Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Delaware, Lackawanna & Western Railroad, Lackawanna Terminal, Main Str...
Significance: The terminal's double deck train shed, attributed to Lincoln Bush, is considered to be significant as an early example of the innovative use of reinforced concrete. Unprocessed Field note materia... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Odessa Bridge, Spanning Appoquinimink River at Main Street (State Road...
Significance: The Odessa Bridge is a steel plate girder, bobtail swing bridge that rotates on a center bearing, appropriate to a relatively short light span. The bobtailed swing form is relatively unusual, and... More
Carter's Bridge, Still Road (Road 211), spanning Choptank River, Sandt...
Significance: Carter's Bridge (State Bridge No. 211A) is Delaware's only surviving highway span representative of the steel I-beam and lally column bridge form. The four-span length of the structure is unusual... More
Delaware & Raritan Canal, Outlet Locks, Between State Route 18 & Rarit...
Survey number: HAER NJ-61 Public domain photograph of river bank, water, free to use, no copyright restrictions image - Picryl description
Delaware & Raritan Canal, Outlet Locks, Between State Route 18 & Rarit...
Survey number: HAER NJ-61 Public domain photograph of river bank, water, free to use, no copyright restrictions image - Picryl description
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Bridge 60, Sp...
Significance: Bridge 60 stands at the west end of the Scranton yards. It controlled traffic between the yards and the D,L & W's mainline and Bloomsburg branch. Its construction is typical of D,L & W plate gir... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Bridge 60, Sp...
Significance: Bridge 60 stands at the west end of the Scranton yards. It controlled traffic between the yards and the D,L & W's mainline and Bloomsburg branch. Its construction is typical of D,L & W plate gir... More
Mispillion Lighthouse, Beacon Tower, South bank of Mispillion River at...
Significance: The beacon tower is associated with Mispillion Lighthouse, one of three surviving lighthouses in Delaware, and is an early example of the importance of steel-frame tower construction in providing ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Scrap Platfor...
Significance: The D,L & W's Scranton scrap platform held metal, rubber and other scrap collected from the Scranton division and yards. Scrap was sorted at the platform, and then recycled or sold. The faciliti... More
Mispillion Lighthouse, South bank of Mispillion River at its confluenc...
Significance: Mispillion Lighthouse is the sole surviving wood-frame lighthouse in Delaware and is one of only three Delaware Bay lighthouses still standing on Delaware soil. Unprocessed Field note material ex... More
Northampton Street Bridge, Spanning Delaware River at Northampton Stre...
Significance: The bridge is one of a few extant eye-bar cantilever bridges in the U.S. Its long central span, supported between two cantilever arms, is carefully disguised by superfluous members so as to appear... More
Erie Railway, Delaware Division, Bridge 189.46, Spanning Starucca Cree...
Significance: The Starrucca Viaduct was built by the Erie Railway in 1848, under the supervision of the engineers J.P. Kirkwood and J.W. Adams, and has been recognized, from the time of its construction, as one... More
Erie Railway, Delaware Division, Bridge 189.46, Spanning Starucca Cree...
Significance: The Starrucca Viaduct was built by the Erie Railway in 1848, under the supervision of the engineers J.P. Kirkwood and J.W. Adams, and has been recognized, from the time of its construction, as one... 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
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Thompson's Bridge, Spanning Brandywine River on Delaware State Route 9...
Significance: Thompson's Bridge is a multiple span, highly ornamental example of a concrete encased steel girder bridge; this type commonly was constructed by the State Highway Department during the period 1925... More
Thompson's Bridge, Spanning Brandywine River on Delaware State Route 9...
Significance: Thompson's Bridge is a multiple span, highly ornamental example of a concrete encased steel girder bridge; this type commonly was constructed by the State Highway Department during the period 1925... More
Philadelphia Electric Company, Richmond Power Station, Southeast end o...
Survey number: HAER PA-574 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description
Philadelphia Electric Company, Richmond Power Station, Southeast end o...
Survey number: HAER PA-574 Public domain photograph of electric equipment, power generation, free to use, no copyright restrictions image - Picryl description
Erie Railway, Delaware Division, Bridge 110.54, Spanning Lackawaxen Ri...
Significance: The former Erie Railroad bridge over the Lackawaxen River is significant as a late nineteenth-century truss structure remaining in main-line service, and as the work of a major bridge-building com... More
Delaware County Bridge No. 131, County Route 750 Spanning White River,...
Significance: The White River Bridge on Delaware County Road 750W was fabricated and constructed by the Indiana Bridge Co. of Muncie, Indiana in 1897. Its 199'-10" span is the longest in Delaware County. The ... More
Half-Mound Bridge, Spanning Delaware River on Federal Aid Secondary Ro...
Significance: The Half Mound Bridge is a rare surviving example of a Baltimore truss. Survey number: HAER KS-1 Building/structure dates: after. 1875- before. 1900 Initial Construction Building/structure date... 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
Odessa Bridge, Spanning Appoquinimink River at Main Street (State Road...
Significance: The Odessa Bridge is a steel plate girder, bobtail swing bridge that rotates on a center bearing, appropriate to a relatively short light span. The bobtailed swing form is relatively unusual, and... More
Carter's Bridge, Still Road (Road 211), spanning Choptank River, Sandt...
Significance: Carter's Bridge (State Bridge No. 211A) is Delaware's only surviving highway span representative of the steel I-beam and lally column bridge form. The four-span length of the structure is unusual... More
Delaware & Raritan Canal, Outlet Locks, Between State Route 18 & Rarit...
Survey number: HAER NJ-61 Public domain photograph - New Jersey, United States, free to use, no copyright restrictions image - Picryl description
Delaware & Raritan Canal, Outlet Locks, Between State Route 18 & Rarit...
