Pennsylvania Railroad, Safe Harbor Bridge, Spanning mouth of Conestoga...
Significance: The bridge is unusual two-level structure built to carry two different Pennsylvania Railroad branches. The low-grade freight line on the upper level was chief engineer William H. Brown's last majo... More
South Fork Powder River Bridge, On West Service Road of I-25, Kaycee, ...
Picryl description: Public domain image of an arch bridge, stone architecture, free to use, no copyright restrictions.
Thirty-Sixth Street Bridge, Spanning Rabbit River, Hamilton, Allegan C...
Significance: The 36th Street bridge is one of the few pin connected, Parker Pony Highway Bridges surviving in Michigan. It was listed in the National Register of Historic Places in 1985. Survey number: HAER ... More
Duck Creek Bridge, Spanning Yellowstone River on Route 329, Southwest ...
Significance: The bridge is significant for its associations with the homestead boom in Montana. The bridge is an important representative example in Montana of the riveted Warren through truss. The bridge is a... More
Duck Creek Bridge, Spanning Yellowstone River on Route 329, Southwest ...
Significance: The bridge is significant for its associations with the homestead boom in Montana. The bridge is an important representative example in Montana of the riveted Warren through truss. The bridge is a... More
Duck Creek Bridge, Spanning Yellowstone River on Route 329, Southwest ...
Significance: The bridge is significant for its associations with the homestead boom in Montana. The bridge is an important representative example in Montana of the riveted Warren through truss. The bridge is a... More
Warrick County Bridge No. 266, Spanning Cypress Creek at County Road 5...
Significance: This bridge is an example of a pinned Pratt pony truss founded on caissons with one steel I-beam approach span at each end of the truss. This bridge is of significance because of the caisson foun... More
Warrick County Bridge No. 266, Spanning Cypress Creek at County Road 5...
Significance: This bridge is an example of a pinned Pratt pony truss founded on caissons with one steel I-beam approach span at each end of the truss. This bridge is of significance because of the caisson foun... More
Manchester Street Bridge, Spanning Merrimack River at Manchester Stree...
Significance: It is significant as the longest through truss bridge in New Hampshire. It is one of only four extant steel combination truss bridges in the state. It embodies the distinctive characteristics of t... More
Powder River Bridge, U.S. Highway 14/16, Arvada, Sheridan County, WY
Significance: The Powder River Bridge is a three-span, steel rigid connected continuous Pratt Deck truss. As one of only two major highway deck trusses built in Wyoming, and the only continuous vehicular truss... More
Powder River Bridge, U.S. Highway 14/16, Arvada, Sheridan County, WY
Significance: The Powder River Bridge is a three-span, steel rigid connected continuous Pratt Deck truss. As one of only two major highway deck trusses built in Wyoming, and the only continuous vehicular truss... More
McCann Road Bridge, Spanning Thornapple River at McCann Road, Hastings...
Significance: The McCann Road bridge is the oldest and one of the few multi-span, pin connected, Pratt Pony Highway Bridges surviving in Michigan. It was listed in the National Register of Historic Places in 1... More
Cambria Road Bridge, Spanning West branch of St. Joseph River on Cambr...
Significance: The Cambria Road Bridge is the only known surviving example of a bridge built by an Ohio company of this era in Michigan. Survey number: HAER MI-43 Building/structure dates: 1899 Initial Construction
Copper River & Northwest Railroad, Million Dollar Bridge, Spanning Cop...
Significance: One of two "impossible bridges" across the Copper R., one of unprecedented size and strength, built across the faces of two glaciers and key to the success of the CR&NWRR, which was to be the All ... More
Sulphur Fork Creek Bridge, Spanning Sulfur Fork Creek on Spring Road, ...
Significance: The Sulphur Fork Creek Bridge is a representative Pratt through truss. Generally typical in composition, it features unusual hip verticals. It is one of the first bridges in the State to have be... More
Double Intersection Warren Truss Bridge, Spanning Blackledge River, Co...
Significance: Typical of truss bridges at river crossings c. 1907, particularly as constructed by the New York, New Haven and Hartford Railroad in its upgrading o the then 40 year old line. Unlike similar brid... More
Double Intersection Warren Truss Bridge, Spanning Blackledge River, Co...
Significance: Typical of truss bridges at river crossings c. 1907, particularly as constructed by the New York, New Haven and Hartford Railroad in its upgrading o the then 40 year old line. Unlike similar brid... More
Eight Mile Creek Bridge, Spanning Eight Mile Creek at U.S. Highway 49,...
