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Turn-of-River Bridge, Spanning Rippowam River on Old North Stamford Road, Stamford, Fairfield County, CT

Turn-of-River Bridge, Spanning Rippowam River on Old North Stamford Ro...

2013 Leicester B. Holland Prize, First Place Significance: With the exception of Gustav Lindenthal's Smithfield Street Bridge in Pittsburgh, PA, The Berlin Iron Bridge Company was the only manufacturer of lenti... More

Hotchkiss Bridge, Spanning North Fork River on County Road 3400, Hotchkiss, Delta County, CO

Hotchkiss Bridge, Spanning North Fork River on County Road 3400, Hotch...

Significance: Erected using steel components rolled by the Lackawanna Steel Company, the Hotchkiss Bridge was a locally important crossing of the North Fork River. Built by Colorado's most prolific bridge contr... More

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...

Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...

Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...

Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...

Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More

Promenade Street Bridge, Spanning Woonasquatucket & Moshassuck Rivers, Providence, Providence County, RI

Promenade Street Bridge, Spanning Woonasquatucket & Moshassuck Rivers,...

Significance: The bridge is historically significant as part of the station and East Side Tunnel viaduct which contributed to the regional rail transportation network. Unique construction techniques make the s... More

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congress Street, Boston, Suffolk County, MA

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...

Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congress Street, Boston, Suffolk County, MA

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...

Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congress Street, Boston, Suffolk County, MA

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...

Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congress Street, Boston, Suffolk County, MA

Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...

Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More

Fishing Bridge, Spanning Yellowstone River at East Entrance Road, Lake, Teton County, WY

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, Teton County, WY

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, Teton County, WY

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

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Picryl description: Public domain image of a fort tower, stone walls, fortification, 18th-19th century, free to use, no copyright restrictions.

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Picryl description: Public domain image of an old ancient city, historic place, stone building architecture, free to use, no copyright restrictions.

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

Public domain photograph - historical image of Nebraska, United States, free to use, no copyright restrictions image - Picryl description

Moore Road Bridge, Spannning North Fork Creek at Moore Road, Unionville, Bedford County, TN

Moore Road Bridge, Spannning North Fork Creek at Moore Road, Unionvill...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Portland & Southwestern Railroad Tunnel, Willamette Meridian, Chapman, Columbia County, OR

Portland & Southwestern Railroad Tunnel, Willamette Meridian, Chapman,...

Significance: The Portland and Southwestern Railroad Tunnel is one of the longer semi-temporary railroad tunnels built for logging transport in Oregon and the only tunnel to cross the divide of the Oregon coast... More

Portland & Southwestern Railroad Tunnel, Willamette Meridian, Chapman, Columbia County, OR

Portland & Southwestern Railroad Tunnel, Willamette Meridian, Chapman,...

Significance: The Portland and Southwestern Railroad Tunnel is one of the longer semi-temporary railroad tunnels built for logging transport in Oregon and the only tunnel to cross the divide of the Oregon coast... More

Roubideau Bridge, Spanning Gunnison River at County Road G50R, Delta, Delta County, CO

Roubideau Bridge, Spanning Gunnison River at County Road G50R, Delta, ...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodbye Creek at Munson Valley Road, Klamath Falls, Klamath County, OR

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodby...

Significance: This is one of the earliest examples of glue-laminate bridge work in America. Survey number: HAER OR-107-A Building/structure dates: 1954 Initial Construction

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodbye Creek at Munson Valley Road, Klamath Falls, Klamath County, OR

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodby...

Significance: This is one of the earliest examples of glue-laminate bridge work in America. Survey number: HAER OR-107-A Building/structure dates: 1954 Initial Construction

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodbye Creek at Munson Valley Road, Klamath Falls, Klamath County, OR

Crater Lake National Park Roads, Goodbye Creek Bridge, Spanning Goodby...

Significance: This is one of the earliest examples of glue-laminate bridge work in America. Survey number: HAER OR-107-A Building/structure dates: 1954 Initial Construction

Pacheco Creek Bridge, San Felipe Road ,spanning Pacheco Creek, San Felipe, Santa Clara County, CA

Pacheco Creek Bridge, San Felipe Road ,spanning Pacheco Creek, San Fel...

Significance: The Pacheco Creek Bridge is one of only three extant truss bridges in Santa Clara County and is the sole remaining truss bridge in San Benito County. Representing a type, period and method of con... More

Pacheco Creek Bridge, San Felipe Road ,spanning Pacheco Creek, San Felipe, Santa Clara County, CA

Pacheco Creek Bridge, San Felipe Road ,spanning Pacheco Creek, San Fel...

