineers bridges in Yellowstone National Park. It represents the significant role that the Corps of Engineers played in the early year... More
Tremont Station Bridge, Pierceville Road, spanning Conrail tracks, War...
Significance: The Tremont Station Bridge is one of the oldest metal truss bridges in Massachusetts and the earliest to incorporate J.H. Linville's wide, upset-ended eyebars, a feature which would become standar... More
Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake...
Significance: Fishing 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 philos... More
Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake...
Significance: Fishing 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 philos... More
Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake...
Significance: Fishing 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 philos... More
Firehole River Bridge, Spanning Firehole River at Fountain Freight Roa...
Significance: This bridge is one of two remaining Army Corps of Engineers bridges in Yellowstone National Park. It represents the significant role that the Corps of Engineers played in the early years of road ... More
Gilpin's Falls Covered Bridge, Spanning North East Creek at Former (By...
Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J... More
Gilpin's Falls Covered Bridge, Spanning North East Creek at Former (By...
Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J... More
King's Bridge, Spanning Laurel Hill Creek at bypassed State Highway No...
Significance: Although the history of this bridge has not been thoroughly documented, physical evidence suggests that King's Bridge was originally built in the mid-nineteenth century and largely rebuilt in 1906... More
Nez Perce Bridge, Spanning Nez Perce Creek at Grand Loop Road, Lake, T...
Significance: Nez Perce 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. Thi... 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
Bartlett's Bridge, Spanning French River on Clara Barton Road, Oxford,...
Significance: Bartlett's Bridge is a well-preserved, representative example of a common, rural, nineteenth-century masonry bridge type found in New England. The notable details are the stone parapet with proje... 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
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
Isa Lake Bridge, Spanning Isa Lake at Grand Loop Road, Lake, Teton Cou...
Significance: Isa Lake 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 philo... More
Isa Lake Bridge, Spanning Isa Lake at Grand Loop Road, Lake, Teton Cou...
Significance: Isa Lake 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 philo... More
Shelburne Falls Bridge, Spanning Deerfield River on Bridge Street, She...
Significance: The Shelburne Falls Bridge is the second oldest of seven double-intersection Warren through trusses identified in the Massachusetts Department of Public Works database. The bridge was designed by... More
Butler Bridge, Spans Housatonic River on Butler Road (North Glendale R...
Significance: The Butler Bridge is an apparently unique example of a small highway bridge designed by the pre-eminent American bridge engineer George Shattuck Morison, who is remembered primarily for his long-s... More
Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridg...
Significance: Swann Bridge is one of three surviving covered bridges in Blount County, Alabama, one of the last strongholds of covered bridge building in the United States. Survey number: HAER AL-201 Building... More
Eleventh Street Bridge, Spanning Turners Fall Canal on Eleventh Street...
Significance: The Eleventh Street Bridge is a unique configuration of a double-intersection Warren through truss, with a pair of trusses on either side of the roadway, and lateral bracing between each pair, but... More
Lower Rollstone Street Bridge, Spanning Nashua River on Rollstone Stre...
Significance: The (Lower) Rollstone Street Bridge is one of only five known surviving Parker patent trusses in the United States, and the oldest of the three located in Massachusetts. It is also one of the two... More
French King Bridge, Spanning Connecticut River on State Highway 2, Erv...
Significance: The French King Bridge is one of four known steel deck arch bridges in Massachusetts identified in the Massachusetts Department of Public Works (MDPW) database, and has the sixth longest span of a... More
French King Bridge, Spanning Connecticut River on State Highway 2, Erv...
Significance: The French King Bridge is one of four known steel deck arch bridges in Massachusetts identified in the Massachusetts Department of Public Works (MDPW) database, and has the sixth longest span of a... More
French King Bridge, Spanning Connecticut River on State Highway 2, Erv...
Significance: The French King Bridge is one of four known steel deck arch bridges in Massachusetts identified in the Massachusetts Department of Public Works (MDPW) database, and has the sixth longest span of a... More
Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloi...
