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Francis Scott Key Bridge Replacement
The Francis Scott Key Bridge replacement is a project to replace the Francis Scott Key Bridge (Baltimore), Francis Scott Key Bridge in greater Baltimore, Baltimore, Maryland, United States. The Key bridge Francis Scott Key Bridge collapse, collapsed on March 26, 2024, after a MV Dali, container ship struck one of its Bridge pier, piers. The southernmost crossing of the lower Patapsco River, the bridge was part of the Interstate Highway System and a major piece of the region's transportation infrastructure: a well-trafficked part of the Baltimore Beltway (Interstate 695 (Maryland), Interstate 695 or I-695) linking Dundalk, Maryland, Dundalk in Baltimore County, Maryland, Baltimore County and the Hawkins Point, Baltimore, Hawkins Point neighborhood of Baltimore. It crossed the deep-water shipping channel leading to the Port of Baltimore, one of the country's busiest ports. Officials at the Maryland Department of Transportation have announced plans to replace the bridge by the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patapsco River
The Patapsco River mainstem is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed April 1, 2011 river in central Maryland that flows into the Chesapeake Bay. The river's tidal portion forms the harbor for the city of Baltimore. With its South Branch, the Patapsco forms the northern border of Howard County, Maryland. The name "Patapsco" is derived from the Algonquian ''pota-psk-ut'', which translates to "backwater" or "tide covered with froth." History Captain John Smith was the first European to explore the river noting it on his 1612 map as the Bolus River. The "Red river", was named after the clay color, and is considered the "old Bolus", as other branches were also labeled Bolus on maps. As the river was not navigable beyond Elkridge, it was not a major path of commerce with only one ship listed as serving the northern branch, and four others operating around the mouth in 1723. The Patapsco River is referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Of Baltimore
Helen Delich Bentley Port of Baltimore is a shipping port along the tidal basins of the three branches of the Patapsco River in Baltimore, Maryland on the upper northwest shore of the Chesapeake Bay. It is the nation's largest port facilities for specialized cargo (roll-on/roll-off ships) and passenger facilities. It is operated by the Maryland Port Administration (MPA), a unit of the Maryland Department of Transportation. During a 2006 celebration of the port's 300th birthday, the port was renamed in honor of Helen Delich Bentley (1923–2016), a former longtime U.S. Representative (Congresswoman) to the United States Congress (1985–1995) from Baltimore. She was also a former maritime reporter/editor for ''The Baltimore Sun,'' local major daily newspaper. History In 1608, Captain John Smith traveled 170 miles from Jamestown (established the previous year) exploring the shores, rivers, creeks, and streams to the upper Chesapeake Bay towards the Susquehanna River, leading ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highway Trust Fund
The Highway Trust Fund is a transportation fund in the United States which receives money from a federal fuel tax of 18.4 cents per gallon on gasoline and 24.4 cents per gallon of diesel fuel and related excise taxes. It currently has two accounts, the Highway Account funding road construction and other surface transportation projects, and a smaller Mass Transit Account supporting mass transit. Separate from the Highway Trust Fund is the Leaking Underground Storage Tank Trust Fund, which receives an additional 0.1 cents per gallon on gasoline and diesel, making the total amount of tax collected 18.5 cents per gallon on gasoline and 24.5 cents per gallon on diesel fuel. The Highway Trust Fund was established in 1956 to finance the United States Interstate Highway System and certain other roads. The Mass Transit Account was created in 1982. The federal tax on motor fuels yielded $28.2 billion in 2006. History Prior to the Federal Aid Highway Act of 1956 and the establishment of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Highway Administration
The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program and the Federal Lands Highway Program. Its role had previously been performed by the Office of Road Inquiry, Office of Public Roads and the Bureau of Public Roads. History Background The organization has several predecessor organizations and complicated history. The Office of Road Inquiry (ORI) was founded in 1893. In 1905, that organization's name was changed to the Office of Public Roads (OPR) which became a division of the United States Department of Agriculture. The name was changed again to the Bureau of Public Roads in 1915 and to the Public Roads Administration (PRA) in 1939. It was then shifted to the Federal Works Agency which was abolished in 1949 when its name reverted to Bureau of Public Roads under the Department of Comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Congress
The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washington, D.C. Senators and representatives are chosen through direct election, though vacancies in the Senate may be filled by a governor's appointment. Congress has 535 voting members: 100 senators and 435 representatives. The U.S. vice president The vice president of the United States (VPOTUS) is the second-highest officer in the executive branch of the U.S. federal government, after the president of the United States, and ranks first in the presidential line of succession. The vice pr ... has a vote in the Senate only when senators are evenly divided. The House of Representatives has six non-voting members. The sitting of a Congress is for a two-year term, at present, beginning every other January. Elections are held every even-n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Longest Continuous Truss Bridge Spans
