[The rialto, Venice] - Public domain scenic drawing
Poole, no. 23. Public domain photograph of 19th century drawing, free to use, no copyright restrictions image - Picryl description
[Rustic bridge in park, Ann Arbor, Mich.]
Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.
Red Rock Falls, Henryville, Pennsylvania
Picryl description: Public domain image of a waterfall, cascade, water stream, free to use, no copyright restrictions.
The Bridge, Roaring Brook, Mich
Corresponding glass transparency (with same series code) available on videodisc frame 1A-30494. "G 3233" on negative. Detroit Publishing Co. no. 019021. Gift; State Historical Society of Colorado; 1949.
Looking north, rear view, Old Club, St. Clair Flats, Mich.
Title from jacket. "518-T" on negative. Detroit Publishing Co. no. 500931. Gift; State Historical Society of Colorado; 1949.
[George Fisher Baker house, Tuxedo Park, New York. Bridge]
Site History. House Architecture: James Brown Lord, 1887 for Pierre Lorillard, acquired by George Fisher Baker in 1895. Landscape: Clarence Fowler, circa 1912. Today: House but not garden extant. On slide (hand... More
Fuller House, Beaufort, S.C - A black and white photo of a dock with a...
Photograph shows view of the residence and headquarters of Union Major General Rufus Saxton at Whitehall ferry landing during the Union occupation of the Port Royal area. Purchase; Robin Stanford; 2015; (DLC/PP... More
Minnehaha Falls, Detroit publishing company photo
"98" on negative. Corresponding glass transparency (same series code) available on videodisc frame 1A-28886. Transparency copyrighted 1898. Detroit Publishing Co. no. 04692. Gift; State Historical Society of C... More
Dubois County Bridge No. 3002, Spanning Hunley Creek on State Road 64,...
Significance: The bridge is significant as one of the earliest and best examples of continuous concrete T-beam design undertaken by the Indiana State Highway Commission. Survey number: HAER IN-98
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
Rush's Mill Bridge, Spanning Plum Creek at North end of Union Canal Bi...
Significance: Rush's Mill Bridge is one of a small number of composite cast- and wrought-iron bridges yet remaining in the U.S. It is also one of the few existing examples employing the Howe-truss form in whic... More
Snake River Bridge at Lyons' Ferry, State Route 261 spanning Snake Riv...
Significance: The oldest extant steel cantilever bridge in Washington. It is a good example of early-twentieth century cantilever bridge construction using carbon steel. The structure served first at Vantage Fe... More
Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Passerelle in Lincoln Park, Spanning North Lake Shore Drive (U.S. Rout...
Significance: This pedestrian bridge, or passerelle, is the only one spanning North Lake Shore Drive, a major commuter route through Chicago's Lincoln Park. The strikingly modern welded steel arch with concret... More
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
Inselrue Bridge, Inselrue Avenue spanning Nashua Canal, Belle Isle Par...
Significance: This is one of more than a dozen small bridges built to carry traffic across the lagoons and canals which crisscross Belle Isle, Detroit's major public park in the late nineteenth and early twenti... More
Inselrue Bridge, Inselrue Avenue spanning Nashua Canal, Belle Isle Par...
Significance: This is one of more than a dozen small bridges built to carry traffic across the lagoons and canals which crisscross Belle Isle, Detroit's major public park in the late nineteenth and early twenti... More
Inselrue Bridge, Inselrue Avenue spanning Nashua Canal, Belle Isle Par...
Significance: This is one of more than a dozen small bridges built to carry traffic across the lagoons and canals which crisscross Belle Isle, Detroit's major public park in the late nineteenth and early twenti... More
Inselrue Bridge, Inselrue Avenue spanning Nashua Canal, Belle Isle Par...
Significance: This is one of more than a dozen small bridges built to carry traffic across the lagoons and canals which crisscross Belle Isle, Detroit's major public park in the late nineteenth and early twenti... More
River Vale Bridge, Spanning White River on County Road 27, Bedford, La...
