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Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

The Boeing Company, 7755 East Marginal Way South, Seattle, King County, WA

The Boeing Company, 7755 East Marginal Way South, Seattle, King County...

Significance: Boeing Plant 2 assembly buildings 2-40 and 2-41, and the two associated warehouses, 2-31 and 2-44, are significant for their direct association with the World War II defense industry, specifically... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Significance: This building is among the oldest extant in Headquarters District. Unlike most buildings in the park, it retained its original intended use (and historic name) for over fifty years. The entire b... More

West Branch Bridge, South Carolina Road S-569 spanning West Branch of Pacolet River, Pacolet, Spartanburg County, SC

West Branch Bridge, South Carolina Road S-569 spanning West Branch of ...

Significance: The State Road 569 bridge, built by the Pacolet Manufacturing Company, was an integral part of a designed landscape known as "Victor Park" created by Earle Sumner Draper. Draper is considered to ... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

West Branch Bridge, South Carolina Road S-569 spanning West Branch of Pacolet River, Pacolet, Spartanburg County, SC

West Branch Bridge, South Carolina Road S-569 spanning West Branch of ...

Significance: The State Road 569 bridge, built by the Pacolet Manufacturing Company, was an integral part of a designed landscape known as "Victor Park" created by Earle Sumner Draper. Draper is considered to ... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Between Russell, South and Paul Hamilton Avenues, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Betw...

Significance: They are associated with the build up of the Pearl Harbor base in the early 1940s. They were a group of additional warehouses built to meet the expanding storage requirements for supplying the adv... More

West Branch Bridge, South Carolina Road S-569 spanning West Branch of Pacolet River, Pacolet, Spartanburg County, SC

West Branch Bridge, South Carolina Road S-569 spanning West Branch of ...

Significance: The State Road 569 bridge, built by the Pacolet Manufacturing Company, was an integral part of a designed landscape known as "Victor Park" created by Earle Sumner Draper. Draper is considered to ... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Between Russell, South and Paul Hamilton Avenues, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Betw...

Significance: They are associated with the build up of the Pearl Harbor base in the early 1940s. They were a group of additional warehouses built to meet the expanding storage requirements for supplying the adv... More

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Significance: This building is among the oldest extant in Headquarters District. Unlike most buildings in the park, it retained its original intended use (and historic name) for over fifty years. The entire b... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Between Russell, South and Paul Hamilton Avenues, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Betw...

Significance: They are associated with the build up of the Pearl Harbor base in the early 1940s. They were a group of additional warehouses built to meet the expanding storage requirements for supplying the adv... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Mount McKinley Headquarters, Warehouse, Cantwell, Denali Borough, AK

Significance: This building is among the oldest extant in Headquarters District. Unlike most buildings in the park, it retained its original intended use (and historic name) for over fifty years. The entire b... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph of rural landscape, California, no copyright restrictions image - Picryl description

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

West Branch Bridge, South Carolina Road S-569 spanning West Branch of Pacolet River, Pacolet, Spartanburg County, SC

West Branch Bridge, South Carolina Road S-569 spanning West Branch of ...

Significance: The State Road 569 bridge, built by the Pacolet Manufacturing Company, was an integral part of a designed landscape known as "Victor Park" created by Earle Sumner Draper. Draper is considered to ... More

West Branch Bridge, South Carolina Road S-569 spanning West Branch of Pacolet River, Pacolet, Spartanburg County, SC

West Branch Bridge, South Carolina Road S-569 spanning West Branch of ...

Significance: The State Road 569 bridge, built by the Pacolet Manufacturing Company, was an integral part of a designed landscape known as "Victor Park" created by Earle Sumner Draper. Draper is considered to ... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of an arch bridge, stone structure, architecture, free to use, no copyright restrictions.

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain reproduction of artwork related to ancient civilizations, free to use, no copyright restrictions image - Picryl description

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Between Russell, South and Paul Hamilton Avenues, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Betw...

Significance: They are associated with the build up of the Pearl Harbor base in the early 1940s. They were a group of additional warehouses built to meet the expanding storage requirements for supplying the adv... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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, Burleigh County, ND

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

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pasadena, Los Angeles County, CA

Prospect Boulevard Bridge, Prospect Boulevard spanning Seco Street, Pa...

Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

Orphan Lode Mine, North of West Rim Road between Powell Point and Maricopa Point, South Rim, Grand Canyon Village, Coconino County, AZ

Orphan Lode Mine, North of West Rim Road between Powell Point and Mari...

Significance: It is significant because it is associated with events that have made a significant contribution to the broad patterns of our history. With the discovery of uranium deposits, the mine was further ... More

The Boeing Company, 7755 East Marginal Way South, Seattle, King County, WA

The Boeing Company, 7755 East Marginal Way South, Seattle, King County...

Significance: Boeing Plant 2 assembly buildings 2-40 and 2-41, and the two associated warehouses, 2-31 and 2-44, are significant for their direct association with the World War II defense industry, specifically... More

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Between Russell, South and Paul Hamilton Avenues, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Temporary Storehouses - 1941 Type, Betw...

Significance: They are associated with the build up of the Pearl Harbor base in the early 1940s. They were a group of additional warehouses built to meet the expanding storage requirements for supplying the adv... More

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, Kent County, DE

Mill Creek Bridge, Spanning Mill Creek at State Route No. 6, Smyrna, K...

Significance: The Mill Creek Bridge, one of three of its kind currently extant in Delaware, is an early representative example of a composite slab deck bridge, combining concrete and laminated timber. Unproces... More

Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND

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, Burleigh County, ND

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

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