Bayou Teche at Charenton Bridge, Carries Louisiana Highway 324 (LA 324...
Significance: This Warren pony truss swing bridge has significance as an example of a movable swing bridge. Its significance is demonstrated by the presence of distinctive engineering and design features of a p... More
Bacon Island Road Bridge, Spanning Middle River at Bacon Island Road, ...
Significance: The Bacon Island Road Bridge is the oldest highway swing span bridge in California. It is important in local history for its relation to agricultural and economic development in the Sacramento-Sa... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Middle Bridge, Spanning Osage River, Warsaw, Benton County, MO
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Coquille River Bridge, Spanning Coquille River at State Route 244, Coq...
Significance: The Coquille River Bridge is on the original route of the Oregon Coast Highway. It is one of the oldest and few remaining swing span bridges in Oregon. It was designed by State Bridge Engineer C... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 21...
Significance: The Southern Pacific Railroad Shasta Route, built as the California and Oregon Railroad and the Central Pacific Railroad between Roseville, California and Portland, Oregon was the first thrust nor... More
Judsonia Bridge, Spanning LIttle White River at County Road 66, Judson...
Significance: The Judsonia bridge, completed in 1924, is significant as the only known swing bridge in Arkansas designed as a cantilever. Besides adding an aesthetic touch, the cantilever-like peak on the top ... More
Judsonia Bridge, Spanning LIttle White River at County Road 66, Judson...
Significance: The Judsonia bridge, completed in 1924, is significant as the only known swing bridge in Arkansas designed as a cantilever. Besides adding an aesthetic touch, the cantilever-like peak on the top ... More
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
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
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
Colusa Bridge, Spanning Sacramento River, Colusa, Colusa County, CA
Significance: The turning mechanism, although presently electrically operated, was originally hand-operated, is representative of several swing span bridges throughout California. Survey number: HAER CA-7 Bui... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-2, Spanning North ...
Significance: The Chicago, Milwaukee & St. Paul Railway's Bridge No. Z-2 is not only one of a few remaining swing bridges in Chicago, but is also of a rare asymmetrical or "bob-tail" type. The pivot pier is on... More
Tombigbee River Bridge, Spanning Tombigbee River at State Highway 182,...
Significance: The bridge was listed on the National Register of Historic Places in 1988. The bridge over the Tombigbee River at Columbus, Lowndes County, Mississippi was built in 1927 by the Mississippi State H... More
Tombigbee River Bridge, Spanning Tombigbee River at State Highway 182,...
Significance: The bridge was listed on the National Register of Historic Places in 1988. The bridge over the Tombigbee River at Columbus, Lowndes County, Mississippi was built in 1927 by the Mississippi State H... More
Tombigbee River Bridge, Spanning Tombigbee River at State Highway 182,...
Significance: The bridge was listed on the National Register of Historic Places in 1988. The bridge over the Tombigbee River at Columbus, Lowndes County, Mississippi was built in 1927 by the Mississippi State H... More
Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Sp...
Significance: This bridge crossing the Sanitary and Ship Canal was originally built for the Chicago, Madison & Northern Railroad Bridge. When it was completed in 1900 it contained the longest swing span of the... More
Black River Bridge, Spanning Black River at U.S. Highway 67, Pocahonta...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Niantic River Swing Bridge, Spanning Niantic River between East Lyme &...
Significance: The Niantic River Bridge has two spans: a fixed Pratt through truss and the swing span which resembles a Warren through truss with verticals. All members and all connections are riveted. Survey ... More
Chester & Delaware River Railroad, Chester Creek Bridge, Spanning Ches...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of moveable railroad structures in this state. This bridge is remarkably low, about a foot above water at high t... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-6, Spanning North ...
Significance: The Milwaukee Road's Bridge No. Z-6 may be the only one of its kind ever built, defying the conventional categories of center-bearing and rim-bearing swing bridges. This ingenious design answers ... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-6, Spanning North ...
Significance: The Milwaukee Road's Bridge No. Z-6 may be the only one of its kind ever built, defying the conventional categories of center-bearing and rim-bearing swing bridges. This ingenious design answers ... 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
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
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
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
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
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
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
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
India Point Railroad Bridge, Spanning Seekonk River between Providence...
Significance: The India Point Railroad Bridge is one of 25 surviving swing bridges in southern New England, and one of three in Rhode Island. It is an example of early-twentieth-century bridge truss design in ... More
India Point Railroad Bridge, Spanning Seekonk River between Providence...
Significance: The India Point Railroad Bridge is one of 25 surviving swing bridges in southern New England, and one of three in Rhode Island. It is an example of early-twentieth-century bridge truss design in ... More
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph of a river with a town on a background, reflection in the water, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph of ship dock, embarkment, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...
Survey number: HAER CT-11 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston...
Significance: The Harvard Bridge is located in the Charles River Basin Historic District. Survey number: HAER MA-53 Building/structure dates: 1887- 1891 Initial Construction Building/structure dates: 1898... More
Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston...
Significance: The Harvard Bridge is located in the Charles River Basin Historic District. Survey number: HAER MA-53 Building/structure dates: 1887- 1891 Initial Construction Building/structure dates: 1898... More
Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston...
Significance: The Harvard Bridge is located in the Charles River Basin Historic District. Survey number: HAER MA-53 Building/structure dates: 1887- 1891 Initial Construction Building/structure dates: 1898... More
Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston...
