|
Mill Creek (Lake Erie)
Mill Creek is a long tributary of Lake Erie in Erie County in the U.S. state of Pennsylvania. It flows from Millcreek Township through the city of Erie, into Presque Isle Bay. Much of the creek in the city was channeled into the Mill Creek Tube, which was constructed after Mill Creek's disastrous flood struck the city in 1915. Course Mill Creek begins in extreme eastern Millcreek Township and travels westward until it is joined by a couple of smaller tributary streams. From there, it roughly follows Pennsylvania Route 505 (Glenwood Park Avenue) northward until the creek is diverted underground. The creek passes through the middle of the Erie Zoo, where several bridges span the creek. One of the bridges is designed to act as a " drift catcher", preventing large debris from entering the tube further downstream.Boyd, p. 2B. The drift catcher is also used by the zoo's train to cross over Mill Creek. At 30th Street, Mill Creek is diverted underground, for over through th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania
Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio and the Ohio River to its west, Lake Erie and New York (state), New York to its north, the Delaware River and New Jersey to its east, and the Provinces and territories of Canada, Canadian province of Ontario to its northwest via Lake Erie. Pennsylvania's most populous city is Philadelphia. Pennsylvania was founded in 1681 through a royal land grant to William Penn, the son of William Penn (Royal Navy officer), the state's namesake. Before that, between 1638 and 1655, a southeast portion of the state was part of New Sweden, a Swedish Empire, Swedish colony. Established as a haven for religious and political tolerance, the B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegheny County, Pennsylvania
Allegheny County ( ) is a County (United States), county in Pennsylvania, United States. As of the 2020 census, the population was 1,250,578, making it the List of counties in Pennsylvania, state's second-most populous county, after Philadelphia County, Pennsylvania, Philadelphia County. Its county seat and most populous city is Pittsburgh, Pennsylvania's second most populous city. The county is part of the Greater Pittsburgh region of the commonwealth, and is the center of the Pittsburgh Media Market, Pittsburgh media market. Allegheny was the first county in Pennsylvania to be given a Native Americans in the United States, Native American name. It was named after the Lenape word for the Allegheny River. The meaning of "Allegheny" is uncertain. It is usually said to mean "fine river". Some historians state that the name may come from a Lenape account of an ancient mythical tribe called ''"Allegewi"'', who lived along the river before being taken over by the Lenape. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cement
A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel ( aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Concrete is the most widely used material in existence and is behind only water as the planet's most-consumed resource. Cements used in construction are usually inorganic, often lime- or calcium silicate-based, and are either hydraulic or less commonly non-hydraulic, depending on the ability of the cement to set in the presence of water (see hydraulic and non-hydraulic lime plaster). Hydraulic cements (e.g., Portland cement) set and become adhesive through a chemical reaction between the dry ingredients and water. The chemical reaction results in mineral hydrates that are not very water-soluble. This allows setting in wet conditions or u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrel (unit)
A barrel is one of several units of volume applied in various contexts; there are dry barrels, fluid barrels (such as the U.K. beer barrel and U.S. beer barrel), oil barrels, and so forth. For historical reasons, the volumes of some barrel units are roughly double the volumes of others; volumes in common use range approximately from . In many connections, the term is used almost interchangeably with ''barrel''. Since medieval times, the term as a unit of measure has had various meanings throughout Europe, ranging from about 100 litres to about 1,000 litres. The name was derived in medieval times from the French , of unknown origin, but still in use, both in French and as derivations in many other languages, such as Italian, Polish, and Spanish. In most countries, such usage is obsolescent, having been superseded by SI units. As a result, the meaning of corresponding words and related concepts (vat, cask, keg etc.) in other languages often refers to a physical co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinforced Concrete
Reinforced concrete, also called ferroconcrete or ferro-concrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel reinforcing bars (known as rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials. In corrosion engineering terms, when designed correctly, the alkalinity of the concrete protects the steel rebar from corrosion. Description Reinforcing schemes are generally designed to resist tensile stresses in particular regions of the concrete that might cause unacceptable cracking and/or structural failure. Modern reinforced concrete can contain varied reinforcing materials made o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mill Creek Tube
Mill Creek is a long tributary of Lake Erie in Erie County in the U.S. state of Pennsylvania. It flows from Millcreek Township through the city of Erie, into Presque Isle Bay. Much of the creek in the city was channeled into the Mill Creek Tube, which was constructed after Mill Creek's disastrous flood struck the city in 1915. Course Mill Creek begins in extreme eastern Millcreek Township and travels westward until it is joined by a couple of smaller tributary streams. From there, it roughly follows Pennsylvania Route 505 (Glenwood Park Avenue) northward until the creek is diverted underground. The creek passes through the middle of the Erie Zoo, where several bridges span the creek. One of the bridges is designed to act as a " drift catcher", preventing large debris from entering the tube further downstream.Boyd, p. 2B. The drift catcher is also used by the zoo's train to cross over Mill Creek. At 30th Street, Mill Creek is diverted underground, for over through the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamite
