The Yale Lock Bridge, also known as the Yale Bridge, is a historic bridge located in Yale, Oklahoma, United States. The bridge was built in 1924 and spans the Cimarron River, providing a vital transportation link between the towns of Yale and Stillwater. The bridge is significant not only for its age and historical importance but also for its unique design, which features a camelback truss structure. This type of structure is characterized by its curved upper chord, which gives the bridge its distinctive humped appearance.
Design and Construction
The Yale Lock Bridge was designed by the Kansas City Bridge Company and constructed by the Frisco Railway Company. The bridge’s camelback truss design was chosen for its ability to withstand the heavy loads and stresses associated with railroad traffic. The bridge features a total of five spans, each measuring 100 feet in length, and is supported by four piers and two abutments. The bridge’s deck is composed of wooden timbers, and the trusses are made of steel.
Technical Specifications
The Yale Lock Bridge has a number of technical specifications that are noteworthy. The bridge’s overall length is 540 feet, and its width is 18 feet. The bridge’s vertical clearance is 20 feet, and its horizontal clearance is 120 feet. The bridge is designed to carry a maximum load of 50 tons, and its trusses are rated for a live load of 30 tons per square foot.
| Category | Specification |
|---|---|
| Length | 540 feet |
| Width | 18 feet |
| Vertical Clearance | 20 feet |
| Horizontal Clearance | 120 feet |
| Maximum Load | 50 tons |
| Live Load | 30 tons per square foot |
Historical Significance
The Yale Lock Bridge is listed on the National Register of Historic Places and is considered a significant example of a camelback truss bridge. The bridge has been in continuous use since its construction in 1924 and has played an important role in the development of the region’s transportation infrastructure. The bridge has also been the subject of several restoration projects over the years, which have helped to preserve its historic integrity and ensure its continued safety and functionality.
Restoration Efforts
In 2006, the Yale Lock Bridge underwent a major restoration project, which involved the replacement of the bridge’s deck and the repair of its trusses. The project was funded by the Oklahoma Department of Transportation and was carried out by a team of engineers and contractors. The restoration project helped to extend the life of the bridge and ensure its continued safety and functionality.
The Yale Lock Bridge is an important example of the region's transportation history and a testament to the innovative engineering solutions that were developed during the early 20th century. The bridge's camelback truss design and historic significance make it a unique and fascinating piece of infrastructure that continues to play an important role in the region's transportation network.
What is the significance of the Yale Lock Bridge’s camelback truss design?
+The camelback truss design of the Yale Lock Bridge is significant because it allows the bridge to withstand heavy loads and stresses associated with railroad traffic. The design features a curved upper chord, which gives the bridge its distinctive humped appearance and provides additional strength and stability.
What restoration efforts have been made to the Yale Lock Bridge?
+In 2006, the Yale Lock Bridge underwent a major restoration project, which involved the replacement of the bridge’s deck and the repair of its trusses. The project was funded by the Oklahoma Department of Transportation and was carried out by a team of engineers and contractors.
