Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Waterville Bridge, Spanning Swatara Creek at Appalachian Trail (moved ...
Significance: It is an example of a lenticular truss, so named because of the lens-like shape of its curved upper and lower chords. It is representative of the Berlin Iron Bridge Company's trademark bridge type... More
Waterville Bridge, Spanning Swatara Creek at Appalachian Trail (moved ...
Significance: It is an example of a lenticular truss, so named because of the lens-like shape of its curved upper and lower chords. It is representative of the Berlin Iron Bridge Company's trademark bridge type... More
Williams Road Bridge, Spanning Sugar Creek Middle Branch, Chapmanville...
Significance: Williams Road Bridge is a unique vernacular example of a late-nineteenth century pin-connected Pratt through truss adapted for re-use as a county bridge in the late twentieth century. It is of en... More
Williams Road Bridge, Spanning Sugar Creek Middle Branch, Chapmanville...
Significance: Williams Road Bridge is a unique vernacular example of a late-nineteenth century pin-connected Pratt through truss adapted for re-use as a county bridge in the late twentieth century. It is of en... More
Smithton Bridge, Spanning Youghiogheny River on State Road 981, Smitht...
Significance: The Smithton Bridge is the oldest remaining cantilever truss highway bridge in Pennsylvania. It is a typical example of the suspended span cantilever truss that was being built in the United Stat... More
Smithton Bridge, Spanning Youghiogheny River on State Road 981, Smitht...
Significance: The Smithton Bridge is the oldest remaining cantilever truss highway bridge in Pennsylvania. It is a typical example of the suspended span cantilever truss that was being built in the United Stat... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
South Street Bridge, Spans Pennsylvania Avenue, Wilkes-Barre Boulevard...
Significance: The South Street Bridge is an unusual, long span metropolitan bridge comprising thirteen concrete spans and two steel truss spans. While the concrete spans are representative, the trusses are unu... More
Brady Street Bridge, Spanning Monongahela River at South Twenty-second...
See also HABS PA-614 for additional documentation. Includes drawings. Significance: The Brady Street Bridge, contracted by the Schultz Bridge & Iron Co. of Pittsburgh, was a steel-riveted, through-highway bridg... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...
Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More
Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...
Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More
Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...
Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More
Three Sisters Bridges, Sixth Street Bridge, Spanning Allegheny River a...
Significance: The Three Sisters Bridges represent an adaptive engineering design response to political and technical concerns. County engineers successfully maneuvered around federally-mandated clearances, aest... More
Bridge Street Bridge, Spanning Little French Creek at Bridge Street, U...
Significance: The Bridge Street Bridge over Little French Creek in Union City is a Through Pratt Truss metal bridge. It crosses Little French Creek immediately below a dam and mill pond that provided water po... More
Bridge Street Bridge, Spanning Little French Creek at Bridge Street, U...
Significance: The Bridge Street Bridge over Little French Creek in Union City is a Through Pratt Truss metal bridge. It crosses Little French Creek immediately below a dam and mill pond that provided water po... More
Bridge Street Bridge, Spanning Little French Creek at Bridge Street, U...
Significance: The Bridge Street Bridge over Little French Creek in Union City is a Through Pratt Truss metal bridge. It crosses Little French Creek immediately below a dam and mill pond that provided water po... More
Phoenix Iron Company, Foundry Building, Main Street at Mill Street, Ph...
Significance: Iron work began on the banks of French Creek in 1783 and continued, weathering massive changes in ferrous metalworking techniques, for 200 years. The foundry produced castings ancillary to the Pho... More
St. Anthony Street Bridge, Spanning Buffalo Creek, Legislative Route 5...
Significance: The St. Anthony Street Bridge is significant in the areas of engineering and transportation, specifically for its age, size, length of truss for this age, and builder. The Champion Bridge Company... More
Memorial Avenue Bridge, Spanning Lycoming Creek, Williamsport, Lycomin...