Significance: The bridge is one of the best of ten surviving examples of a pin-connected Pennsylvania Through Truss with sub-ties one in the state of Indiana. This bridge is of local significance. Survey numb... More
River Vale Bridge, Spanning White River on County Road 27, Bedford, La...
Significance: The bridge is one of the best of ten surviving examples of a pin-connected Pennsylvania Through Truss with sub-ties one in the state of Indiana. This bridge is of local significance. Survey numb... More
Dewey Bridge, Spanning Colorado River at State Highway 128, Cisco, Gra...
Significance: When constructed, the Dewey Bridge was the second longest suspension bridge west of the Mississippi River. It remains the longest suspension bridge in the State of Utah. Unprocessed Field note m... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Veterans Memorial Park & Parkway, M-120 Northbound Bridge, Spanning Ce...
Significance: The Veterans Memorial Park and Parkway, M-120 Northbound Bridge derives its significance by its historical association with the Veterans Memorial Park. The park and bridge are early examples of l... More
Veterans Memorial Park & Parkway, M-120 Northbound Bridge, Spanning Ce...
Significance: The Veterans Memorial Park and Parkway, M-120 Northbound Bridge derives its significance by its historical association with the Veterans Memorial Park. The park and bridge are early examples of l... More
Pearl Street Bridge, Spanning Grand River at Pearl Street, Grand Rapid...
Significance: The bridge is a good example of open spandrel type arch construction, as described in engineering textbooks published during the first quarter of the twentieth century. This type of bridge constr... More
North Platte River Bridge No. 1210, Casper, Natrona County, WY
Significance: This bridges is a feature associated with the Chicago and North Western Railway, a National Register eligible linear district. The bridge is one of only two concrete and steel bridges on the Casp... More
Blackhoof Street Bridge, Spanning Miami-Erie Canal, New Bremen, Auglai...
Significance: The Blackhoof Street Bridge is a rare example of a bowstring bridge whose major components are of cast iron. The bridge is also an early example of the work of David H. Morrison, founder of the C... More
Blackhoof Street Bridge, Spanning Miami-Erie Canal, New Bremen, Auglai...
Significance: The Blackhoof Street Bridge is a rare example of a bowstring bridge whose major components are of cast iron. The bridge is also an early example of the work of David H. Morrison, founder of the C... More
Blackhoof Street Bridge, Spanning Miami-Erie Canal, New Bremen, Auglai...
Significance: The Blackhoof Street Bridge is a rare example of a bowstring bridge whose major components are of cast iron. The bridge is also an early example of the work of David H. Morrison, founder of the C... More
Parshallburg Bridge, Spanning Shiawassee River, Chesaning, Saginaw Cou...
Significance: Constructed in 1889, this single span bridge is the only Michigan example and the oldest of three known surviving examples in the U.S. of the Thacher metal through truss bridge. Survey number: HAER MI-127
Parshallburg Bridge, Spanning Shiawassee River, Chesaning, Saginaw Cou...
Significance: Constructed in 1889, this single span bridge is the only Michigan example and the oldest of three known surviving examples in the U.S. of the Thacher metal through truss bridge. Survey number: HAER MI-127
Lake Street Bridge, Spanning Ruddiman Creek at Lake Shore Drive, Muske...
Significance: The Lake Street stone arch vehicular bridge in Muskegon, Michigan, is significant because it is representative of a brief period in the evolution in design of American bridges. Relatively few sto... More
Davison Freeway, Hamilton Avenue Bridge, Highland Park, Wayne County, ...
Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.
Hawk Street Viaduct, Albany, Albany County, NY
Picryl description: Public domain image of a bridge, train viaduct, free to use, no copyright restrictions.
Hawk Street Viaduct, Albany, Albany County, NY
Picryl description: Public domain image of a bridge, train viaduct, free to use, no copyright restrictions.
North Branch Quantico Creek Bridge, Prince William Forest Park, on NPS...
Significance: This bridge is representative of a common bridge type that became indigenous to the late nineteenth to early twentieth century landscape of America: a low Pratt pony metal truss bridge. The bridg... More
Bridge No. 5930, Spanning Mississippi River at Trunk Highway 43, Winon...