Significance: The Turtleville Iron Bridge carries Lather Road 140 feet, from abutment face to abutment face, across Turtle Creek. It was built in 1887 by the Wisconsin Bridge and Iron Company, and is a Pratt t... More
Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloi...
Significance: The Turtleville Iron Bridge carries Lather Road 140 feet, from abutment face to abutment face, across Turtle Creek. It was built in 1887 by the Wisconsin Bridge and Iron Company, and is a Pratt t... More
Merrimac Bridge, Spanning Merrimac River on Bridge Street, Haverhill, ...
Significance: The Merrimac Bridge is located on a site which has been utilized as a major river crossing since the seventeenth century. It contains the oldest moveable span identified in the Massachusetts Depa... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Crawfish Creek Bridge, Spanning Crawfish Creek at South Entrance Road,...
Significance: Crawfish Creek Bridge typifies the early design philosophy of the National Park Service, which was to use indigenous materials to harmonize manmade features with their natural surroundings. This ... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Golden Stairs Retaining Wall, Beneath Going-to-the-Sun Road 43 miles N...
Significance: The Golden Stairs Retaining Wall is one of approximately seventeen prominent masonry and concrete structures on Going-to-the-Sun Road in Glacier National Park. The 51-mile stretch of scenic road ... More
Obsidian Creek Bridge, Spanning Obsidian Creek at Indian Creek Campgro...
Significance: Obsidian Creek Bridge is one of two remaining Army Corps of Engineers bridges in Yellowstone National Park. It represents the significant role that the Corps of Engineers played in the early year... More
Tremont Station Bridge, Pierceville Road, spanning Conrail tracks, War...
Significance: The Tremont Station Bridge is one of the oldest metal truss bridges in Massachusetts and the earliest to incorporate J.H. Linville's wide, upset-ended eyebars, a feature which would become standar... More
Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake...
Significance: Fishing 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 philos... More
Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake...
Significance: Fishing 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 philos... More
Firehole River Bridge, Spanning Firehole River at Fountain Freight Roa...
Significance: This bridge is one of two remaining Army Corps of Engineers bridges in Yellowstone National Park. It represents the significant role that the Corps of Engineers played in the early years of road ... More
Firehole River Bridge, Spanning Firehole River at Fountain Freight Roa...
Significance: This bridge is one of two remaining Army Corps of Engineers bridges in Yellowstone National Park. It represents the significant role that the Corps of Engineers played in the early years of road ... More
Gilpin's Falls Covered Bridge, Spanning North East Creek at Former (By...
Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J... More
Gilpin's Falls Covered Bridge, Spanning North East Creek at Former (By...
Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J... More
Firehole River Bridge, Spanning Firehole River near Morning Glory Pool...
Significance: Firehole River Bridge typifies the early design philosophy of the National Park Service, which was to use indigenous materials to harmonize manmade features with their natural surroundings. This ... More
Schell Memorial Bridge, Spanning Connecticut River on East Northfield ...
Significance: The Schell Memorial Bridge is the third oldest of five known Pennsylvania truss bridges identified in the Massachusetts Department of Public Works database. It is a unique variation at least in... More
King's Bridge, Spanning Laurel Hill Creek at bypassed State Highway No...
Significance: Although the history of this bridge has not been thoroughly documented, physical evidence suggests that King's Bridge was originally built in the mid-nineteenth century and largely rebuilt in 1906... More
Pine Grove Bridge, Spanning Octoraro Creek at Ashville & Forge Roads, ...
Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder ... More
Pine Grove Bridge, Spanning Octoraro Creek at Ashville & Forge Roads, ...
Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder ... More
Pine Grove Bridge, Spanning Octoraro Creek at Ashville & Forge Roads, ...
Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder ... 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
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
Butler Bridge, Spans Housatonic River on Butler Road (North Glendale R...
Significance: The Butler Bridge is an apparently unique example of a small highway bridge designed by the pre-eminent American bridge engineer George Shattuck Morison, who is remembered primarily for his long-s... 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
Cedar Street Bridge, Spanning Kinnickinnic River, on Cedar Street, Riv...