Significance: The Memorial Avenue Bridge is significant for its architectural and engineering features. Important original items that contribute to the bridge's integrity are the plaque, the latticed sidewalk ... More
Market Street Bridge, Spanning East channel of Susquehanna River at Ma...
Significance: The river crossing where the bridge now stands had historically been the western gateway into Harrisburg. For over a century, spans here were operated by the Harrisburg Bridge Company, including t... More
Market Street Bridge, Spanning East channel of Susquehanna River at Ma...
Significance: The river crossing where the bridge now stands had historically been the western gateway into Harrisburg. For over a century, spans here were operated by the Harrisburg Bridge Company, including t... More
Upper Bridge at Slate Run, Spanning Pine Creek at State Route 414, Sla...
See also HAER PA-478 for related documentation. Includes written data. Significance: The bridge is a lattice truss, and unusual truss type that was built in the U.S. from about 1857 to the 1890s. Riveting all t... More
Keggereis Ford Bridge, Spanning West Branch Conococheague Creek at Sta...
Significance: Keggereis Ford Bridge is a multiple-span reinforced concrete arch bridge built by a regionally significant bridge contractor. It is of engineering interest for its rib arch design and its relativ... More
Harrison Avenue Bridge, Spanning Roaring Brook & Central Scranton Expr...
Significance: The bridge, a monumental structure spanning Roaring Brook between East and South Scranton, is a symbol of the city's progressive era in the early 20th century. A citizen's association formed to ad... More
McKee's Rocks Bridge, Spanning Ohio River at Chartiers Avenue (State R...
Significance: The bridge is an outstanding example of a long-span metal through arch bridge constructed by Allegheny County as part of an intensive bridge-building campaign during the late 1920s and early 1930s... More
Washington Crossing Bridge, Spanning Allegheny River at Fortieth Stree...
See also HABS PA-1179 for additional documentation. Includes drawings. Significance: The bridge is an outstanding example of a long-span metal deck arch bridge. Its unique architectural details, forged in a suc... More
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 ...
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
East Bloomsburg Bridge, Spanning Susquehanna River at Pennsylvania Rou...
Significance: The existing East Bloomsburg Bridge consists of six equal pin-connected through-truss spans of 190 foot length with two feet between end bearings at the piers for a total length of 1150 feet. The... More
East Bloomsburg Bridge, Spanning Susquehanna River at Pennsylvania Rou...
Significance: The existing East Bloomsburg Bridge consists of six equal pin-connected through-truss spans of 190 foot length with two feet between end bearings at the piers for a total length of 1150 feet. The... More
College Avenue Bridge, Pennsylvania Route 58/ Legislative Route 82 spa...
Significance: The College Avenue Bridge in Greenville, Pennsylvania, is a simple pony truss bridge that spans the Little Shenango River on the northern side of Greenville, providing access to the Shenango Valle... More
College Avenue Bridge, Pennsylvania Route 58/ Legislative Route 82 spa...
Significance: The College Avenue Bridge in Greenville, Pennsylvania, is a simple pony truss bridge that spans the Little Shenango River on the northern side of Greenville, providing access to the Shenango Valle... More
College Avenue Bridge, Pennsylvania Route 58/ Legislative Route 82 spa...
Significance: The College Avenue Bridge in Greenville, Pennsylvania, is a simple pony truss bridge that spans the Little Shenango River on the northern side of Greenville, providing access to the Shenango Valle... More
College Avenue Bridge, Pennsylvania Route 58/ Legislative Route 82 spa...
Significance: The College Avenue Bridge in Greenville, Pennsylvania, is a simple pony truss bridge that spans the Little Shenango River on the northern side of Greenville, providing access to the Shenango Valle... More
Wilson Shute Bridge, Spanning French Creek at State Road 2008 (formerl...
Significance: The Wilson Shute Bridge is one of the many civil engineering landmarks that document Pennsylvania's rich historic transportation heritage. As an example of a steel Pratt through truss, it represe... More
Pleasantville Covered Bridge, Spanning Little Manatawny Creek at Cover...
Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc... More
Phoenix Iron Company, French Creek Bridge, Spanning French Creek betwe...
Unprocessed Field note material exists for this structure: N595 Survey number: HAER PA-493-B
Phoenix Iron Company, French Creek Bridge, Spanning French Creek betwe...
Unprocessed Field note material exists for this structure: N595 Survey number: HAER PA-493-B
Catawissa Bridge, Spanning north branch of Susquehanna River, 3.5 mile...
Significance: The existing Catawissa Bridge, built in 1898 by the Pennsylvania Bridge Company of Beaver Falls, Pennsylvania, consists of four (4) steel through-truss spans, each 304 feet long, for a total lengt... More
Catawissa Bridge, Spanning north branch of Susquehanna River, 3.5 mile...
Significance: The existing Catawissa Bridge, built in 1898 by the Pennsylvania Bridge Company of Beaver Falls, Pennsylvania, consists of four (4) steel through-truss spans, each 304 feet long, for a total lengt... More
Catawissa Bridge, Spanning north branch of Susquehanna River, 3.5 mile...
Significance: The existing Catawissa Bridge, built in 1898 by the Pennsylvania Bridge Company of Beaver Falls, Pennsylvania, consists of four (4) steel through-truss spans, each 304 feet long, for a total lengt... More
Brown Street Bridge, Brown Street, spanning Oil Creek, Titusville, Cra...
Significance: The Brown Street Bridge is representative of the type of small steel and iron truss bridge that was favored by smaller municipalities and rural settlements during the last quarter of the nineteent... More
Brown Street Bridge, Brown Street, spanning Oil Creek, Titusville, Cra...
Significance: The Brown Street Bridge is representative of the type of small steel and iron truss bridge that was favored by smaller municipalities and rural settlements during the last quarter of the nineteent... More
Kralltown Road Bridge, Spanning Bermudian Creek at Kralltown Road (Sta...
Significance: It was built in 1884 by the Wrought Iron Bridge Company, a leading 19th century bridge fabricator and builder. It is a double-intersection Pratt through truss, a representative truss type used for... More
Kralltown Road Bridge, Spanning Bermudian Creek at Kralltown Road (Sta...
Significance: It was built in 1884 by the Wrought Iron Bridge Company, a leading 19th century bridge fabricator and builder. It is a double-intersection Pratt through truss, a representative truss type used for... More
Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, C...
Significance: The Christiana Borough Bridge is a rare survivor of the Whipple truss bridge structure with wrought iron Phoenix columns. Built in 1893-95 by the Pennsylvania Railroad during a period of railroad... More
Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, C...
Significance: The Christiana Borough Bridge is a rare survivor of the Whipple truss bridge structure with wrought iron Phoenix columns. Built in 1893-95 by the Pennsylvania Railroad during a period of railroad... More
Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, C...
Significance: The Christiana Borough Bridge is a rare survivor of the Whipple truss bridge structure with wrought iron Phoenix columns. Built in 1893-95 by the Pennsylvania Railroad during a period of railroad... More
Kellams Bridge, Spanning Delaware River at Stalker-Kellams Road (State...
Significance: It is one of the few short-span wire-cable suspension bridges remaining in Pennsylvania. It was altered extensively in 1936. Unprocessed Field note material exists for this structure: N446 Surve... More
Kellams Bridge, Spanning Delaware River at Stalker-Kellams Road (State...
Significance: It is one of the few short-span wire-cable suspension bridges remaining in Pennsylvania. It was altered extensively in 1936. Unprocessed Field note material exists for this structure: N446 Surve... More
Henry Avenue Bridge, Spanning Wissahickon Creek & Lincoln Drive at Hen...
Significance: This single-span, two-ribbed reinforced concrete arch bridge soars high over the Wissahickon Creek in Philadelphia's Fairmount Park. It is a late example of a masonry-clad reinforced concrete arch... More
Old Brownsville Bridge, Spanning Monongahela River & Water Street at S...
