This bridge is one of a number of surviving similar bridges built over the Erie Canal around the 1910s in rural locations. Dirt approaches provided a clearance that was large enough for the boats of the time to pass under, therefore fixed bridges like this one were acceptable. In urban locations where there was not enough room for the dirt approaches, vertical lift bridges like Adams Street in Lockport were built. These bridges were standard plan bridges for the Erie Canal. However, both the lift bridges and the fixed bridges utilize designs that are uncommon outside of the Erie Canal. The fixed bridges like this utilize a double-Warren truss configuration which away from the canal is unusual.
This bridge has been rehabilitated. The approaches and abutments for the bridge are concrete and were completely reconstructed as part of the rehabilitation. The actual truss bridge retains good historic integrity, with original design lattice guardrails still present behind the modern guardrails of the bridge. The deck of the bridge is metal grating. No builder plaques survive on the bridge, but an informational plaque lists the builder as Empire Engineering Corp. The rehabilitation of this bridge retained its one-lane width, and the weight limit of the bridge in 2005 was 20 tons.
A stop sign is posted at each end with an "all way" sign below. This makes the cars stop to see if anybody is coming before proceeding across the bridge. It also slows the traffic down so they are not crossing at unsafe speeds. This is an example of how a one-lane bridge can be made to be continue to be safe and functional on 21st Century roads. It should serve as a guide for preservation projects elsewhere. With the stop signs, the one lane bridge is no more a hazard than a four-way stop intersection. Many states and highway agencies fail to see the feasibility of such simple solutions as methods for preserving historic bridges.
The Erie Canal is one of the most famous and historically significant canals in the United States. Aside from the widely recognized historical significance of the canal as a transportation facility itself, a lesser known fact is that the canal is historically significant for the bridges that have spanned the canal over the years. It was here on the Erie Canal where Squire Whipple found a place to successfully get his "Whipple Arch" bowstring truss bridges constructed in significant quantities in the mid-1800s. The success of his Whipple Arch bridges helped contribute to the nationwide transition from wooden bridges to metal bridges. The period of time from 1905-1918 where the Erie Canal was upgraded and widened to become part of the larger New York State Barge Canal was a time of change for the bridges of the canal. Between the process of widening and upgrading the canal, and the nationwide trend to build more substantial bridges in the early 20th Century, the previous generation of bridges (many undoubtedly those Whipple Arch bridges) were replaced by a series of new bridges. These bridges have proved to be very durable and thanks to a clear commitment to preservation on the part of New York State Department of Transportation and other agencies, the Erie Canal, particularly the western section from Lockport to Spencerport boasts one of the highest densities of historic bridges of any waterway in the country. The vast majority of bridges on this section are maintained in beautiful condition.
Although the new bridges from the early 20th Century took a variety of forms, two forms were by far the most common. In rural or spacious areas, a fixed double-intersection Warren through truss was used, with a dirt approach providing the modest elevation needed for a fixed bridge over the canal. Double-intersection Warren truss bridges are generally considered an uncommon truss type on a nationwide basis. In urban and less spacious areas, a vertical lift bridge was used. The vertical lift bridges are an unusual design. Instead of towers that rise above the bridge in a traditional vertical lift bridge and pull the truss span up using cables, these bridges have vertical endposts which extend below the deck and into the ground. When operated, these extended endposts (called the lifting frame) rise out of the ground. In an engineering sense, these unusual vertical lift bridges might be thought of as bedstead truss bridges. Another unique feature of these lift bridges are the stairways found at each end of the bridge on the sidewalks. These stairways allow pedestrians to continue to cross the bridge when the structure is in the raised position. These vertical lift bridges continue to operate for boats today, so observing these unique bridges remains possible.
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