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Thornton Quarry
Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles (2.5 km) long, 0.5 miles (1 km) wide, and 450 feet (137.16 m) deep at its deepest point. Gallagher Asphalt Corporation has been operating on the grounds of the quarry since 1928. A dryland dike carries Interstate 80/Interstate 294/Tri-State Tollway over the quarry. As part of the Chicago Deep Tunnel project, both Thornton Quarry and McCook Quarry will serve as reservoirs to reduce the backflow of stormwater and sewage from Chicago area rivers into Lake Michigan. Thornton Transitional Reservoir contributes a capacity to the system, and is expected to contribute when the system is completed in 2014. It is estimated that the reservoir will help protect 500,000 people who live in the surrounding 14 suburbs it serves, and will save the city around $40 million worth of damages each year. The quarry contains Silurian reef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thornton Quarry
Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles (2.5 km) long, 0.5 miles (1 km) wide, and 450 feet (137.16 m) deep at its deepest point. Gallagher Asphalt Corporation has been operating on the grounds of the quarry since 1928. A dryland dike carries Interstate 80/Interstate 294/Tri-State Tollway over the quarry. As part of the Chicago Deep Tunnel project, both Thornton Quarry and McCook Quarry will serve as reservoirs to reduce the backflow of stormwater and sewage from Chicago area rivers into Lake Michigan. Thornton Transitional Reservoir contributes a capacity to the system, and is expected to contribute when the system is completed in 2014. It is estimated that the reservoir will help protect 500,000 people who live in the surrounding 14 suburbs it serves, and will save the city around $40 million worth of damages each year. The quarry contains Silurian reef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel And Reservoir Plan
The Tunnel and Reservoir Plan (abbreviated TARP and more commonly known as the Deep Tunnel Project or the Chicago Deep Tunnel) is a large civil engineering project that aims to reduce flooding in the metropolitan Chicago area, and to reduce the harmful effects of flushing raw sewage into Lake Michigan by diverting storm water and sewage into temporary holding reservoirs. The megaproject is one of the largest civil engineering projects ever undertaken in terms of scope, cost and timeframe. Commissioned in the mid-1970s, the project is managed by the Metropolitan Water Reclamation District of Greater Chicago. Completion of the system is not anticipated until 2029, but substantial portions of the system have already opened and are currently operational. Across 30 years of construction, over $3 billion has been spent on the project. History 19th century The Deep Tunnel Project is the latest in a series of civil engineering projects dating back to 1834. Many of the problems experienced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Illinois
The geology of Illinois includes extensive deposits of marine sedimentary rocks from the Palaeozoic, as well as relatively minor contributions from the Mesozoic and Cenozoic. Ice age glaciation left a wealth of glacial topographic features throughout the state. Precambrian Geology Precambrian rocks of Illinois are deeply buried by 2000–13000 feet (610–3960 m) of later sediments. Drilling has revealed these rocks to be primarily intrusive felsic igneous rocks, though some extrusive felsic rocks have also been recovered from boreholes. Precambrian rocks of Illinois are highly faulted; tectonic extension and related thermal subsidence have led to the formation of two major sedimentary basins. These basins, termed the Illinois Basin and Michigan Basin, allowed for extensive deposition of sedimentary rock during the Palaeozoic Era. The Illinois Basin is a northwest-southeast asymmetrical structural basin that is filled with more than 4000 meters of Paleozoic sedimentary rocks. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarries In The United States
A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to reduce their environmental impact. The word ''quarry'' can also include the underground quarrying for stone, such as Bath stone. Types of rock Types of rock extracted from quarries include: *Chalk *China clay *Cinder *Clay *Coal *Construction aggregate (sand and gravel) *Coquina *Diabase *Gabbro *Granite *Gritstone *Gypsum *Limestone *Marble *Ores *Phosphate rock *Quartz *Sandstone *Slate *Travertine Stone quarry Stone quarry is an outdated term for mining construction rocks (limestone, marble, granite, sandstone, etc.). There are open types (called quarries, or open-pit mines) and closed types ( mines and caves). For thousands of years, only hand tools had been used in quarries. In the 18th century, the use of drilling and blasting operations was ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metropolitan Water Reclamation District Of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago (MWRD), originally known as the Sanitary District of Chicago, is a special-purpose district chartered to operate in Cook County, Illinois since 1889. Although its name may imply otherwise, it is not a part of the City of Chicago's local government but is created by Illinois state government with an elected Board of Commissioners. The MWRD's main purposes are the reclamation and treatment of wastewater and flood water abatement in Cook County, Illinois, Cook County to protect the health and safety of citizens and of area waterways. In 1900, the District notably reversed the flow of the Chicago River, and it is currently involved in the large multi-decade construction of the "Deep Tunnel", Tunnel and Reservoir Plan (TARP). Organization and Administration The MWRD is governed by a nine-member Board of Commissioners elected at large from throughout Cook County, Illinois for six-year terms. Terms are staggered so that thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gurdon Saltonstall Hubbard