Significance: The Harvard Bridge is located in the Charles River Basin Historic District. Survey number: HAER MA-53 Building/structure dates: 1887- 1891 Initial Construction Building/structure dates: 1898... More
Sharptown Bridge, Spanning Nanticoke River, State Route 313, Sharptown...
Significance: The Sharptown Bridge was the first bridge built entirely under the control of the State Roads Commission. It is the first and only bridge at this location. Survey number: HAER MD-52 Building/st... More
Erie Railway, New York Division, Bridge 8.04 (c.1875), Spanning Passai...
Survey number: HAER NJ-25-A Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Stono River Bridge, Spanning Stono River between James & Johns Islands...
Significance: The Stono River Bridge is identified as "Charleston 3) in the South Carolina Department of Transportation's Metal Truss Highway Bridge Inventory. The bridge is noteworthy in that it represents th... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Weems Creek Bridge, Spanning Weems Creek at MD Route 436, Annapolis, A...
Significance: This bridge is one of only three remaining swing span bridges in Maryland and is the oldest of the three. It is important in the history of transportation in Maryland as a relatively rare example... More
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Re...
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividi... More
Middle Bridge, Spanning Osage River, Warsaw, Benton County, MO
Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description
Middle Bridge, Spanning Osage River, Warsaw, Benton County, MO
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Coquille River Bridge, Spanning Coquille River at State Route 244, Coq...
Significance: The Coquille River Bridge is on the original route of the Oregon Coast Highway. It is one of the oldest and few remaining swing span bridges in Oregon. It was designed by State Bridge Engineer C... More
Victory Bridge, Spanning Raritan River at New Jersey Route 35, Perth A...
Significance: This 360 foot center-bearing swing span bridge with steel deck girder and concrete bent approach spans is significant as the largest and most recent example of a highway bridge of its type in the ... More
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 ...
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 ...
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
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Jackson Street Bridge, Spanning Passaic River, Newark, Essex County, N...
Significance: The Jackson Street Bridge was constructed in the area of the Morris Canal, a current National Register property, on the former site if Balback Smelting and Refining Company, by Fagan Iron Works wh... More
Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 21...
Significance: The Southern Pacific Railroad Shasta Route, built as the California and Oregon Railroad and the Central Pacific Railroad between Roseville, California and Portland, Oregon was the first thrust nor... More
Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 21...
Significance: The Southern Pacific Railroad Shasta Route, built as the California and Oregon Railroad and the Central Pacific Railroad between Roseville, California and Portland, Oregon was the first thrust nor... More
Judsonia Bridge, Spanning LIttle White River at County Road 66, Judson...
Significance: The Judsonia bridge, completed in 1924, is significant as the only known swing bridge in Arkansas designed as a cantilever. Besides adding an aesthetic touch, the cantilever-like peak on the top ... More
Judsonia Bridge, Spanning LIttle White River at County Road 66, Judson...
Significance: The Judsonia bridge, completed in 1924, is significant as the only known swing bridge in Arkansas designed as a cantilever. Besides adding an aesthetic touch, the cantilever-like peak on the top ... More
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
Colusa Bridge, Spanning Sacramento River, Colusa, Colusa County, CA
Significance: The turning mechanism, although presently electrically operated, was originally hand-operated, is representative of several swing span bridges throughout California. Survey number: HAER CA-7 Bui... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-2, Spanning North ...
Significance: The Chicago, Milwaukee & St. Paul Railway's Bridge No. Z-2 is not only one of a few remaining swing bridges in Chicago, but is also of a rare asymmetrical or "bob-tail" type. The pivot pier is on... More
Tombigbee River Bridge, Spanning Tombigbee River at State Highway 182,...
Significance: The bridge was listed on the National Register of Historic Places in 1988. The bridge over the Tombigbee River at Columbus, Lowndes County, Mississippi was built in 1927 by the Mississippi State H... More
Merrimac Bridge, Spanning Merrimac River on Bridge Street, Haverhill, ...
Significance: The Merrimac Bridge is located on a site which has been utilized as a major river crossing since the seventeenth century. It contains the oldest moveable span identified in the Massachusetts Depa... More
Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Sp...
Significance: This bridge crossing the Sanitary and Ship Canal was originally built for the Chicago, Madison & Northern Railroad Bridge. When it was completed in 1900 it contained the longest swing span of the... More
Niantic River Swing Bridge, Spanning Niantic River between East Lyme &...
Significance: The Niantic River Bridge has two spans: a fixed Pratt through truss and the swing span which resembles a Warren through truss with verticals. All members and all connections are riveted. Survey ... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-6, Spanning North ...
Significance: The Milwaukee Road's Bridge No. Z-6 may be the only one of its kind ever built, defying the conventional categories of center-bearing and rim-bearing swing bridges. This ingenious design answers ... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-6, Spanning North ...
Significance: The Milwaukee Road's Bridge No. Z-6 may be the only one of its kind ever built, defying the conventional categories of center-bearing and rim-bearing swing bridges. This ingenious design answers ... More
Chicago, Milwaukee & St. Paul Railway, Bridge No. Z-6, Spanning North ...
Significance: The Milwaukee Road's Bridge No. Z-6 may be the only one of its kind ever built, defying the conventional categories of center-bearing and rim-bearing swing bridges. This ingenious design answers ... 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
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