Significance: The Pennsylvania truss bridge spans the Monongahela River between Brownsville and West Brownsville. The bridge is heavily constructed of built-up members and eye-bars, and is a significant landmar... More
Campbell's Bridge, Spanning Unami Creek at Allentown Road (State Route...
See also HAER PA-478 for related documentation. Includes written data. Significance: The bridge is part of a once larger body of early short-span reinforced concrete bridges in Bucks County. It is the oldest op... More
South Eighth Street Viaduct, Spanning Little Lehigh Creek at Eighth St...
Significance: It is one of the earliest surviving example of "monumental" reinforced concrete construction. Initially planned in 1900 as a steel truss structure over the Little Lehigh Creek, the final result, b... More
Seitzville Road Bridge, Spanning South Branch Codorus Creek, Seitzvill...
Significance: Seitzville Road Bridge is the oldest extant reinforced concrete bridge in York County and an excellent example of early reinforced concrete arch bridge construction. The Nelson-Merydith Company o... More
Lower Bridge at English Center, Spanning Little Pine Creek at State Ro...
Significance: It is the only remaining bridge of two completed in 1891 to provide access to this once-important regional logging and tanning center. One of few surviving short-span roadway suspension bridges in... More
Phoenix Iron Company, Administration Building, Bridge Street at Church...
Survey number: HAER PA-493-F Public domain photograph of a house, residential property, free to use, no copyright restrictions image - Picryl description
Brick Arch Culvert over Master Street, Spanning dirt slope of Master S...
Significance: This single-span skew arch culvert features brick ribs, semi-counsel squared stone masonry spandrel walls, and ashlar voussoirs. It was built to provide access to important water mains and is skew... More
Bridge over Little Pine Creek, State Route 1026 over Little Pine Creek...
Significance: The bridge is an early example of a reinforced concrete open-spandrel arch bridge, noteworthy for its modern method of construction, and unusual shape and design. The two ribs of the arch and the ... More
Bridge over Little Pine Creek, State Route 1026 over Little Pine Creek...
Significance: The bridge is an early example of a reinforced concrete open-spandrel arch bridge, noteworthy for its modern method of construction, and unusual shape and design. The two ribs of the arch and the ... More
Knight Bridge, Township Route 413 over Catawissa Creek, Mainville, Col...
Significance: The bridge was constructed in 1893 to carry traffic over Catawissa Creek. Built by the nationally significant King Iron and Bridge Company of Cleveland, Ohio, the Columbia County Bridge No. 44 is ... More
Knight Bridge, Township Route 413 over Catawissa Creek, Mainville, Col...
Significance: The bridge was constructed in 1893 to carry traffic over Catawissa Creek. Built by the nationally significant King Iron and Bridge Company of Cleveland, Ohio, the Columbia County Bridge No. 44 is ... More
Allenwood Bridge, Spanning West Branch of Susquehanna River on State R...
Significance: Spanning the Susquehanna River at a long-established historic river crossing, the Allenwood Bridge is one of the oldest and longest spans crossing that river. Its builder, the Groton Bridge and M... More
Allenwood Bridge, Spanning West Branch of Susquehanna River on State R...
Significance: Spanning the Susquehanna River at a long-established historic river crossing, the Allenwood Bridge is one of the oldest and longest spans crossing that river. Its builder, the Groton Bridge and M... More
Allenwood Bridge, Spanning West Branch of Susquehanna River on State R...
Significance: Spanning the Susquehanna River at a long-established historic river crossing, the Allenwood Bridge is one of the oldest and longest spans crossing that river. Its builder, the Groton Bridge and M... More
Big Conestoga Creek Bridge No. 12, Spanning Conestoga River at Farmers...
