Pennsylvania Turnpike Commission
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Pennsylvania Turnpike Commission Gary L. Graham, P.E. Bridge Engineering Manager, Pennsylvania Turnpike Commission Welcome to the 2004 Interna- from the Pennsylvania Motor Truck fense Highways was legislated and tional Bridge Conference. The Association, proposed the idea of funded by Congress. The PTC was Pennsylvania Turnpike Commis- building a four-lane, all-weather, the forerunner of all other toll sion is proud to be this year’s Fea- toll road utilizing the old aban- roads in the country. tured Agency and the first doned South Penn Railroad bed. Due to the success of the origi- “Agency” to be featured by this Many thought the idea of building nal section of the Turnpike, other prestigious Conference in its his- a highway, and a toll road at that, extensions followed. It was ex- tory. We are excited to share the through the rugged barriers of the tended to Valley Forge in the east many chapters of our history, and Alleghenies and across so many Pennsylvania Turnpike, circa 1940 in 1950, and then onto the New to present our current and future waterways, was “hairbrained”. Es- Jersey border in 1954. To the west, plans to reconstruct, improve, and pecially, since two trans-state high- minimum sight distance of 600 the Turnpike was extended to the expand the Turnpike. ways already existed in the Lincoln feet. Ohio line in 1951. The Northeast The origin of the Pennsylvania highway (U.S. 30) and the William On October 1, 1940, the road Extension opened in 1957, and Turnpike Commission (PTC) goes Penn Highway (U.S. 22). built on the South Penn Railroad took the Turnpike north to back to the glory days of the rail- On May 21, 1937, Act No. 211 alignment was officially opened Scranton. In 1992, the Beaver roads. A new east-west passage was signed into law, authorizing the to traffic at a total cost of $70 mil- Valley Expressway was com- through Pennsylvania called the construction of a 160-mile toll lion. America’s first long-dis- pleted, and in 1993, the Amos K. South Penn Railroad was to be con- highway between Middlesex, tance superhighway was an im- Hutchinson Bypass was com- structed to compete against the for- Cumberland County, and Irwin, mediate success. More than pleted, both in the western part of midable Pennsylvania Railroad. Westmoreland County, both termini 26,000 vehicles were using it the state, bringing the total mile- The alignment was cleared, the rail- linking to existing roads (U.S. 11 daily. That skyrocketed to over age to approximately 500 miles of road bed surveyed, and the boring and the Lincoln highway). It also 2.4 million in twelve month’s toll road. of nine tunnels started. However, created the Turnpike Commission time. This was far more than the The original section of the due to a settlement between the to supervise the project. The law 715 cars per day estimated in a Turnpike contained 307 bridges competing railroad owners, work stipulated, however, that not a cent 1939 study by the Bureau of Pub- and culverts. The current Turnpike on the South Penn Railroad was of State tax money should be spent; lic that also stated toll roads system has over 1300 structures, stopped and the rail line was never it was up to the Commission to would be big money losers (so many of which are original con- completed. One of the design en- handle the financing through the much for studies). struction. We are currently reha- gineers, bitter over ending the sale of bonds. The bonds were to For the first time in the history bilitating or replacing of many of project, wrote “And here, for the be paid off by revenues generated of roads in Pennsylvania a super- these original structures including time being, and probably for a long through tolls. highway existed which provided some of our largest bridges. time to come, is buried the best Ground was broke on October free flow of traffic 160 miles The Susquehanna River route ever devised, or that can be 27, 1938, and in 23 months time, across the State. The Turnpike Bridge, in the middle part of the devised, between the Ohio Valley motor vehicles were traveling the was termed the foundation of a na- state, is the longest span on the and the Atlantic.” The abandoned “Dream Highway”. The original tionwide system of superhighways Turnpike at over 4,500 feet, and railroad bed sat idle for many years. section employed over 1,100 design and sixteen years later the Na- will be replaced in its entirety start- Then, in 1934, two individuals, one engineers and 155 contractors from tional System of Interstate and De- ing next year by dual concrete seg- from the Pennsylvania State Plan- 18 states for a total work force of ning Commission, and