Significance: The Pacheco Creek Bridge is one of only three extant truss bridges in Santa Clara County and is the sole remaining truss bridge in San Benito County. Representing a type, period and method of con... More

Exchange Bridge, Spanning Providence River, Providence, Providence County, RI

Exchange Bridge, Spanning Providence River, Providence, Providence Cou...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Exchange Bridge, Spanning Providence River, Providence, Providence County, RI

Exchange Bridge, Spanning Providence River, Providence, Providence Cou...

Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.

River Drive Overpass, Spanning River Drive (County Route No. 507) at U.S. Route 46, Elmwood Park, Bergen County, NJ

River Drive Overpass, Spanning River Drive (County Route No. 507) at U...

Significance: The River Drive Overpass is a typical example of a single span, multiple stringer, encased steel highway overpass built during the tenure of Morris Goodkind, chief bridge engineer for the New Jers... More

Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau, Owyhee County, ID

Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau,...

Picryl description: Public domain image of a river or lake, forest, trees, water stream, free to use, no copyright restrictions.

Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

Falls Bridge, Spanning Schuylkill River, connecting East & West River ...

Significance: The Falls Bridge is a unique and well-preserved example of the Petit through truss design, capable of carrying a roadway on both its upper and lower chords. The upper deck remains incomplete, but... More

Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

Falls Bridge, Spanning Schuylkill River, connecting East & West River ...

Significance: The Falls Bridge is a unique and well-preserved example of the Petit through truss design, capable of carrying a roadway on both its upper and lower chords. The upper deck remains incomplete, but... More

New York, New Haven & Hartford Railroad, Mystic River Bridge, Spanning Mystic River between Groton & Stonington, Groton, New London County, CT

New York, New Haven & Hartford Railroad, Mystic River Bridge, Spanning...

Significance: The Mystic River Bridge is a center bearing, through truss swing bridge. It is significant as part of the transportation link in the shoreline route of the New York, New Haven and Hartford Railro... More

Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, Dutchess County, NY

Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...

Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of Virgin River on Zion-Mount Carmel Highway, Springdale, Washington County, UT

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...

Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of Virgin River on Zion-Mount Carmel Highway, Springdale, Washington County, UT

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...

Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of Virgin River on Zion-Mount Carmel Highway, Springdale, Washington County, UT

Zion-Mount Carmel Highway, Virgin River Bridge, Spanning North Fork of...

Significance: Although partially reconstructed in 1960, the Virgin River Bridge retains its structural integrity. Attractive and well-executed, the bridge is a three-span, 'I' beam structure, which was skillfu... More

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin Falls, Twin Falls County, ID

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...

Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin Falls, Twin Falls County, ID

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...

Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin Falls, Twin Falls County, ID

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...

Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin Falls, Twin Falls County, ID

Twin Falls-Jerome Bridge, U.S. Highway 93 Spanning Snake River, Twin F...

Significance: The bridge was built by The Union Bridge Company of Portland, Oregon. It is a cantilever deck truss that rises 550 feet above the height of the River. At the time of construction it was reported... More

Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips & Bridges, Bounded by Observer, Newark & River Streets, Hudson River, Hoboken, Hudson County, NJ

Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...

Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More

Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips & Bridges, Bounded by Observer, Newark & River Streets, Hudson River, Hoboken, Hudson County, NJ

Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...

Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More

Uintah Railway, Whiskey Creek Trestle, Baxter Pass Road & Whiskey Creek Road, Rangely, Rio Blanco County, CO

Uintah Railway, Whiskey Creek Trestle, Baxter Pass Road & Whiskey Cree...

Significance: It is the last remaining bridge along the abandoned Uintah Railway in Colorado. The Uintah Railway was built during 1905-1906 to haul gilsonite from Dragon, Utah to Mack, Colorado. This was a narr... More

Kentucky Route 49 Bridge, Spanning Rolling Fork River, Bradfordsville, Marion County, KY

Kentucky Route 49 Bridge, Spanning Rolling Fork River, Bradfordsville,...

Significance: In January 1982, there were six Whipple-Murphy trusses in the State. The Kentucky Route 49 Bridge is the oldest Whipple-Murphy bridge in Kentucky. Survey number: HAER KY-17 Building/structure d... More

New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning Shaw's Cove, New London, New London County, CT

New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning ...

Significance: The Shaw Cove's Bridge is a forged steel rim-bearing swing bridge. It is a single-span, pin-connected Pratt through truss with thin diagonal eye-bars serving as tension members. It is significan... More

New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning Shaw's Cove, New London, New London County, CT

New York, New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning ...

