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Allegheny Mountain Tunnel
The Allegheny Mountain Tunnel is a vehicular tunnel carrying the Pennsylvania Turnpike through the Allegheny Mountains. At this point, the Turnpike carries Interstates 70 and 76. When the tunnel was built, it was considered an "engineering marvel." The tunnel was built in 1939 and is used by 11 million vehicles annually today. Throughout the 2000s, state officials attempted to implement plans to replace the tunnel, citing its age. History The original Allegheny Mountain Tunnel was built in the late 19th century for the South Pennsylvania Railroad, which was never completed. This tunnel was not used due to concerns about its structural integrity. The eastern end of this original tunnel can be seen by parking on the service road at the turnpike's eastern portal and walking up to the area just above and a bit north of the turnpike portal. The opening is visible in the rocks just uphill. Entering this old tunnel is prohibited. The current westbound tunnel was built in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somerset County, Pennsylvania
Somerset County (Pennsylvania German: ''Somerset Kaundi'') is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 74,129. Its county seat is Somerset. The county was created from part of Bedford County on April 17, 1795, and named after the county of Somerset in England. Somerset County comprises the Somerset, PA micropolitan statistical area, which is included in the Johnstown–Somerset, PA combined statistical area. The county is famous for being the crash site of United Airlines Flight 93, one of the four flights involved in the September 11 attacks, which crashed near the village of Shanksville after the flight's passengers struggled with Al-Qaeda hijackers for control of the plane, which terrorists intended to fly into either the U.S. Capitol or the White House. The Somerset County Amish community is the second oldest Amish community in the world that still exists, established in 1772. It is located in the South of the county a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosives
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be * chemical energy, such as nitroglycerin or grain dust * pressurized gas, such as a gas cylinder, aerosol can, or BLEVE * nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high explosives" and materials that deflagrate are said to be "low explosives". Explosives ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll Tunnels In Pennsylvania
Toll may refer to: Transportation * Toll (fee) a fee charged for the use of a road or waterway ** Road pricing, the modern practice of charging for road use ** Road toll (historic), the historic practice of charging for road use ** Shadow toll, payments made by government to the private sector operator of a road based on the number of vehicles using the road * Road toll (Australia and New Zealand), term for road death toll, i.e., the number of deaths caused annually by road accidents Brands and enterprises * Toll Brothers, Horsham Township, Pennsylvania based construction company founded by brothers Robert I. Toll and Bruce E. Toll * Toll Collect, a transportation support company in Germany * Toll Group, an Australian transportation company ** Toll Domestic Forwarding, an Australian freight forwarder ** Toll Ipec, Australian transportation company ** Toll Resources & Government Logistics Science * Toll (gene), encode members of the Toll-like receptor class of proteins * Toll-l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Buildings And Structures In Somerset County, Pennsylvania
Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations. Transport enables human trade, which is essential for the development of civilizations. Transport infrastructure consists of both fixed installations, including roads, railways, airways, waterways, canals, and pipelines, and terminals such as airports, railway stations, bus stations, warehouses, trucking terminals, refueling depots (including fueling docks and fuel stations), and seaports. Terminals may be used both for interchange of passengers and cargo and for maintenance. Means of transport are any of the different kinds of transport facilities used to carry people or cargo. They may include vehicles, riding animals, and pack animals. Vehicles may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 76 (Ohio–New Jersey)
Interstate 76 (I-76) is an east–west Interstate Highway in the Eastern United States. The highway runs approximately from an interchange with I-71 west of Akron, Ohio, east to I-295 in Bellmawr, New Jersey. This route is not contiguous with I-76 in Colorado and Nebraska. Just west of Youngstown, I-76 joins the Ohio Turnpike and heads around the south side of Youngstown. In Pennsylvania, I-76 runs across most of the state on the Pennsylvania Turnpike, passing near Pittsburgh and Harrisburg before leaving the turnpike at Valley Forge to become the Schuylkill Expressway and eventually entering Philadelphia and then crossing the Walt Whitman Bridge into New Jersey. After I-76 reaches its eastern terminus, the freeway continues as Route 42 and the Atlantic City Expressway to Atlantic City. Route description , - , OH , , - , PA , , - , NJ , , - , Total , Ohio I-76 begins at exit 209 of I-71 in Westfield Township, approximately east of Lodi, O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittsburgh Post-Gazette
