Sideling Hill Tunnel: Wikis

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Sideling Hill Tunnel
West portal
Overview
Line South Penn abandoned
Location Blueridge Mountain
Fulton County, Pennsylvania
Coordinates *Sideling Hill Tunnel is at coordinates 40°02′53″N 78°07′45″W / 40.048056°N 78.129167°W / 40.048056; -78.129167 (Sideling Hill Tunnel)Coordinates: 40°02′53″N 78°07′45″W / 40.048056°N 78.129167°W / 40.048056; -78.129167 (Sideling Hill Tunnel)
Status Abandoned Pennsylvania Turnpike
Currently Pike2Bike Trail
Operation
Work begun 1881 - railway
1938 - highway
Opened October 1, 1940 - Interstate 76
Owner South Pennsylvania Railroad abandoned
Pennsylvania Turnpike Commission abandoned
Pike2Bike Trail
Character Hiking, biking and skateboard trail
Technical
Construction 1881-1885 - railway
1938-1940 -highway
Length 6,662 feet (2,031 m) -railway
6,782 feet (2,067 m) -highway
No. of lanes 2
Lowest elevation 1,277 feet (389 m)

Sideling Hill Tunnel is one of three original Pennsylvania Turnpike tunnels abandoned (this one in 1968) after two massive realignment projects. The others are nearby Rays Hill Tunnel, and further west, the Laurel Hill Tunnel. It was less expensive to realign the Turnpike than to bore a second tube for four lane traffic. Sideling Hill Tunnel is 6,782 feet (2,067 m) long. It was the longest of the original tunnels on Pennsylvania Turnpike. The Ray's Hill Tunnel and Sideling Hill Tunnel are now part of the Pike2Bike Trail. Together, the two tunnels as well as the roadway are commonly known as the Abandoned Pennsylvania Turnpike.[1]

From the Turnpike's opening in 1940 until the realignment projects, the tunnels were bottlenecks; opposing traffic in the same tubes reduced speeds. Four other tunnels on the Turnpike - Allegheny Mountain, Tuscarora Mountain, Kittatinny Mountain, and Blue Mountain - each had a second tube bored, the least expensive option. All of the original tunnels except for the Allegheny Mountain Tunnel were part of "Vanderbilt's Folly", the never-completed South Pennsylvania Railroad.

Contents

History

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Construction

The Sideling Hill Tunnel's original plans date back to the year 1881, when surveying for the brand-new South Pennsylvania Railroad began. Construction began that year, with the plans for nine brand-new tunnels, most of which were drilled by 1885.[2][3][4] The Sideling Hill Tunnel was built before December 1884 by John O'Brien, an engineer from Rhinebeck, New York.[5] On July 6, 1885, a blast occurred at the end of the Sideling Hill Tunnel. The blast, which was caused by dynamite, claimed the lives of three people, including engineer John O'Brien. Several other people were injured in the blast.[6] Just sixteen days later, another blast occurred in the tunnel, taking the lives of a Hungarian worker, along with two African-Americans, two Italians, and one Irishman. The bodies were so cut by the rocks during the blast, that the people were almost unidentifiable.[7] Unfortunately William H. Vanderbilt, who had started the plans for the railroad, noticed that expenses began to inflate, and he began to look for a second way to work things out. The construction was abandoned and never finished. In 1938, the Pennsylvania Turnpike Commission took over the entire grade of the abandoned railway.[2][3][4]

The Pennsylvania Turnpike Commission started construction on a new toll highway from Carlisle, Pennsylvania to Irwin, Pennsylvania in 1938. When the Pennsylvania Turnpike opened on October 25, 1940, the Sideling Hill Tunnel was one of the seven original tunnels along the highway, six of which were built from the old railroad tunnels from the 1880s. The Allegheny Mountain Tunnel was constructed from scratch rather than from the tunnels because of structural concerns.[2][3][4]

The eastern portal of the Sideling Hill Tunnel in 2009

Beginning in 1951, the eastbound traffic at the Laurel Hill Tunnel would back up during the summer weekends. By 1958, the Laurel Hill experienced congestion anytime from June to November. Because of the long bottlenecks, the Commission started looking into ways to remove the congestion. There were studies that began in the mid-1950s to decide on what to do with the tunnels. The studies looked into the major tunnels, the Laurel Hill and Allegheny Mountain, and the possibility of adding a second tube, or "twinning", to them. Additional studies were put in for the remaining five mainline tunnels, including the Sideling Hill.[1]