Significance: The Cedar Street Bridge is one of two steel arch bridges remaining in the State of Wisconsin. The Minneapolis Steel and Machinery Company, that built the bridge, was a regionally significant comp... More
Cedar Street Bridge, Spanning Kinnickinnic River, on Cedar Street, Riv...
Significance: The Cedar Street Bridge is one of two steel arch bridges remaining in the State of Wisconsin. The Minneapolis Steel and Machinery Company, that built the bridge, was a regionally significant comp... More
Cedar Street Bridge, Spanning Kinnickinnic River, on Cedar Street, Riv...
Significance: The Cedar Street Bridge is one of two steel arch bridges remaining in the State of Wisconsin. The Minneapolis Steel and Machinery Company, that built the bridge, was a regionally significant comp... More
Bay State Bridge, Spanning Mill River on Clement Street, Northampton, ...
Significance: The Bay State Bridge is the sixth oldest of nine Pratt through trusses in Massachusetts, identified in the Massachusetts Department of Public Works database. It has a somewhat uncommon upper late... More
Eleventh Street Bridge, Spanning Turners Fall Canal on Eleventh Street...
Significance: The Eleventh Street Bridge is a unique configuration of a double-intersection Warren through truss, with a pair of trusses on either side of the roadway, and lateral bracing between each pair, but... More
Eleventh Street Bridge, Spanning Turners Fall Canal on Eleventh Street...
Significance: The Eleventh Street Bridge is a unique configuration of a double-intersection Warren through truss, with a pair of trusses on either side of the roadway, and lateral bracing between each pair, but... More
Eleventh Street Bridge, Spanning Turners Fall Canal on Eleventh Street...
Significance: The Eleventh Street Bridge is a unique configuration of a double-intersection Warren through truss, with a pair of trusses on either side of the roadway, and lateral bracing between each pair, but... More
Lower Rollstone Street Bridge, Spanning Nashua River on Rollstone Stre...
Significance: The (Lower) Rollstone Street Bridge is one of only five known surviving Parker patent trusses in the United States, and the oldest of the three located in Massachusetts. It is also one of the two... More
Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloi...
Significance: The Turtleville Iron Bridge carries Lather Road 140 feet, from abutment face to abutment face, across Turtle Creek. It was built in 1887 by the Wisconsin Bridge and Iron Company, and is a Pratt t... More
Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloi...
Significance: The Turtleville Iron Bridge carries Lather Road 140 feet, from abutment face to abutment face, across Turtle Creek. It was built in 1887 by the Wisconsin Bridge and Iron Company, and is a Pratt t... More
Cub Creek Bridge, Spanning Cub Creek at East Entrance Road, Lake, Teto...
Significance: Cub 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 phil... More
Merrimac Bridge, Spanning Merrimac River on Bridge Street, Haverhill, ...
Significance: The Merrimac Bridge is located on a site which has been utilized as a major river crossing since the seventeenth century. It contains the oldest moveable span identified in the Massachusetts Depa... More
Merrimac Bridge, Spanning Merrimac River on Bridge Street, Haverhill, ...
Significance: The Merrimac Bridge is located on a site which has been utilized as a major river crossing since the seventeenth century. It contains the oldest moveable span identified in the Massachusetts Depa... More
Merrimac Bridge, Spanning Merrimac River on Bridge Street, Haverhill, ...
Significance: The Merrimac Bridge is located on a site which has been utilized as a major river crossing since the seventeenth century. It contains the oldest moveable span identified in the Massachusetts Depa... More
Mill Bridge, Spanning Little Wolf River on Mill Street, Scandinavia, W...
Significance: The Mill Bridge is the village's main thoroughfare across the Little Wolf River. Its construction in 1907 was part of a general economic boom in the village. The Mill Bridge is an excellent exam... 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
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More
Going-to-the-Sun Road, West Glacier, Flathead County, MT
Significance: Going-to-the-Sun Road is a 51-mile stretch of scenic mountain road in Glacier National Park. The road is significant as a unique engineering accomplishment of the early twentieth century, in that... More