Significance: The Eight Mile Creek Bridge is an excellent example of a single-span pony Pratt steel truss bridge that historically was a very common bridge type in Arkansas. This bridge was constructed as part... More
Midvale Bridge, Bridge Street Spanning Weiser River, Midvale, Washingt...
Significance: The most substantial bridge by J.H. Forbes in the area. It was important in the early development of the community. The bridge was determined eligible for the National Register of Historic Place... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Bu...
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Miss... More
Finderne Avenue Bridge, County Route 533, spanning Railroad tracks, Ma...
Public domain photograph of attic, house frame, free to use, no copyright restrictions image - Picryl description
Saxton Bridge, Spanning Gunnison River on Delta County Road 650R, Delt...
Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description
Saxton Bridge, Spanning Gunnison River on Delta County Road 650R, Delt...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Saxton Bridge, Spanning Gunnison River on Delta County Road 650R, Delt...
Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description
Red Bridge, Spanning North Benson Creek, Frankfort, Franklin County, K...
Significance: Good example of a standard bridge design, popular during the late 19th century. Survey number: HAER KY-13 Building/structure dates: 1896 Initial Construction Building/structure dates: 1980 Subs... More
Red Bridge, Spanning North Benson Creek, Frankfort, Franklin County, K...
Significance: Good example of a standard bridge design, popular during the late 19th century. Survey number: HAER KY-13 Building/structure dates: 1896 Initial Construction Building/structure dates: 1980 Subs... More
Pennsylvania Railroad, Erie Railway Bridge, 0.2 mile South of Elgin Ro...
Survey number: HAER PA-34 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Little Cossatot River Bridge, Spanning Little Cossatot River at County...
Significance: The Little Cossatot River Bridge is a unique Arkansas example of a pony Warren steel truss with verticals. It contains several significant design details, such as a solid I-beam top chord and ang... More
Polley Lane Bridge, Spanning Yellow River at Polly Lane, Gilman, Taylo...
Significance: The Polley Lane Bridge is representative of Pratt overhead trusses built between 1895 and 1910. These bridges are a transitional group, between the wagon bridge of the mid-to-late nineteenth cent... More
Missouri River Bridge, Spanning Missouri River at Bridge Street, Craig...
Significance: The Missouri River Bridge at Craig was the second vehicular bridge constructed across the Missouri River in Montana. It provided access to the Montana Central Railroad station at Craig for the fa... More
Missouri River Bridge, Spanning Missouri River at Bridge Street, Craig...
Significance: The Missouri River Bridge at Craig was the second vehicular bridge constructed across the Missouri River in Montana. It provided access to the Montana Central Railroad station at Craig for the fa... More
North Fork Bridge, Spans North Fork of White River at State Highway 5,...
Significance: Designed by the Arkansas State Highway Department as a result of the unexpected cost involved in the erection of a proposed concrete deck arch bridge, the North Fork bridge was an early example of... More
Milk River Bridge, Spanning Milk River approximately one mile north of...
Significance: Constructed at the height of the Montana Homestead Boom (1909-1917), the Milk River Bridge facilitated the transportation of agricultural goods to the Great Northern Railway station at Tampico in ... More
Lost Bridge, Spanning Little Missouri River, twenty-three miles north ...
Significance: The Lost Bridge is a three-span, riveted Parker through truss, bridge designed by the North Dakota Highway Department and constructed in 1930. The bridge is associated with the Great Depression a... More
Lost Bridge, Spanning Little Missouri River, twenty-three miles north ...
Significance: The Lost Bridge is a three-span, riveted Parker through truss, bridge designed by the North Dakota Highway Department and constructed in 1930. The bridge is associated with the Great Depression a... More
Lost Bridge, Spanning Little Missouri River, twenty-three miles north ...
Significance: The Lost Bridge is a three-span, riveted Parker through truss, bridge designed by the North Dakota Highway Department and constructed in 1930. The bridge is associated with the Great Depression a... More
Lost Bridge, Spanning Little Missouri River, twenty-three miles north ...
Significance: The Lost Bridge is a three-span, riveted Parker through truss, bridge designed by the North Dakota Highway Department and constructed in 1930. The bridge is associated with the Great Depression a... More
Lost Bridge, Spanning Little Missouri River, twenty-three miles north ...