Survey number: HAER NJ-61 Public domain photograph of a canal, water landscape, free to use, no copyright restrictions image - Picryl description
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
Augustine Bridge, Brandywine River,Augustine Cutoff, Wilmington, New C...
Significance: Wrought iron, pin-connected, Pratt-type truss superstructure mounted on granite masonry piers; originally served as bridge for the B&O Railroad. Survey number: HAER DE-20 Building/structure date... More
New York, Ontario & Western Railroad, Delaware River Bridge, Hancock, ...
Survey number: HAER NY-66 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Morris Canal, Delaware River Portal, Phillipsburg, Warren County, NJ
Significance: The Delaware River Portal is the western terminus of the Morris Canal. The canal is one of the few amphibious waterways in America. The river portal was the starting point for coal laden barges ... More
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
Mispillion Lighthouse, South bank of Mispillion River at its confluenc...
Significance: Mispillion Lighthouse is the sole surviving wood-frame lighthouse in Delaware and is one of only three Delaware Bay lighthouses still standing on Delaware soil. Unprocessed Field note material ex... More
Mispillion Lighthouse, South bank of Mispillion River at its confluenc...
Significance: Mispillion Lighthouse is the sole surviving wood-frame lighthouse in Delaware and is one of only three Delaware Bay lighthouses still standing on Delaware soil. Unprocessed Field note material ex... 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
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware, Lackawanna & Western Railroad, Scranton Yards, Lackawanna Av...
Significance: The Scranton yards of the D,L & W Railroad are representative of twentieth-century steam-era facilities. Many structures remain from the administration of D,L & W President William H. Truesdale, ... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Delaware County Electric Company, Chester Station, Delaware River at S...
Significance: It is a monument to the production and marketing of electricity in early 20th-century America. Wartime demand for light and power led Philadelphia Electric to commission the plant for the company'... More
Thompson's Bridge, Spanning Brandywine River on Delaware State Route 9...
Significance: Thompson's Bridge is a multiple span, highly ornamental example of a concrete encased steel girder bridge; this type commonly was constructed by the State Highway Department during the period 1925... More
Philadelphia Electric Company, Richmond Power Station, Southeast end o...
Survey number: HAER PA-574 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description
Philadelphia Electric Company, Richmond Power Station, Southeast end o...
Survey number: HAER PA-574 Public domain photograph related to electrical equipment, industrial development, free to use, no copyright restrictions image - Picryl description
Erie Railway, Delaware Division, Bridge 110.54, Spanning Lackawaxen Ri...
Significance: The former Erie Railroad bridge over the Lackawaxen River is significant as a late nineteenth-century truss structure remaining in main-line service, and as the work of a major bridge-building com... More
Erie Railway, Delaware Division, Bridge 110.54, Spanning Lackawaxen Ri...
Significance: The former Erie Railroad bridge over the Lackawaxen River is significant as a late nineteenth-century truss structure remaining in main-line service, and as the work of a major bridge-building com... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Delaware River Bridge, Spanning Delaware River on Delaware Road, Riege...
Survey number: HAER PA-31 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Delaware State Bridge No. 21A, Operator's House, Spanning Mispillion R...
Significance: Delaware Bridge 21A is a typical example of a Scherzer-type, rolling-lift bascule bridge, and the Operator's House is a standard design used on many movable bridges designed by the firm of Keller ... More
Philadelphia & Reading Railroad, Delaware River Bridge, Spanning Delaw...
Significance: The bridge, an early, large-scale reinforced concrete structure, is a significant example of its type because of several unusual details. Its closed-spandrel arches are rife with expansion joints ... More
John Turn Farm, Lime Kiln, River Road (Middle Smithfield Township), Sh...
Significance: John Turn, farmer, carpenter and cabinet maker, began farming here about 1830, and built the house and barn. His grandson, Charles, ran the property as a model farm. The date of construction of th... More
Delaware, Lackawanna & Western Railroad, Lackawanna Terminal, Main Str...
Significance: The terminal's double deck train shed, attributed to Lincoln Bush, is considered to be significant as an early example of the innovative use of reinforced concrete. Unprocessed Field note materia... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Delaware, Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips ...
Significance: Throughout the early decades of the twentieth century, this terminal played a central role in commuter transportation in the metropolitan area. The ferry facilities are significant as an integral... More
Half-Mound Bridge, Spanning Delaware River on Federal Aid Secondary Ro...
Significance: The Half Mound Bridge is a rare surviving example of a Baltimore truss. Survey number: HAER KS-1 Building/structure dates: after. 1875- before. 1900 Initial Construction Building/structure date... 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
Odessa Bridge, Spanning Appoquinimink River at Main Street (State Road...
Significance: The Odessa Bridge is a steel plate girder, bobtail swing bridge that rotates on a center bearing, appropriate to a relatively short light span. The bobtailed swing form is relatively unusual, and... More
Carter's Bridge, Still Road (Road 211), spanning Choptank River, Sandt...
Significance: Carter's Bridge (State Bridge No. 211A) is Delaware's only surviving highway span representative of the steel I-beam and lally column bridge form. The four-span length of the structure is unusual... More
Carter's Bridge, Still Road (Road 211), spanning Choptank River, Sandt...
Significance: Carter's Bridge (State Bridge No. 211A) is Delaware's only surviving highway span representative of the steel I-beam and lally column bridge form. The four-span length of the structure is unusual... More
Delaware & Raritan Canal, Outlet Locks, Between State Route 18 & Rarit...
Survey number: HAER NJ-61 Public domain photograph - New Jersey, United States, free to use, no copyright restrictions image - Picryl description