the other 20,000. More than 5,000 men worked on seven tunnels at one time, an engineering and construc- tion feat never again known to man. It was an exciting time to be an engineer or constructor involved with the project. The engineers de- veloped and used design criteria and safety standards that were only dreamed about before in this coun- try. Some of the new criteria in- cluded a maximum grade of 3 per- cent and a maximum curvature of 6 degrees. Travelers were provided South Penn Railroad construction, 18?? with super-elevated curves and a The Susquehanna River Bridge 4 IBC 2004 — The Official Publication of the International Bridge Conference® only four remain operational. A duel tube was constructed at each of the remaining four tunnel loca- tions to handle the increased traf- fic volume. The other three origi- nal tunnels were bypassed at some time to reduce operational expen- ditures. The Northeast Extension also has a set of tunnels in Lehigh County, for a total of five active tunnel locations on the current Turnpike system. We are currently Lehigh County Tunnel studying the feasibility of bypass- ing the Allegheny Tunnel and ma- efficient traffic movements at all Lehigh and Pohopoco River Bridges jor rehab is planned for the other interchanges. And an even newer tunnels. “high-speed” E-Z Pass system is mental bridges. These will be the ders and a 10-foot median for a to- Today, the Turnpike continues currently being planned and in- first major concrete segmental tal width of 78 feet. The recon- to expand with its newest sections stalled at certain locations. bridges in Pennsylvania. structed roadway section provides of toll highway in western Penn- All these projects, the large The Allegheny River Bridge is for a future third lane in each di- sylvania. The Mon/Fayette Ex- bridge replacements, the total re- located in western Pennsylvania, rection, full 12-foot shoulders, and pressway will stretch about 65 constructions, the new expansions and is approximately 2,600 feet a wider median for a total width of miles south of Pittsburgh and con- and interchanges, and many others, long. It is currently in preliminary over 110 feet. This requires almost nect to Interstate 68 in West Vir- make it an exciting time again at design for total replacement. all the bridges crossing over the ginia. The Southern Beltway will the Turnpike. We welcome you to The Lehigh and Pohopoco Turnpike to be replaced with longer form an arc about 30 miles long hear more about Turnpike and these River Bridges, two of our larger structures. The majority of the with a radius reaching approxi- projects during our Featured structures on the Northeast Exten- mainline brides are also being re- mately 15 miles out from Agency Session and by stopping by sion of the Turnpike, are in final placed for the wider widths. Pittsburgh’s Golden Triangle. the Featured Agency Room. We design and will also be replaced in To date, over 24 miles have been At the eastern end of the state, a hope you enjoy the Conference! their entirety. reconstructed and another 21 miles new connection between the Turn- Many of our other lesser bridges are in construction. Future plans call pike and Interstate 95 is being de- are being replaced as part of our To- for over 16 miles to be reconstructed signed by way of a high-speed in- tal Reconstruction Program. Just every year for the next ten years. terchange. The project will involve like many of our bridges, the Turn- Many things have changed since the widening nine miles of the Turn- pike roadway is nearing the end of Turnpike was originally constructed, pike and the construction of a new its life expectancy, and has to be re- most noticeably the cost. Today, re- bridge crossing the Delaware River. habilitated or replaced. Our Total construction of one mile of Turnpike The project will also incorporate Reconstruction Program calls for roadway is averaging at $10 million the latest in intelligent transporta- completely rebuilding the Turnpike compared to $500,000 per mile tion systems. roadway from the sub-grade up. when the Turnpike was originally Electronic Toll Collection (E-Z The original Turnpike provided for constructed, which included the con- Pass) is another relatively new fea- two 12-foot wide travel lanes in struction of seven tunnels. ture to be implemented throughout each direction with 10-foot shoul- From the original seven tunnels, the Turnpike system providing for E-Z Pass System Bridge Name? Pennsylvania Turnpike - Interstate 95 interchange Pittsburgh ENGINEER 5 The Overbrook Era: From Freight to Transit By: John M. Stasko DMJM/Gannett ing done to keep the Overbrook subway system into and around the The Birth of a Railroad Line in operation.