Unprocessed Field note material exists for this structure: N516 Unprocessed Field note material exists for this structure: N1087 Survey number: HAER MN-91
Bridge No. 5930, Spanning Mississippi River at Trunk Highway 43, Winon...
Unprocessed Field note material exists for this structure: N516 Unprocessed Field note material exists for this structure: N1087 Survey number: HAER MN-91
Bridge No. 5930, Spanning Mississippi River at Trunk Highway 43, Winon...
Unprocessed Field note material exists for this structure: N516 Unprocessed Field note material exists for this structure: N1087 Survey number: HAER MN-91
Norfolk Manufacturing Company Cotton Mill, 90 Milton Street, Dedham, N...
Significance: The 1835 mill is typical in scale of New England fabric production at the time, but is unusual because it was based on Rhode Island stone mills, rather than the more usual brick type found in Mass... More
Norfolk Manufacturing Company Cotton Mill, 90 Milton Street, Dedham, N...
Significance: The 1835 mill is typical in scale of New England fabric production at the time, but is unusual because it was based on Rhode Island stone mills, rather than the more usual brick type found in Mass... More
Henefer Bridge, Spanning Weber River at Center Street, Henefer, Summit...
Significance: The Henefer Bridge is a single-span pony truss bridge constructed in 1907-1908. The bridge is one of the few, if not the only, example of a pony truss with pinned connections built in the State o... More
Henefer Bridge, Spanning Weber River at Center Street, Henefer, Summit...
Significance: The Henefer Bridge is a single-span pony truss bridge constructed in 1907-1908. The bridge is one of the few, if not the only, example of a pony truss with pinned connections built in the State o... More
Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...
Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More
Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...
Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More
Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...
Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More
Kennedy Bridge, Spanning Flat Rock River at State Route 44, Rushville,...
Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm... More
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
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
Hopewell Road Bridge, Spanning Little Miami River, Loveland, Hamilton ...
Significance: The bridge is a good representative example of the Pennsylvania Through Truss design. The Ohio Department of Transportation had identified this as a "Selected" bridge and the Ohio Historic Preser... More
Hopewell Road Bridge, Spanning Little Miami River, Loveland, Hamilton ...
Significance: The bridge is a good representative example of the Pennsylvania Through Truss design. The Ohio Department of Transportation had identified this as a "Selected" bridge and the Ohio Historic Preser... More
Mosel Avenue Bridge, Spanning Kalamazoo River on Mosel Avenue, Kalamaz...
Significance: This three span bridge, with an overall length of 210 feet, is the second longest surviving concrete camelback bridge designed by the Michigan State Highway Department. All spans are of standard ... More
Mosel Avenue Bridge, Spanning Kalamazoo River on Mosel Avenue, Kalamaz...
Significance: This three span bridge, with an overall length of 210 feet, is the second longest surviving concrete camelback bridge designed by the Michigan State Highway Department. All spans are of standard ... More
Ferndale Road Bridge, Spanning Peshtigo River between Lake & Grover, W...
Significance: The Ferndale Road Bridge is one of the State's longest remaining examples of a Pratt overhead truss bridge. It was built shortly before the advent of the standardized construction methods of the ... More
Dosewallips River Bridge, U.S. Route 101 spanning Dosewallips River, B...
Significance: The Dosewallips River Bridge is an example of a riveted through Pettit truss with sub-struts and polygonal top chord (Pennsylvania truss). It is possibly the earliest example of the standard 240'... More
Bridge Street Bridge, Spanning Grand River at Bridge Street, Portland,...
Significance: The Bridge Street Bridge in Portland is a rare two-span metal through truss, with two spans 100 feet in length, featuring decorative treatment at the end posts. This is the oldest known surviving... 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
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Bridge of Pines, Ermatinger Drive in Irvine Park, Chippewa Falls, Chip...
