"CROSSING AT GLEN CANYON" 1960 CONSTRUCTION OF GLEN CANYON BRIDGE ACROSS THE COLORADO RIVER XD23505

Join this channel to get access to perks:    / @periscopefilm   Help us preserve, scan and post more rare and endangered films! Join us on Patreon. Visit   / periscopefilm   Visit our website www.PeriscopeFilm.com Dating to 1960, "Crossing at Glen Canyon" describes the construction of the Glen Canyon Bridge in Arizona across the Colorado River. The film was created by the Judson Pacific Murphy Corporation division of Yuba Consolidated Industries, the fabricators and erectors of the bridge. The bridge was originally built by the United States Bureau of Reclamation to facilitate transportation of materials for the Glen Canyon Dam, which lies adjacent to the bridge just 865 feet (264 m) upstream. The bridge was the highest arch bridge in the world when completed in 1959. The film details the ambitious construction of the massive dam and the steel bridge beginning in February 1957. The bridge's completion in August 1958 was a major milestone, and by February 1959, the new highway was opened ahead of schedule and the project was deemed a success. 0:00: Introduces the ambitious plan to build a massive dam in northern Arizona at Glen Canyon. The Bureau of Reclamation decides to construct one of the world’s highest arch steel bridges across the canyon 1:01: The engineers design a bridge that will be supported from above during construction using high towers and cables. The creation of holdback towers to support the structure as it grows. 2:05: The project begins in February 1957, with the creation of a small city for workers. Blast charges are set for digging deep foundations for the bridge. 3:00: Excavations are blasted and reinforced with dowels to secure the foundation for the arch. Meanwhile, construction of a tower for a highline to ferry materials begins. 4:03: By July 1957, the first highline is ready, and the aerial tramway is tested. Workers can now travel quickly across the canyon. 5:30: The concrete foundations are poured into the skewbacks. The construction team uses the highline to transport heavy materials. 7:00: Taller towers for the main highline are built. 9:01: A year into the project, the skewback shoes, critical pieces of the arch, are precisely placed on the foundations. 10:22: The first steel arch components are lifted into place by the highline. Tieback cables are installed to help suspend the growing arch. 13:12: As the bridge grows, steel is continuously added, and the workers’ meticulous efforts ensure everything fits perfectly. Safety measures like nets are deployed. 16:16: Assembling the steel arch in midair. Steelworkers use extreme precision to fit the pieces into place. 20:34 - Glen Canyon crossing potentially being one of the last major projects where rivet teams will be employed. 21:05 - The riveting team, including the tinker, heater, catcher, bucker, and riveter, work together in a highly synchronized manner. 22:00 August 6th, 1958, two halves of the bridge arch being joined. The engineers have built an arch over 1,000 feet long. 22:18 - The arch is closed. The tieback cables are no longer needed, and the arch now rests securely on its foundations. 24:01 Completion is celebrated. The tieback cables are relaxed and removed. 25:02 - The road construction begins. 26:00 - As the bridge nears completion, workers prepare the area for the dam, blasting out space for it in the canyon. Painters begin applying the final aluminum coat to the steel structure. 26:51 - The construction is almost complete. 27:03 - The carpenters work on the sidewalk, one of the few places where nails were used in the bridge's construction. Concrete decking is poured quickly, with the main highline assisting in the task. 27:34 - February 20th, 1959: The new highway is opened, ahead of schedule, providing a new route for motorists and unlocking vast vistas in the American landscape. 28:01 - The project at Glen Canyon is declared a success. It was a dangerous job but was completed without loss of life or insurmountable problems. The engineers who designed it are acknowledged for their achievement. Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com