Action on tunnels

After the studies completed, the decision was made to go ahead with a US $100 million [nb 1][8] construction project to work with the tunnels. Construction began on September 6, 1962, with the first subproject being a bypass of the Laurel Hill Tunnel. On October 30, 1964, just two years after construction began, the Laurel Hill Bypass was completed and opened. The Laurel Hill Tunnel was closed for good on that day. However, this was not the last bypass to occur for tunnels along the turnpike. Two years after the closing of the Laurel Hill, the Allegheny Mountain became the first tunnel to be twinned, and opened on August 25, 1966. With the twinning of the Blue Mountain, Kittatinny Mountain and Tuscarora Mountain tunnels under construction, the Commission turned its focus to the remaining two mainline tunnels, the Rays Hill Tunnel (the shortest tunnel) and the Sideling Hill Tunnel (the longest tunnel).[1]

The site of the former Cove Valley Travel Plaza. The Sideling Hill Tunnel is about a half mile to the west

An engineering report dating back to 1961 suggested that building a bypass around the last two mainline tunnels was the best way to solve the congestion. The Commission awarded three contracts to construct the bypass from July 1966 to March 1967. The contracts cost $17.2 million [nb 2] for roadway and another $2.5 million[nb 3] for construction of a new Sideling Hill Service Plaza, to replace the Cove Valley Service Plaza, which was along the to-be-bypassed alignment. The $2.5 million[nb 4] project was to include ramps from both directions to the service plaza, so it could serve both directions. The style of the tunnel bypass was to follow the same style as the Laurel Hill bypass. On November 26, 1968, the three twinned tunnels opened, and the bypass of the Rays Hill and Sideling Hill Tunnels opened. The new bypass also opened the Breezewood Interchange and the number of lanes along the turnpike expanded from four (two in each direction) or ten (five in each direction).[1]

In 2001, the Turnpike Commission gave control of the 13.5 miles (21.7 km) length of the Rays Hill and Sideling Hill Tunnels and other roadways to the Southern Alleghenies Conservancy, who began work to convert the stretch into a bicycle trail. The trail is used by hundreds of bicycle riders, and studies occurred in 2004 and 2005 to figure how to best safely construct the trail. Because there is a lack of good lighting in the tunnels the conservancy wants to look into how to solve it. The system is called the Pike2Bike Trail and is planned to be an 18 miles (29 km) mountain bicycle loop that serves access to the Pennsylvania Department of Transportation's Bicycle Route S.[9]

Notes

  1. ^ In 1962 the contract cost on average of $100 million. This is equivalent to $704 million in present day terms.
  2. ^ In 1966 the contract cost on average of $17.2 million. This is equivalent to $113 million in present day terms.
  3. ^ In 1966 the contract cost on average of $2.5 million. This is equivalent to $16.4 million in present day terms.
  4. ^ In 1966 the contract cost on average of $2.5 million. This is equivalent to $16.4 million in present day terms.

References

  1. ^ a b c d Kitsko, Jeffrey J. (2009). "Pennsylvania Turnpike" (in English). Pennsylvania Highways. pp. 103. http://www.pahighways.com/toll/PATurnpike.html. Retrieved 2009-02-13.  
  2. ^ a b c Binzen, P.; Daughen, J. (1971). The Wreck of the Penn Central.  
  3. ^ a b c Rainey, Lee; Frank Kyper (1996) [1982]. East Broad Top. San Marino, California: Golden West Books. ISBN 0-87095-078-9.  
  4. ^ a b c Taber, Thomas T., III (1987). Railroads of Pennsylvania Encyclopedia and Atlas. Thomas T. Taber III. ISBN 0-9603398-5-X.  
  5. ^ "The Aqueduct Bids". New York Times. December 10, 1884. pp. 2. http://query.nytimes.com/mem/archive-free/pdf?_r=1&res=9D03E0D6113EEF33A25753C1A9649D94659FD7CF. Retrieved 2009-02-13.  
  6. ^ "Three Killed and Several Injured". New York Times. July 7, 1885. pp. 5. http://query.nytimes.com/mem/archive-free/pdf?res=9D0CE2DD1039E533A25754C0A9619C94649FD7CF. Retrieved 2009-02-13.  
  7. ^ "Killed By Premature Blast". New York Times. July 23, 1885. pp. 3.  
  8. ^ "Consumer Price Index (estimate) 1800–2008". Federal Reserve Bank of Minneapolis. http://www.minneapolisfed.org/community_education/teacher/calc/hist1800.cfm. Retrieved 2009-08-01.  
  9. ^ "Pike2Bike: History" (in English). Southern Alleghenies Conservancy. 2009. http://www.pike2bike.org/. Retrieved 2009-02-13.  

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