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay), and Stabilizer (chemistry), stabilizers. It was invented by the Swedish people, Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany, and was patented in 1867. It rapidly gained wide-scale use as a more robust alternative to the traditional gun powder, black powder explosives. It allows the use of nitroglycerine's favorable explosive properties while greatly reducing its risk of accidental detonation. History Dynamite was invented by Swedish chemist Alfred Nobel in 1866 and was the first safely manageable explosive stronger than black powder. Alfred Nobel's father, Immanuel Nobel, was an industrialist, engineer, and inventor. He built bridges and buildings in Stockholm and founded Sweden's first rubber factory. His construction work inspired him to research new methods of blasting rock that were more effective than black powder. After some bad business deals in S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Block
A city block, residential block, urban block, or simply block is a central element of urban planning and urban design. In a city with a grid system, the block is the smallest group of buildings that is surrounded by streets. City blocks are the space for buildings within the street pattern of a city, and form the basic unit of a city's urban fabric. City blocks may be subdivided into any number of smaller land lots usually in private ownership, though in some cases, it may be other forms of tenure. City blocks are usually built-up to varying degrees and thus form the physical containers, or "streetwalls," of public spaces. Most cities are composed of a greater or lesser variety of sizes and shapes of an urban block. For example, many pre-industrial cores of cities in Europe, Asia, and the Middle East tend to have irregularly shaped street patterns and urban blocks, while cities based on grids have much more regular arrangements. By extension, the word "block" is an important in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an Bay, embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be ''on-stream reservoirs'', which are located on the original streambed of the downstream river and are filled by stream, creeks, rivers or rainwater that surface runoff, runs off the surrounding forested catchments, or ''off-stream reservoirs'', which receive water diversion, diverted water from a nearby stream or aqueduct (water supply), aq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culvert
A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe (fluid conveyance), pipe, reinforced concrete or other material. In the United Kingdom, the word can also be used for a longer artificially buried watercourse. Culverts are commonly used both as cross-drains to relieve drainage of ditches at the roadside, and to pass water under a road at natural drainage and stream crossings. When they are found beneath roads, they are frequently empty. A culvert may also be a bridge-like structure designed to allow vehicle or pedestrian traffic to cross over the waterway while allowing adequate passage for the water. Dry culverts are used to channel a fire hose beneath a noise barrier for the ease of firefighter, firefighting along a highway without the need or danger of placing hydrants along the roadway itself. Culverts come in many sizes and shapes including ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erie Times-News
The ''Erie Times-News'' is a daily morning newspaper in Erie, Pennsylvania. It is owned by Gannett. The beginning The newspaper was founded as the ''Erie Daily Times'' on April 12, 1888, by nine printers involved in a labor dispute at another newspaper. They each invested $25 to establish the Times Publishing Company, which was initially located in a cellar at the corner of 9th Street and State Street. John J. Mead Sr., one of the founders, eventually bought out his partners. The Mead family headed the newspaper until August 2003. The newspaper relocated to West 10th Street and Peach Street on April 12, 1924. One company, two newspapers The Times Publishing Company bought out the rival ''Erie Dispatch Herald'' in 1956 and co-located the two staffs in 1957 in the ''Dispatch Heralds building at East 12th and French streets. On January 7, 1957, the ''Erie Morning News'' made its debut. The Times Publishing Company built a new plant, housing a Goss Metro offset press, at 205 West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outbuilding
An outbuilding, sometimes called an accessory building or a dependency, is a building that is part of a residential or agricultural complex but detached from the main sleeping and eating areas. Outbuildings are generally used for some practical purpose, rather than decoration or purely for leisure (such as a pool house or a tree house), although luxury greenhouses such as orangeries or ferneries may also be considered outbuildings. This article is limited to buildings that would typically serve one property, separate from community-scale structures such as gristmills, water towers, fire towers, or parish granaries. Outbuildings are typically detached from the main structure, so places like wine cellars, root cellars and cheese caves may or may not be termed ''outbuildings'' depending on their placement. A buttery, on the other hand, is never an outbuilding because by definition is it is integrated into the main structure. Separating these work spaces from the main home "r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
