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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
|---|---|---|---|---|---|
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Exchange Street Bridge
Joseph A. Scapelliti Memorial Bridge | Exchange Street Over Erie Canal | Lockport: Niagara County, New York | Metal Rivet-Connected Warren (No Verticals) Pony Truss, Movable: Vertical Lift and Approach Spans: Metal Deck Girder, Fixed | 1915 By Builder/Contractor: McMyler-Interstate Company of Cleveland, Ohio |
| Technical Facts |
| Rehabilitation Date | Main Span Length | Structure Length | Roadway Width | Main Spans | Approach Spans | NBI Number |
| 2001 | 99.7 Feet (30.4 Meters) | 133 Feet (40.5 Meters) | 23.6 Feet (7.2 Meters) | 1 | 2 | 4454150 |
This bridge is an example of one of the Erie Canal's unique lift bridges. The above photo shows the bridge in a partially raised position. This particular example of these lift bridges has been rehabilitated. Overall, the rehabilitation was sensitive to the historic significance of the bridge, although typical alterations such the replacement of failed rivets with bolts, and modern metal guardrails have added to the roadway side of the trusses are present. Bricks still pave the roadway leading up to the bridge, but these are new. The bridge likely had older bricks leading up to it in a similar fashion prior to rehabilitation. The bridge retains original lattice railings for the sidewalks. The plaque shows the McMyler-Interstate Company of Cleveland Ohio as being the builders of the bridge in 1915. A portion of the plaque was cut out and a 1959 placed in the hole. While this is at first apparently an odd way of indicating that a rehabilitation or repair took place in 1959, the National Bridge Inventory does not reference a 1959 rehabilitation, and this number may instead be part of some old bridge numbering system.
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.
View Historic American Engineering Record (HAER) Overview of Erie Canal Locks at Lockport, NY (Alternate Format)
New York State Page On Erie Canal
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