Significance: In 1906, the city of Chippewa Falls established Irvine Park. The Bridge of Pines represents two phases of the park's development, In 1907 the Wisconsin Bridge and Iron Company erected a one-span... More
Passaic River Bridge, Spanning Passaic River on U.S. Route 46, Paterso...
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Spring Street Bridge, Spanning Duncan Creek, Chippewa Falls, Chippewa ...
Significance: The Spring Street Bridge is Wisconsin's only remaining example of the patented Marsh Rainbow Arch bridge design. James Barney Marsh, a native of North Lake, Wisconsin, developed designs for the c... More
Water Street Bridge, Spanning Boston & Maine Railroad tracks at Water ...
Significance: The bridge is one of 35 historic through girder bridges extant in the state of New Hampshire. It ranked fifth under the NHDOT bridge rating system. The bridge is technologically significant becaus... More
Water Street Bridge, Spanning Boston & Maine Railroad tracks at Water ...
Significance: The bridge is one of 35 historic through girder bridges extant in the state of New Hampshire. It ranked fifth under the NHDOT bridge rating system. The bridge is technologically significant becaus... More
Water Street Bridge, Spanning Boston & Maine Railroad tracks at Water ...
Significance: The bridge is one of 35 historic through girder bridges extant in the state of New Hampshire. It ranked fifth under the NHDOT bridge rating system. The bridge is technologically significant becaus... More
Bridalveil Fall Bridge No. 1, Spanning Bridalveil Creek on carriage ro...
part of Yosemite Roads and Bridges Recording Project, 1991; see HAER No. CA-117 for overview Significance: The three Bridalveil Fall bridges are the only surviving road bridges in the park dating to the adminis... More
West Sixth Street Bridge, Spanning Root River at West Sixth Street & K...
Public domain scan of an architecture diagram, architectural drawing, building plan, or design, free to use, no copyright restrictions - Picryl description.
Historic Columbia River Highway, Sandy River Bridge at Troutdale, Hist...
Significance: First modern bridge constructed on what became the Historic Columbia River Highway. Designed by the premier bridge engineering firm of Waddell and Harrington, which also created the 1912 Steel Br... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...
Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More
Boston Public Garden, Suspension Bridge, Boston Public Garden, Boston,...
Survey number: HAER MA-76 Public domain photograph of a bridge, arch over water, river, free to use, no copyright restrictions image - Picryl description
Fountain Island Bridge, Lakeside Park between Promen Drive & Fountain ...
Significance: The Fountain Island Bridge is one of seven remaining bowstring truss bridges in the State of Wisconsin. Survey number: HAER WI-23 Building/structure dates: ca. 1870 Initial Construction Buildin... More
Maple Street Bridge, Spanning New Jersey Transit tracks at Maple Stree...
Significance: The Maple Street Bridge is a contributing resource within the proposed Summit Historic District. The Maple Street Bridge is a component of an early grade separation project executed by the Delawa... More
Seventh Street Bridge, Spanning Haw Creek at Seventh Street, Columbus,...
Significance: This three-span, concrete bridge is a good example of early 20th century reinforced concrete bridge design and construction. Survey number: HAER IN-92
Seventh Street Bridge, Spanning Haw Creek at Seventh Street, Columbus,...
Significance: This three-span, concrete bridge is a good example of early 20th century reinforced concrete bridge design and construction. Survey number: HAER IN-92
Wabash County Bridge No. 509, Spanning Wabash River at Carroll & Smith...
Significance: One of three extant Pratts of this noted Wisconsin builder, the trusses appear to retain their original members including decoratively latticed portals, portal bracing, and guardrails. The namepl... More
Grant Avenue Bridge, Spanning Yakima River at Grant Avenue, Prosser, B...
Significance: The Grant Avenue Bridge is significant as the oldest and least altered example of a two span pin-connected Parker truss within the state. It is also the only existing highway bridge within the st... More
Sturgeon Road Bridge, Spanning Sturgeon River, Baraga, Baraga County, ...
Significance: The Sturgeon Road Bridge is significant as a long span, pony steel truss structure typical of that era of bridge construction. Survey number: HAER MI-73
Sturgeon Road Bridge, Spanning Sturgeon River, Baraga, Baraga County, ...
