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
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
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
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
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
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
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
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
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: As one of Iowa's most handsomely proportioned highway trusses, the Jefferson Viaduct a continuous Warren deck truss is technologically noteworthy as an uncommon application of deck truss techn More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: The Range Line Road Bridge is a single span Warren truss consisting almost entirely of riveted angles. A distinctive feature is the continuous top chord that extends to the shoe, eliminating the More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More
Significance: This structure is significant as the first long-span steel bridge and first continuous truss bridge built in Florida. As the third bridge in the state to cross the Apalachicola River, a major wate More