Sewickley Bridge

{{Infobox Bridge

|bridge_name= Sewickley Bridge

|image= Sewickleybridge.jpg

|image_size=300px

|caption= Sewickley Bridge from upstream.

|official_name=

|also_known_as=

|carries= 20px 2 lanes of the Orange Belt
1 pedestrian walkway

|crosses= Ohio River

|locale= Sewickley, Pennsylvania

|maint=

|id=

|design= continuous truss bridge

|mainspan= {{Convert|750|ft}}

|length= {{Convert|1,500|ft}}

|width=

|clearance=

|below= {{Convert|73|ft}}

|traffic=

|open= October 21, 1981

|closed=

|toll=

|map_cue=

|map_image=

|map_text=

|map_width=

|coordinates= {{coord|40|31|59|N|80|11|16|W|type:landmark_region:US-PA|display=inline,title}}

}}

The Sewickley Bridge is a steel continuous truss bridge spanning the Ohio River between Sewickley and Moon Township, Pennsylvania, carrying State Route 4025 and the Orange Belt. It was built by American Bridge Company and opened on October 21, 1981.Grata, Joe. "[https://www.newspapers.com/image/146725665/?terms=%22Sewickley%20Bridge%22&match=1 Sewickley Bridge Cheered]." Pittsburgh, Pennsylvania: The Pittsburgh Press, October 21, 1981, p. 8 (subscription required).

History and architectural features

The current bridge is the second bridge to occupy the site; the original Sewickley Bridge opened on September 19, 1911, after twenty-six months of construction.

Using lattice-beam cantilever truss design, the bridge was built by the Fort Pitt Bridge Works, and was officially named the Ohio River Bridge No. 1.

The current bridge's center span is {{convert|750|ft|m}} long; the side spans are each {{convert|375|ft|m}} long. The bridge deck contains two vehicle lanes and a pedestrian sidewalk. It crosses {{convert|73|ft|m}} above the river. It is owned by the Pennsylvania Department of Transportation.

By the late 1970s, the bridge had deteriorated badly.Sharpe, Jerry. "[https://www.newspapers.com/image/142721874/?terms=%22Sewickley%20Bridge%22&match=1 Sewickley Bridge ... 'The Only Thing Holding It Up Is The Paint].'" Pittsburgh, Pennsylvania: The Pittsburgh Press, June 5, 1977, p. 332 (subscription required). The bridge was closed for emergency repairs from January 30 to May 20, 1977,Leherr, Dave. "[https://www.newspapers.com/image/89369879/?terms=%22Sewickley%20Bridge%22&match=1 Shapp Orders Quick Sewickley Span Work: I-79 Bridge May Reopen in April]." Pittsburgh, Pennsylvania: Pittsburgh Post-Gazette, March 8, 1977, p. 1 (subscription required).Boyle, Patrick. "[https://www.newspapers.com/image/147198529/?terms=%22Sewickley%20Bridge%22&match=1 Sewickley Bridge Work Starting Soon]." Pittsburgh, Pennsylvania: The Pittsburgh Press, March 8, 1977, p. 6 (subscription required). and also from January 11 to March 2, 1979. A replacement bridge was ordered; the design was completed in late 1979.

The old Sewickley Bridge closed again on May 14, 1980, and was demolished in July of that year."[https://www.newspapers.com/image/146923964/?terms=%22Sewickley%20Bridge%22&match=1 Sewickley Bridge Removed Easily]." Pittsburgh, Pennsylvania: The Pittsburgh Press, July 10, 1980, p. 2 (subscription required).

To reduce construction costs, the piers from the original bridge were reused for the new bridge. This meant that the old bridge had to be completely demolished before the new bridge could be built. The central {{convert|350|ft|m|adj=on}} suspended span was lowered onto barges and floated away, while the rest of the bridge was dismantled piece by piece to maintain balance of the cantilever arms. The crossing was closed for a total of seventeen months before the new bridge opened.

The new bridge mimicked the old bridge's shape and scale, although it used box members instead of lattice beams and was of a continuous truss design instead of a cantilever-and-suspended-span design.

The original bridge was capped by four decorative finial spires; these were saved and put on public display. One sits in a park in downtown Sewickley, along with the keystone-shaped builder's plaque from the original bridge. Another is near the old Sewickley train station between Route 65 and the river, near the north end of the current bridge; the third spire is at Station Square in Pittsburgh. The fourth is on display across the river in Coraopolis.

The location of the bridge is {{coord|40|31|59|N|80|11|16|W|type:landmark_region:US-PA}} (40.5331234°, -80.1878365°),{{cite web|url=https://www.census.gov/geo/www/gazetteer/gazette.html|publisher=United States Census Bureau|access-date=2011-04-23|date=2011-02-12|title=US Gazetteer files: 2010, 2000, and 1990}} at an elevation of {{Convert|692|ft}}.

Impact of bridge closures

During the 1970s and 1980s, the length and frequency of the bridge's closures caused economic hardship for multiple businesses in Coraopolis, Edgeworth, Moon Township, and Sewickley. Hegner's Hardware Store reported a revenue loss of twelve to fifteen percent in 1977 while the owner of one Burger King Restaurant in Edgeworth reported a loss of twenty-five percent, or roughly $10,000 per month, that same year. In addition, the health and lives of residents who were experiencing acute bleeding or coronary emergencies and in need of rapid medical treatment at the Sewickley Valley Hospital were put at higher risk due to longer travel times for emergency vehicles."[https://www.newspapers.com/image/90055800/?terms=%22Sewickley%20Bridge%22&match=1 Sewickley Bridge Closing to Put Crimp in Area Businesses]." Pittsburgh, Pennsylvania: Pittsburgh Post-Gazette, January 15, 1979, p. 3 (subscription required).

The bridge closures also significantly lengthened travel time to and from the Greater Pittsburgh International Airport for area residents and visitors.Boyle, "Sewickley Bridge Work Starting Soon," The Pittsburgh Press, March 8, 1977.

Gallery

File:Sewickley Bridge 1910.jpg|1910 Postcard image of the old Sewickley Bridge

File:SewickleyBridgePlaque.JPG|Builder's plaque from the original Sewickley Bridge

File:SewickleyBridgeFinial.JPG|Finial of the original Sewickley Bridge, preserved in a park in Sewickley

References

External links

{{HAER |survey=PA-53 |id=pa0091 |title=Sewickley Bridge}}
[https://pghbridges.com/ambridge/0568-4487/sewickley1981.htm Sewickley Bridge 1981]
[https://pghbridges.com/ambridge/0568-4487/sewickley1911.htm Sewickley Bridge 1911]
[https://web.archive.org/web/20060502125427/https://filebox.vt.edu/users/bharper/roads/sewbridge4.html Reflections of the Sewickley Bridge]
[https://freepages.history.rootsweb.com/~jmohney/new_page_185.htm Postcard images of the first Sewickley Bridge]

{{Crossings navbox

|structure = Bridges

|place = Ohio River

|bridge = Sewickley Bridge

|bridge signs = SR 4025 20px

|upstream = Neville Island Bridge

|upstream signs = 20px 20px

|downstream = Ambridge–Aliquippa Bridge

|downstream signs =

}}

Category:Bridges completed in 1911

Category:Bridges completed in 1981