Significance: The Sturgeon Road Bridge is significant as a long span, pony steel truss structure typical of that era of bridge construction. Survey number: HAER MI-73
Sturgeon Road Bridge, Spanning Sturgeon River, Baraga, Baraga County, ...
Significance: The Sturgeon Road Bridge is significant as a long span, pony steel truss structure typical of that era of bridge construction. Survey number: HAER MI-73
Pine Mill Bridge, Spanning Pine Creek, Muscatine, Muscatine County, IA
Significance: By the 1880s, the pin-connected Pratt through truss was almost the exclusive structural type for medium-span roadway crossings in Iowa. The Pine Mill Bridge is distinguished among these by its ea... More
Horse Creek Covered Bridge, Spanning Horse Creek Road at Milepost 1.28...
Significance: The bridge served vehicular traffic until 1968. It is now bypassed and opened to pedestrian traffic only. The predecessor bridge at this location was a 103' covered span, built in 1904. The existi... More
Horse Creek Covered Bridge, Spanning Horse Creek Road at Milepost 1.28...
Significance: The bridge served vehicular traffic until 1968. It is now bypassed and opened to pedestrian traffic only. The predecessor bridge at this location was a 103' covered span, built in 1904. The existi... More
Nehemiah Jewett Bridge, Groton Street, spanning Nashua River, Pepperel...
Unprocessed Field note material exists for this structure: FN-42 Survey number: HABS MA-225 Building/structure dates: 1818 Initial Construction Building/structure dates: ca. 1920 Subsequent Work Building/st... More
Delphi Bridge on U.S. Route 421, Spanning Deer Creek at U.S. Route 421...
Significance: The concrete bridge is located within and contributes to the National Register of Historic Places-eligible Delphi Historic District. The structure is a good example of early 20th century reinforc... More
Basseĭn, pitai︠u︡shchīĭ turbinu ėlektr. st. Po puti k vodopadu. [Gagry...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Davison Freeway, Brush Street Avenue Bridge, Spanning Davison Freeway,...
Significance: One of four identical single-span bridges designed to carry major north-south arterial streets over the Davison Limited Highway, built to speed crosstown traffic through Highland Park. The others... More
Callowhill Street Bridge, Schuylkill River at Spring Garden & Callowhi...
Picryl description: Public domain image of a historic building in Philadelphia, Pennsylvania, free to use, no copyright restrictions.
Winkley Bridge, Spanning Little Red River adjacent to State Highway No...
Significance: The Winkley Bridge was an excellent example of a streamlined suspension bridge, and one of only two remaining suspension bridges in Arkansas, before its collapse in 1989. For a period of sixty ye... More
Steel Arch Bridge, Hennepin Avenue spanning west channel of Mississipp...
Significance: The Steel Arch bridge falls within the boundaries of the nationally registered St. Anthony Falls Historic District. The bridge was built in two longitudinal halves. The north half was constructed... More
Steel Arch Bridge, Hennepin Avenue spanning west channel of Mississipp...
Significance: The Steel Arch bridge falls within the boundaries of the nationally registered St. Anthony Falls Historic District. The bridge was built in two longitudinal halves. The north half was constructed... More
West Marshall Street Bridge, Marshall Street over Stony Creek, Norrist...
Significance: Two span, stone arch bridge; part of one of the most important East-West highways in Norristown. Survey number: HAER PA-54 Building/structure dates: 1854 Initial Construction Building/structure... More
Monroe Street Bridge, Spanning River Raisin at Monroe Street, Monroe, ...
Significance: The Monroe Street Bridge is an early example of a reinforced concrete cantilever girder bridge, a design developed in the late 1910s as an alternative to standard concrete arch bridge designs. Th... More
Monroe Street Bridge, Spanning River Raisin at Monroe Street, Monroe, ...
Significance: The Monroe Street Bridge is an early example of a reinforced concrete cantilever girder bridge, a design developed in the late 1910s as an alternative to standard concrete arch bridge designs. Th... More