Bents

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the More

Drawing shows Bent's Fort on a plateau above the Arkansas River in eastern Colorado, near present-day Prowers. Cultivated trees stand to the right of the fort. William Bent erected a new establishment on the Ar More

Drawing shows Bent's Fort on a plateau above the Arkansas River in eastern Colorado, near present-day Prowers. Cultivated trees stand to the right of the fort. William Bent erected a new establishment on the Ar More

Drawing shows Bent's Fort on a plateau above the Arkansas River in eastern Colorado, near present-day Prowers. Cultivated trees stand to the right of the fort. William Bent erected a new establishment on the Ar More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and a More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: It is a reinforced concrete T-beam structure that was constructed as part of a federal program to construct railroad overpasses at high traffic, at-grade railroad crossings on Federal Aid highways More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The U.S. Route 76 Bridge over the CSX Railroad is one of the earliest extant bridges built under the auspices of the South Carolina State Highway Commission. It is a representative example of a r More

Significance: The Van Buren Bridge is a multiple-span structure consisting of a six-panel Pratt through truss, a ten-panel Parker through truss, and ten Warren pony truss approach spans. It is one of Missouri' More