Significance: The Lost Bridge is a three-span, riveted Parker through truss, bridge designed by the North Dakota Highway Department and constructed in 1930. The bridge is associated with the Great Depression a... More
Riddle Bridge, Spanning Gasconada River, Dixon, Pulaski County, MO
Significance: Riddle Bridge is a Pennsylvania (Petit) span with timber stringer approach spans on each end. The metal truss is unique within Missouri because each alternate laced vertical member (numbers 3, 5,... More
Voges Bridge, Spanning Yellowstone River at Grey Bear Road, Big Timber...
Significance: The bridge over the Yellowstone River was one of the last pin-connected Pratt through truss structures constructed across a major watercourse in Montana. The bridge exhibits all the features tradi... More
Massengill Bridge, Coal Creek Road, spanning Clinch River, Norris, And...
Significance: According to the bridge plaque, the bridge was erected in 1916 by the Virginia Bridge and Iron Company of Roanoke, Virginia. It was one of four bridges constructed through a bond issue by Anderson... More
Massengill Bridge, Coal Creek Road, spanning Clinch River, Norris, And...
Significance: According to the bridge plaque, the bridge was erected in 1916 by the Virginia Bridge and Iron Company of Roanoke, Virginia. It was one of four bridges constructed through a bond issue by Anderson... More
Massengill Bridge, Coal Creek Road, spanning Clinch River, Norris, And...
Significance: According to the bridge plaque, the bridge was erected in 1916 by the Virginia Bridge and Iron Company of Roanoke, Virginia. It was one of four bridges constructed through a bond issue by Anderson... More
Calipso Bridge, Spanning Yellowstone River, Terry, Prairie County, MT
Survey number: HAER MT-26 Building/structure dates: ca. 1907 Initial Construction
Albany Bridge, Spanning Willamette River at U.S. Highway 20, Albany, L...
Significance: The Albany Bridge made possible the completion of the Albany-Corvallis Highway. It is one of only a few multiple-span steel truss bridges in Oregon. It is also one of the few major steel truss b... More
Paradise Road Bridge, Spanning Little Platte River, Paradise, Clay Cou...
Significance: This was a representative example of a late nineteenth century pin-connected Pratt through-truss bridge, and retained almost all of its historic integrity until the time it was destroyed. It was ... 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
Broad River Bridge, Spanning Broad River at U.S. Highway 29, Gaffney, ...
Significance: The completion of this 1,035' span was the last section of a larger project to improve U.S. Highway 29 across South Carolina. The structure is unusual because of its skewed through truss spans. ... More
Siuslaw River Bridge, Spanning Siuslaw River, Richardson Road, County ...
Significance: The Siuslaw River Bridge is the oldest extant through truss with riveted connections and one of two steel through truss bridges using the double intersection Warren truss in Oregon. Survey number... More
Siuslaw River Bridge, Spanning Siuslaw River, Richardson Road, County ...
Significance: The Siuslaw River Bridge is the oldest extant through truss with riveted connections and one of two steel through truss bridges using the double intersection Warren truss in Oregon. Survey number... More
Orange Street Bridge, Spanning Clark Fork River at Orange Street, Miss...
Significance: The bridge is one of only 14 steel deck truss bridges designed and constructed by the Montana Department of Transportation between 1920-1952. It comprised a standard design developed by the depart... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Coos Bay Bridge, Spanning Coos Bay on Oregon Coast Highway, North Bend...
Significance: The Coos Bay Bridge is historically significant as one of the five Depression-era PWA bridges that completed the Oregon Coast Highway. The completion of these bridges marks the dividing line betw... More
Coos Bay Bridge, Spanning Coos Bay on Oregon Coast Highway, North Bend...
Significance: The Coos Bay Bridge is historically significant as one of the five Depression-era PWA bridges that completed the Oregon Coast Highway. The completion of these bridges marks the dividing line betw... More
Pennsylvania & New Jersey Railroad, Delaware River Bridge, Spanning De...
Significance: Because of its location on the lower Delaware River, the bridge has a collection of extremely long and heavy spans. These include the world's heaviest center-bearing swing span, completed in 1896,... More
Pennsylvania & New Jersey Railroad, Delaware River Bridge, Spanning De...
Significance: Because of its location on the lower Delaware River, the bridge has a collection of extremely long and heavy spans. These include the world's heaviest center-bearing swing span, completed in 1896,... More
Pennsylvania & New Jersey Railroad, Delaware River Bridge, Spanning De...