This list of continuous bridge spans ranks the world's continuous truss bridges in two First by the length of main span (the longest length of unsupported roadway) and second by the total length of continuous truss spans. This list includes bridges that act primarily as a continuous truss. These bridges may appear to be—or may incorporate elements of—a different design. For example, the list includes the Francis Scott Key Bridge (Baltimore), Francis Scott Key Bridge which incorporates an arch bridge, arch shape into the design, but is continuous across multiple spans. The Key Bridge acts first as a continuous truss bridge and secondarily as an arch bridge. This list does not include cantilever bridges. Only bridges that are currently in use are included in the rankings. Bridges currently being planned, designed, or constructed and bridges that have been demolished are noted separately. List ranked by length of main span The length of main span is the most common method of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Truss Bridge
A continuous truss bridge is a truss bridge which extends without hinges or joints across three or more supports. A continuous truss bridge may use less material than a series of simple trusses because a continuous truss distributes live loads across all the spans; in a series of simple trusses, each truss must be capable of supporting the entire load. Although some continuous truss bridges resemble cantilever bridges and may be constructed using cantilever techniques, there are important differences between the two forms. Cantilever bridges need not connect rigidly mid-span, as the cantilever arms are self-supporting. Although some cantilever bridges appear continuous due to decorative trusswork at the joints, these bridges will remain standing if the connections between the cantilevers are broken, or if the suspended span (if any) is removed. Conversely, continuous truss bridges rely on rigid truss connections throughout the structure for stability. Severing a continuous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dangerous Goods
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, pathogenic, or allergenic. Also included are physical conditions such as compressed gases and liquids or hot materials, including all goods containing such materials or chemicals, or may have other characteristics that render them hazardous in specific circumstances. Dangerous goods are ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort McHenry Tunnel
The Fort McHenry Tunnel is a four-tube, bi-directional tunnel that carries traffic on Interstate 95 (I-95) underneath the Baltimore Harbor. The lowest point in the Interstate System under water, the tunnel is named for nearby Fort McHenry. The tunnel was constructed from May 1980 to November 1985, at a cost of about $750 million. At the time of its opening on November 23, 1985, it was the most expensive underwater tunnel project in the United States, but that figure has since been surpassed by the Big Dig project in Boston.DCRoads.net"Fort McHenry Tunnel: Historic Overview" Accessed 2011-07-11. The tunnel's annual traffic in 2009 was 43.4 million vehicles. , the toll rate for cars is $4.00 cash or $3.00 E-ZPass, paid in both directions. Vehicles with more than two axles pay additional amounts, up to $30.00 for six axles. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore Harbor Tunnel
The Baltimore Harbor Tunnel is a pair of two-lane road tunnels carrying Interstate 895—the Harbor Tunnel Thruway—under the Patapsco River southeast of downtown Baltimore, Maryland. Description The pair of tunnels is long, stretching from the south shore of the Patapsco River to the north shore near Dundalk. Each tunnel is wide and high, and accommodates two lanes in each direction. The maximum speed within the tunnel is . Two-way traffic may occur in either tunnel for overnight roadwork or during emergencies that close down one of the tunnels. The Tunnel has lane control signals to control which lanes are open,closed or as contra-flow traffic. Both portals have ventilation buildings, with a total of 32 fans in place to replace the air within the tunnels, which is drawn in through the tunnel floors and exhausted through the tunnel ceilings. The tubes themselves range from a depth of below ground to below ground. As of July 1, 2015, the toll rate for cars is $ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll Bridge
A toll bridge is a bridge where a monetary charge (or '' toll'') is required to pass over. Generally the private or public owner, builder and maintainer of the bridge uses the toll to recoup their investment, in much the same way as a toll road. History The practice of collecting tolls on bridges harks back to the days of ferry crossings where people paid a fee to be ferried across stretches of water. As boats became impractical to carry large loads, ferry operators looked for new sources of revenue. Having built a bridge, they hoped to recoup their investment by charging tolls for people, animals, vehicles, and goods to cross it. The original London Bridge across the river Thames opened as a toll bridge, but an accumulation of funds by the charitable trust that operated the bridge ( Bridge House Estates) saw that the charges were dropped. Using interest on its capital assets, the trust now owns and runs all seven central London bridges at no cost to taxpayers or users. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
