John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
McGilvray Road Bridge No. 2, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional information. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Public domain scan of an architecture diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Fountain Island Bridge, Lakeside Park between Promen Drive & Fountain ...
Significance: The Fountain Island Bridge is one of seven remaining bowstring truss bridges in the State of Wisconsin. Survey number: HAER WI-23 Building/structure dates: ca. 1870 Initial Construction Buildin... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Tivoli Island Bridge, Spanning Rock River Channel from mainland to wes...
Significance: In 1866, Zenas King from Ohio received a patent for an innovative tubular iron-arch design. Increasing the sectional area of the top chord toward the ends of the arch, he claimed, strengthened th... More
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Public domain scan of an architecture diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Fountain Island Bridge, Lakeside Park between Promen Drive & Fountain ...
Significance: The Fountain Island Bridge is one of seven remaining bowstring truss bridges in the State of Wisconsin. Survey number: HAER WI-23 Building/structure dates: ca. 1870 Initial Construction Buildin... More
McGilvray Road Bridge No. 1, Van Loon Wildlife Area, La Crosse, La Cro...
Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections perforated the metal, needlessly weakening... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Fountain Island Bridge, Lakeside Park between Promen Drive & Fountain ...
Significance: The Fountain Island Bridge is one of seven remaining bowstring truss bridges in the State of Wisconsin. Survey number: HAER WI-23 Building/structure dates: ca. 1870 Initial Construction Buildin... More
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
McGilvray Road Bridge No. 1, Van Loon Wildlife Area, La Crosse, La Cro...
Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections perforated the metal, needlessly weakening... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
McGilvray Road Bridge No. 6, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
McGilvray Road Bridge No. 3, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connectio... More
McGilvray Road Bridge No. 3, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connectio... More
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
McGilvray Road Bridge No. 1, Van Loon Wildlife Area, La Crosse, La Cro...
Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections perforated the metal, needlessly weakening... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
McGilvray Road Bridge No. 3, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connectio... More
McGilvray Road Bridge No. 3, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connectio... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Tivoli Island Bridge, Spanning Rock River Channel from mainland to wes...
Significance: In 1866, Zenas King from Ohio received a patent for an innovative tubular iron-arch design. Increasing the sectional area of the top chord toward the ends of the arch, he claimed, strengthened th... More
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
McGilvray Road Bridge No. 2, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional information. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections... More
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph of a dock, free to use, no copyright restrictions image - Picryl description
Fountain Island Bridge, Lakeside Park between Promen Drive & Fountain ...
Significance: The Fountain Island Bridge is one of seven remaining bowstring truss bridges in the State of Wisconsin. Survey number: HAER WI-23 Building/structure dates: ca. 1870 Initial Construction Buildin... More
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
McGilvray Road Bridge No. 3, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connectio... More
McGilvray Road Bridge No. 2, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional information. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections... More
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
Parker Bridge, Spanning Verdigris River 1.5 miles Southeast of Coffeyv...
Significance: The combination bowstring/camelback bridge is a riveted steel high through truss and is one of only five camelbacks known to exist in the state. The bowstring pony truss is the only identified ex... More
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Public domain photograph of attic, house frame, free to use, no copyright restrictions image - Picryl description
McGilvray Road Bridge No. 4, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Public domain photograph - historical image of Ohio, United States, free to use, no copyright restrictions image - Picryl description
Vieley Bridge, Spanning North Fork Vermillion River at Township Road 2...
Significance: The Vieley Bridge is one of two iron and steel bowstring arch truss bridges of the Phoenix Ring upper chord design remaining in Livingston County. The bridge possesses significance as an example ... More
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
McGilvray Road Bridge No. 6, Van Loon Wildlife Area, La Crosse, La Cro...
See also HAER WI-22 for additional documentation. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted conn... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Germantown Covered Bridge, Center Street spanning Little Twin Creek, G...
Significance: The bridge is a composite wood and iron rigid suspension truss. It is an early work of David H. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, and one of the most important bridg... More
Meriden Rock Creek Bridge, Spanning Rock Creek, Meriden, Jefferson Cou...
Significance: Wrought iron bowstring arch. Survey number: HAER KS-2 Building/structure dates: ca. 1870- ca. 1879 Initial Construction
John Bright No. 2 Covered Bridge, Bish Road (Township Route 263) over ...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
McGilvray Road Bridge No. 2, Van Loon Wildlife Area, La Crosse, La Cro...
See HAER WI-22 for additional information. Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections... More
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Spile Bridge Road Bridge, Spanning Black Lake Outlie at Spile Bridge R...
Survey number: HAER NY-296 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Kern Truss Bridge, Township Road over LeSueur River, Skyline, Blue Ear...
Significance: This bridge is listed in the National Register of Historic Places under Criterion C in the area of Engineering as the only example of a bowstring arch through-truss bridge in the state of Minnesot... More
McGilvray Road Bridge No. 1, Van Loon Wildlife Area, La Crosse, La Cro...
Significance: In 1897, Charles M. Horton of Minnesota received a patent for an improvement on trusses and bridges. According to Horton, riveted and bolted connections perforated the metal, needlessly weakening... More