The ''Pittsburgh Post-Gazette'', also known simply as the PG, is the largest newspaper serving metropolitan Pittsburgh, Pennsylvania. Descended from the ''Pittsburgh Gazette'', established in 1786 as the first newspaper published west of the Allegheny Mountains, the paper formed under its present title in 1927 from the consolidation of the ''Pittsburgh Gazette Times'' and ''The Pittsburgh Post''. The ''Post-Gazette'' ended daily print publication in 2018 and has cut down to two print editions per week (Sunday and Thursday), going online-only the rest of the week. In the 2010s, the editorial tone of the paper shifted from liberal to conservative, particularly after the editorial pages of the paper were consolidated in 2018 with '' The Blade'' of Toledo, Ohio. After the consolidation, Keith Burris, the pro- Trump editorial page editor of '' The Blade'', directed the editorial pages of both papers. Early history ''Gazette'' The ''Post-Gazette'' began its history as a four-pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rays Hill Tunnel
Rays Hill Tunnel is one of three original Pennsylvania Turnpike tunnels which were abandoned (this one in 1968) after two massive realignment projects. The others included the Sideling Hill Tunnel, and farther west, the Laurel Hill Tunnel. Rays Hill Tunnel is long. It was the shortest of the seven original tunnels on Pennsylvania Turnpike. Due to its short length, it only contains ventilation fans at its western portal. Its eastern portal is the only one of the 14 tunnel portals on the original turnpike that has no ventilation fan housing. It can be seen by westbound traffic on the Turnpike. The tunnel connects Bedford and Fulton Counties in South Central Pennsylvania. Tunnel Bypass From the Turnpike's opening in 1940 until the realignment projects, the tunnels were bottlenecks due to reduced speeds with opposing traffic in the same tubes. Four other tunnels on the Turnpike - Allegheny Mountain, Tuscarora Mountain, Kittatinny Mountain, and Blue Mountain - each had a seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurel Hill Tunnel
Laurel Hill Tunnel is a tunnel on the Pennsylvania Turnpike that was bypassed and abandoned in 1964. It is bored through Laurel Ridge, spanning the border of Westmoreland and Somerset counties. Its western portal may be seen from the eastbound side of the Turnpike at milepost 99.3. The tunnel was built for the never-completed South Pennsylvania Railroad, as were two other tunnels to its east—Sideling Hill and Rays Hill—that were similarly on the original Turnpike and abandoned after being bypassed. Bypass The tunnels on the Turnpike had been bottlenecks ever since the Turnpike's opening in 1940 due to reduced speeds and two-way traffic in a single tube. A second tube was added to four tunnels— Allegheny Mountain, Tuscarora Mountain, Kittatinny Mountain, and Blue Mountain—where it was the less expensive option. Unlike the Sideling Hill and Rays Hill tunnels, the Laurel Hill Tunnel is not on the bypassed section commonly known as the Abandoned Pennsylvania T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video sharing and social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's AdSense program, which seeks to generate more revenue for both parties. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WJAC-TV
WJAC-TV (channel 6) is a television station licensed to Johnstown, Pennsylvania, United States, serving the Johnstown– Altoona–State College market as an affiliate of NBC and The CW Plus. It is owned by Sinclair Broadcast Group, which provides certain services to Johnstown-licensed Fox affiliate WWCP-TV, channel 8 (owned by Sinclair partner company Cunningham Broadcasting) and Altoona-licensed ABC affiliate WATM-TV, channel 23 (owned by Palm Television, L.P. and operated by Cunningham Broadcasting under a local marketing agreement (LMA)) under a time brokerage agreement (TBA). WJAC-TV's studios (which also house master control and some internal operations for WWCP-TV and WATM-TV) are located on Old Hickory Lane in Upper Yoder Township (with a Johnstown postal address), and its transmitter is located northwest of the city in Laurel Ridge State Park along the Cambria– Westmoreland county line. WWCP-TV and WATM-TV maintain separate facilities on Lulay Street in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hazardous Materials
Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials ( syllabically abbreviated as HAZMAT or hazmat). An example for dangerous goods is hazardous waste which is waste that has substantial or potential threats to public health or the environment. Hazardous materials are often subject to chemical regulations. Hazmat teams are personnel specially trained to handle dangerous goods, which include materials that are radioactive, flammable, explosive, corrosive, oxidizing, asphyxiating, biohazardous, toxic Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a subs ..., pathogenic, or allergenic. Also included are ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sideling Hill Tunnel
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 farther 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 long. It was the longest of the original tunnels on the 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. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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