Significance: The Shaw Cove's Bridge is a forged steel rim-bearing swing bridge. It is a single-span, pin-connected Pratt through truss with thin diagonal eye-bars serving as tension members. It is significan... More

Manchester Street Bridge, Spanning Baraboo River on Manchester Street, Baraboo, Sauk County, WI

Manchester Street Bridge, Spanning Baraboo River on Manchester Street,...

Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t... More

J. H. Millhollin Memorial Bridge, Spanning Ocmulgee River at Blackshear Road, Pridgen, Coffee County, GA

J. H. Millhollin Memorial Bridge, Spanning Ocmulgee River at Blackshea...

Significance: The J.H. Millhollin Bridge is one of only four remaining swing span bridges recorded in Georgia. The bridge, composed of a Camelback through truss and a Warren through truss swing span, is the on... More

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washington County, ID

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washingto...

Significance: One of only a few Idaho bridges built by prominent western contractor Charles G. Sheely. One of the first steel bridges in Washington County and may have set standards for local steel bridge buil... More

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washington County, ID

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washingto...

Significance: One of only a few Idaho bridges built by prominent western contractor Charles G. Sheely. One of the first steel bridges in Washington County and may have set standards for local steel bridge buil... More

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washington County, ID

Burton Road Bridge, Spanning Little Weiser River, Cambridge, Washingto...

Significance: One of only a few Idaho bridges built by prominent western contractor Charles G. Sheely. One of the first steel bridges in Washington County and may have set standards for local steel bridge buil... More

Steel Bridge, Spanning Jackson Road at Confederate Avenue, Vicksburg, Warren County, MS

Steel Bridge, Spanning Jackson Road at Confederate Avenue, Vicksburg, ...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Steel Bridge, Spanning Jackson Road at Confederate Avenue, Vicksburg, Warren County, MS

Steel Bridge, Spanning Jackson Road at Confederate Avenue, Vicksburg, ...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Boldman Bridge, Spanning Levisa Fork, Pikeville, Pike County, KY

Boldman Bridge, Spanning Levisa Fork, Pikeville, Pike County, KY

Significance: The Boldman Bridge is a rare surviving example of a swinging suspension bridge, which is a distinctive cultural feature of Eastern Kentucky. The east tower is original, constructed of I-beams and... More

Woonasquatucket Bridge, Spanning Woonasquatucket River, Providence, Providence County, RI

Woonasquatucket Bridge, Spanning Woonasquatucket River, Providence, Pr...

Significance: The bridge, unique in Rhode Island, is historically significant because of its large number of parallel trusses. Survey number: HAER RI-28 Building/structure dates: 1892- 1893 Initial Constru... More

Fifth Street Bridge, U.S. 50 at Colorado River, Grand Junction, Mesa County, CO

Fifth Street Bridge, U.S. 50 at Colorado River, Grand Junction, Mesa C...

Survey number: HAER CO-41 Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description

Fifth Street Bridge, U.S. 50 at Colorado River, Grand Junction, Mesa County, CO

Fifth Street Bridge, U.S. 50 at Colorado River, Grand Junction, Mesa C...

Survey number: HAER CO-41 Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson Avenue, Delancy Street, & South Street on Routes 1 & 9 Southbound, Newark, Essex County, NJ

Route 1 Extension, Southbound Viaduct, Spanning Conrail Yards, Wilson ...

Significance: This viaduct is part of the Route 1 Extension, an early example of planned, limited access, road construction built to carry high speed automobile and heavy commercial traffic. Designed and const... More

Pigtail Bridge, Hot Springs, Fall River County, SD

Pigtail Bridge, Hot Springs, Fall River County, SD

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

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

Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY

Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY

Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More

Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY

Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY

Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More

Philadelphia & Reading Railroad, Wissahickon Creek Viaduct, Spanning Wissahickon Creek, north of Ridge Avenue Bridge, Philadelphia, Philadelphia County, PA

Philadelphia & Reading Railroad, Wissahickon Creek Viaduct, Spanning W...

Significance: The Wissahickon Creek Viaduct marks the beginning of a resurgence in major stone arch bridge construction on American railroads after the panic of 1873. Unprocessed Field note material exists for... More

Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New Castle County, DE

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 Castle County, DE

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 Castle County, DE

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 Castle County, DE

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 Castle County, DE

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

Pittsburgh & Steubenville Extension Railroad Tunnel, Between Fifth & Sixth Streets, East of Grant Street, Pittsburgh, Allegheny County, PA

Pittsburgh & Steubenville Extension Railroad Tunnel, Between Fifth & S...