Significance: Big Conestoga Creek Bridge No. 12 is a rare combination of cantilever, arch and through-girder forms in reinforced concrete. Lancaster County engineer Frank H. Shaw, designing to meet economic co... More
Wiconisco Canal Aqueduct No. 3, Spanning Powell Creek at State Route 1...
Significance: Originally a component of the Pennsylvania Canal system, this aqueduct was the largest bridge on the state-initiated and privately completed Wiconisco Canal. Hewn from the foot of Peter's Mountain... More
Inclined Plane Bridge, Spanning Stonycreek River at State Route 3022 S...
Significance: This single-span, pin-connected Pennsylvania through truss bridge was constructed across the Stonycreek River in conjunction with an inclined plane railway shortly after the Johnstown Flood of 189... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Monastery Road Bridge, Spanning Pennsylvania Railroad at Monastery Roa...
Significance: Monastery Road Bridge is a rare example of a pin-connected deck truss railroad bridge adapted for re-use as a roadway bridge. This site is of historical interest for its association with the Penn... More
Monastery Road Bridge, Spanning Pennsylvania Railroad at Monastery Roa...
Significance: Monastery Road Bridge is a rare example of a pin-connected deck truss railroad bridge adapted for re-use as a roadway bridge. This site is of historical interest for its association with the Penn... More
Monastery Road Bridge, Spanning Pennsylvania Railroad at Monastery Roa...
Significance: Monastery Road Bridge is a rare example of a pin-connected deck truss railroad bridge adapted for re-use as a roadway bridge. This site is of historical interest for its association with the Penn... More
Monastery Road Bridge, Spanning Pennsylvania Railroad at Monastery Roa...
Significance: Monastery Road Bridge is a rare example of a pin-connected deck truss railroad bridge adapted for re-use as a roadway bridge. This site is of historical interest for its association with the Penn... More
Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...
Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More
Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...
Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More
Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...
Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More
Roaring Creek Bridge, State Road 2005 spanning Roaring Creek in Locust...
Significance: The two-span, 97' long reinforced bridge at Slabtown over Roaring Creek has neo-classical balustrades making it one of the earliest examples of an architectonic deck arch bridge in the region. Al... More
Roaring Creek Bridge, State Road 2005 spanning Roaring Creek in Locust...
Significance: The two-span, 97' long reinforced bridge at Slabtown over Roaring Creek has neo-classical balustrades making it one of the earliest examples of an architectonic deck arch bridge in the region. Al... More
Allentown Road Bridge, Spanning Skippack Creek on Allentown Road, Fran...
Significance: The Allentown Road Bridge is a representative example of a small span masonry arch bridge built for 19th century highway traffic in Pennsylvania. It exhibits a regional stylistic variation, simil... More
Allentown Road Bridge, Spanning Skippack Creek on Allentown Road, Fran...
Significance: The Allentown Road Bridge is a representative example of a small span masonry arch bridge built for 19th century highway traffic in Pennsylvania. It exhibits a regional stylistic variation, simil... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
Washingtonville Bridge, Pennsylvania Legislative Route 47036, spanning...
Significance: The Washingtonville Bridge is a small span Pratt pony truss, fabricated by the Phoenix Bridge Company for the New York firm of Dean & Westbrook. It is a typical example, although a rare survivor,... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Waterville Bridge, Spanning Swatara Creek at Appalachian Trail (moved ...
Significance: It is an example of a lenticular truss, so named because of the lens-like shape of its curved upper and lower chords. It is representative of the Berlin Iron Bridge Company's trademark bridge type... More
Williams Road Bridge, Spanning Sugar Creek Middle Branch, Chapmanville...
Significance: Williams Road Bridge is a unique vernacular example of a late-nineteenth century pin-connected Pratt through truss adapted for re-use as a county bridge in the late twentieth century. It is of en... More
Smithton Bridge, Spanning Youghiogheny River on State Road 981, Smitht...
Significance: The Smithton Bridge is the oldest remaining cantilever truss highway bridge in Pennsylvania. It is a typical example of the suspended span cantilever truss that was being built in the United Stat... More