Significance: Because of its location on the lower Delaware River, the bridge has a collection of extremely long and heavy spans. These include the world's heaviest center-bearing swing span, completed in 1896,... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Van Buren Bridge, Spanning Current River at US Route 60, Van Buren, Ca...
Significance: The Van Buren Bridge is a multiple-span structure consisting of a six-panel Pratt through truss, a ten-panel Parker through truss, and ten Warren pony truss approach spans. It is one of Missouri'... More
Van Buren Bridge, Spanning Current River at US Route 60, Van Buren, Ca...
Significance: The Van Buren Bridge is a multiple-span structure consisting of a six-panel Pratt through truss, a ten-panel Parker through truss, and ten Warren pony truss approach spans. It is one of Missouri'... More
Van Buren Bridge, Spanning Current River at US Route 60, Van Buren, Ca...
Significance: The Van Buren Bridge is a multiple-span structure consisting of a six-panel Pratt through truss, a ten-panel Parker through truss, and ten Warren pony truss approach spans. It is one of Missouri'... More
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
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
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
Bridgeport Swing Span Bridge, Spanning Tennessee River, Bridgeport, Ja...
Significance: The Bridgeport Swing Span Railroad Bridge embodies the distinctive characteristics of a type, period and method of construction. Its method of construction (pin-connected) is rare for a swing bri... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...
Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More
Leavenworth Bridge, Spanning Missouri River, Leavenworth, Leavenworth ...
See also HAER NE-2 for historical report and additional documentation. Significance: The bridge that George Morison designed for Leavenworth represented a synthesis of his previous thirteen bridges over the Mis... More
Leavenworth Bridge, Spanning Missouri River, Leavenworth, Leavenworth ...
See also HAER NE-2 for historical report and additional documentation. Significance: The bridge that George Morison designed for Leavenworth represented a synthesis of his previous thirteen bridges over the Mis... More
Leavenworth Bridge, Spanning Missouri River, Leavenworth, Leavenworth ...
See also HAER NE-2 for historical report and additional documentation. Significance: The bridge that George Morison designed for Leavenworth represented a synthesis of his previous thirteen bridges over the Mis... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coverts Crossing Bridge, Spanning Mahoning River along Township Route ...
Significance: The Coverts Crossing Bridge consists of two bridge segments, as it combines a reused bridge with a new one. It is a significant example of a metal truss bridge because it exhibits transitional te... More
Coverts Crossing Bridge, Spanning Mahoning River along Township Route ...
Significance: The Coverts Crossing Bridge consists of two bridge segments, as it combines a reused bridge with a new one. It is a significant example of a metal truss bridge because it exhibits transitional te... More
North Side Point Bridge, Spanning Allegheny River at Point of Pittsbur...
See also HAER PA-3 for additional documentation. Includes written data. Significance: The Manchester Bridge replaced the old wooden Union Bridge, the first bridge erected at the Point and demolished in 1907. B... More
North Side Point Bridge, Spanning Allegheny River at Point of Pittsbur...
See also HAER PA-3 for additional documentation. Includes written data. Significance: The Manchester Bridge replaced the old wooden Union Bridge, the first bridge erected at the Point and demolished in 1907. B... More
North Side Point Bridge, Spanning Allegheny River at Point of Pittsbur...
See also HAER PA-3 for additional documentation. Includes written data. Significance: The Manchester Bridge replaced the old wooden Union Bridge, the first bridge erected at the Point and demolished in 1907. B... More
Lenox Bridge, Spanning Obion River, Rural Road S8025, Lenox, Dyer Coun...
Significance: Believed to be the sole surviving hand-operated, swing span, pony Pratt through truss bridge within Tennessee. The bridge has retained its integrity of engineering design representative of transpo... More
Twenty-first Street Bridge, Spanning Railroad tracks at Twenty-first S...
Significance: The Twenty-First Street Bridge is a 1,272-foot-long through Parker truss and through Pony truss featuring pineapple finials atop its portals. It is a little-altered surviving example of a late 19... More
Eighteenth Street Bridge, Saint Louis, Independent City, MO
Significance: The Eighteenth Street Bridge is a 1,054-foot-long through-truss and through-plate girder structure with distinctive ornamentation over each truss portal in the form of finials and cresting, and pe... More
Bellefontaine Bridge, Saint Louis, Independent City, MO
See also HAER NE-2 for additional documentation. Survey number: HAER MO-26
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More