Significance: The Pittsburgh and Steubenville Extension Railroad Tunnel was a section of the Pittsburgh rail link between the Pennsylvania Railroad's western terminus and the eastern terminus of the Steubenvill... More

Pittsburgh & Steubenville Extension Railroad Tunnel, Between Fifth & Sixth Streets, East of Grant Street, Pittsburgh, Allegheny County, PA

Pittsburgh & Steubenville Extension Railroad Tunnel, Between Fifth & S...

Significance: The Pittsburgh and Steubenville Extension Railroad Tunnel was a section of the Pittsburgh rail link between the Pennsylvania Railroad's western terminus and the eastern terminus of the Steubenvill... More

Bonner's Ferry Bridge, Spanning Kootenai River, Bonners Ferry, Boundary County, ID

Bonner's Ferry Bridge, Spanning Kootenai River, Bonners Ferry, Boundar...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell County, MT

Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell Count...

Survey number: HAER MT-25 Building/structure dates: 1894 Building/structure dates: 1911

Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell County, MT

Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell Count...

Survey number: HAER MT-25 Building/structure dates: 1894 Building/structure dates: 1911

Atherton Bridge, Spanning Nashua River on Bolton Road, Lancaster, Worcester County, MA

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, Worcester County, MA

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, Worcester County, MA

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, Worcester County, MA

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

Vicksburg National Military Park Roads & Bridges, Melan Arch Bridges, Spanning various tributaries at Confederate Avenue, Vicksburg, Warren County, MS

Vicksburg National Military Park Roads & Bridges, Melan Arch Bridges, ...

Significance: The nine Melan arch viaducts on Union Avenue were an integral part of the overall tour route through Vicksburg National Military Park, providing visitors safe and easy access to points of interest... More

Vicksburg National Military Park Roads & Bridges, Melan Arch Bridges, Spanning various tributaries at Confederate Avenue, Vicksburg, Warren County, MS

Vicksburg National Military Park Roads & Bridges, Melan Arch Bridges, ...

Significance: The nine Melan arch viaducts on Union Avenue were an integral part of the overall tour route through Vicksburg National Military Park, providing visitors safe and easy access to points of interest... More

Kentucky Route 762 Bridge, Spanning South Fork of Panther Creek, Owensboro, Daviess County, KY

Kentucky Route 762 Bridge, Spanning South Fork of Panther Creek, Owens...

Significance: Good representative example of a pin-connected through truss. Only example in Kentucky built by the Wrought Iron Bridge Company (Ohio). Survey number: HAER KY-8 Building/structure dates: 1897 I... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

Bayonne Bridge, Spanning Kill Van Kull between Bayonne & Staten Island, Bayonne, Hudson County, NJ

Bayonne Bridge, Spanning Kill Van Kull between Bayonne & Staten Island...

Significance: Bayonne Bridge is significant as the world's longest steel bridge for nearly half a century, the first use of manganese steel (for main arch ribs and rivets), and the use of falsework for construc... More

Zion-Mount Carmel Highway, Tunnel, Two miles east of Zion Canyon Scenic Drive, Springdale, Washington County, UT

Zion-Mount Carmel Highway, Tunnel, Two miles east of Zion Canyon Sceni...

Significance: The 5,613-foot long, rock-faced Zion-Mount Carmel Tunnel with concrete spines was completed in 1930 and retains structural integrity. It is one of the most spectacular manmade sites at Zion Natio... More

Zion-Mount Carmel Highway, Tunnel, Two miles east of Zion Canyon Scenic Drive, Springdale, Washington County, UT

Zion-Mount Carmel Highway, Tunnel, Two miles east of Zion Canyon Sceni...

Significance: The 5,613-foot long, rock-faced Zion-Mount Carmel Tunnel with concrete spines was completed in 1930 and retains structural integrity. It is one of the most spectacular manmade sites at Zion Natio... More

Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridge Road, Cleveland, Blount County, AL

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

Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridge Road, Cleveland, Blount County, AL

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

Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridge Road, Cleveland, Blount County, AL

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

Tenth Street Bridge, Spanning Missouri River, Great Falls, Cascade County, MT

Tenth Street Bridge, Spanning Missouri River, Great Falls, Cascade Cou...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Tenth Street Bridge, Spanning Missouri River, Great Falls, Cascade County, MT

Tenth Street Bridge, Spanning Missouri River, Great Falls, Cascade Cou...

Public domain photograph of construction architecture design, diagram, free to use, no copyright restrictions image - Picryl description

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