Significance: The Sabin Lock's Northeast Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter is also significant as a unique More
Significance: Accommodating the passage of iron ore-laden ships between Lakes Superior and Huron, the Soo Locks Complex was a vital component in the transportation system that provided many American steel mills More
Significance: Building No. 5 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 2 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 4 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 3 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: The Davis Lock's Northwest Intermediate Shelter is significant as an element that contributes to the overall integrity of the Soo Lock Complex in general. The shelter is also significant as a uni More
Significance: The Davis Lock's Northeast Intermediate Shelter is significant as an element that contributes to the overall integrity of the Soo Lock Complex in general. The shelter also serves as a unique comp More
Significance: The Davis Lock's Southeast Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock Complex in general. The shelter also serves as a unique compone More
Significance: The Sabin Lock's Northeast Intermediate Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter is also significant as a uni More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Chicago and Northwestern (CNW) Railroad Bridge is a 337', multi-span, riveted, steel, deck plate girder structure that was constructed in 1902. Built by the American Bridge Company, the trestl More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: The Roosevelt Drive Bridge is a two-arch, limestone structure that was completed in 1899. It is significant as the only example of a late nineteenth century, stone-arch bridge in the historic por More
Significance: Building No. 1 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 1 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 1 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: Building No. 1 of the Military Defense subcomplex is significant as an element that contributes to the overall integrity of the Soo Lock complex. The facility also demonstrates the strategic impo More
Significance: The Sabin Lock's Northwest Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter also serves as a unique compone More
Significance: The Sabin Lock's Northwest Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter also serves as a unique compone More
Significance: The Sabin Lock's Northwest Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter also serves as a unique compone More
Significance: The Sabin Lock's Northwest Operating Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter also serves as a unique compone More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Bowen Mill Bridge is a Pratt through truss. It was erected in 1907, and re-erected at its present location in 1966. Of the thirty-two Pratt through truss bridges identified by the Wisconsin More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Poplar Grove Road Bridge utilizes a single span, two lane, Warren Double-Intersection pony truss. Erected in 1883 by the Alden and Lassig Bridge and Iron Works of Chicago for the Chicago & Nor More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The Manchester Street Bridge is a Camelback (Pratt) through truss. It was erected in 1884 by the Milwaukee Bridge and Iron Works, a very prolific late nineteenth century firm that built bridges t More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe More
Significance: The Sabin Lock's Southwest Intermediate Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter is also significant as a uni More
Significance: The Sabin Lock's Southwest Intermediate Shelter is significant as an element that contributes to the overall integrity of the Soo Lock complex in general. The shelter is also significant as a uni More