Gurdon Saltonstall Hubbard (August 22, 1802 – September 14, 1886) was an American fur trader, insurance underwriter, and land speculator. He was influential in the development of the city of Chicago and responsible for its growth during the 19th century. First arriving in Chicago in 1818, he settled in the area in the late 1820s. He became one of the most prominent residents of the town and was one of its first trustees in 1833. He went on to build Chicago's first stockyard and help foment a land boom for Chicago in the East. In addition to his work in developing and promoting Chicago, Hubbard was known for his athletic prowess. Hubbard Street in Chicago is named for him, as is Hubbard High School (Chicago), Hubbard High School. Early life Gurdon Saltonstall Hubbard was born in Windsor, Vermont, on August 22, 1802. His parents were Abigail Sage and Elizur Hubbard. Sage was a daughter of the general Comfort Sage and his wife Sarah Hamlin, and was from Middletown, Connecticut. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan Basin
The Michigan Basin is a geologic basin centered on the Lower Peninsula of the U.S. state of Michigan. The feature is represented by a nearly circular pattern of geologic sedimentary strata in the area with a nearly uniform structural dip toward the center of the peninsula. Geology The basin is centered in Gladwin County where the Precambrian basement rocks are deep. Around the margins, such as under Mackinaw City, Michigan, the Precambrian surface is around below the surface. This contour on the bedrock clips the northern part of the Lower Peninsula and continues under Lake Michigan along the west. It crosses the southern counties of Michigan and continues to the north beneath Lake Huron. On the north in the Canadian Shield, which includes the western part of Michigan's Upper Peninsula, Precambrian rocks are exposed at the surface. The eastern margins of Wisconsin along Green Bay are along the margins of the basin, while Precambrian rocks crop out to the west in central Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out. One important event in this period was the initial establishment of terrestrial life in what is known as the Silurian-Devonian Terrestrial Revolution: vascular plants emerged from more primitive land plants, dikaryan fungi started expanding and diversifying along with glomeromycotan fungi, and three groups of arthropods (myriapods, arachnids and hexapods) became fully terrestrialized. A significant evolutionary milestone during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thornton Quarry2
Thornton or ''variant'', may refer to: People *Thornton (surname), people with the surname ''Thornton'' *Justice Thornton (other), judges named "Thornton" *Thornton Wilder, American playwright Places Australia *Thornton, New South Wales * Thornton, Queensland, a locality in the Lockyer Valley Region * Thornton, South Australia, a former town *Thornton, Victoria Canada *Thornton, Ontario New Zealand *Thornton, Bay of Plenty, settlement in the Bay of Plenty * Thornton, Waikato, suburb of Hamilton * Thornton Bay, settlement on the Coromandel Peninsula South Africa *Thornton, Cape Town United Kingdom * Thornton, Angus, a location *Thornton, Buckinghamshire *Thornton, East Riding of Yorkshire *Thornton, Fife *Thornton, Lancashire *Thornton, Leicestershire *Thornton, Lincolnshire *Thornton, Merseyside * Thornton, Northumberland, a location *Thornton, Middlesbrough, North Yorkshire *Thornton, Pembrokeshire *Thornton, West Yorkshire *Thornton Abbey, Lincolnshire *Tho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construction Aggregate
Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt; the aggregate serves as reinforcement to add strength to the overall composite material. Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage applications such as foundation and French drains, septic drain fields, retaining wall drains, and roadside edge drains. Aggregates are also used as base material under foundations, roads, and railroads. In other words, aggregates are used as a stable foundation or road/rail base with predictable, uniform properties (e.g. to help prevent differential settling under the road or building), or as a low-cost exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tri-State Tollway
The Tri-State Tollway is a toll highway in the northeastern part of the U.S. state of Illinois. It follows: *Interstate 80 from I-94/I-294/IL 394 in South Holland to I-294 in Hazel Crest; * Interstate 294 from I-80/I-94/IL 394 in South Holland to I-94 in Northbrook; and *Interstate 94 Interstate 94 (I-94) is an east–west Interstate Highway connecting the Great Lakes and northern Great Plains regions of the United States. Its western terminus is just east of Billings, Montana, at a junction with I-90; its eastern ter ... from I-294 in Northbrook to US 41 in Newport Township. {{roadindex Transportation in Lake County, Illinois Transportation in Cook County, Illinois Interstate 94 Interstate 294 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 294
Interstate 294 (I-294) is a tolled auxiliary Interstate Highway in northeastern Illinois. It forms the southern portion of the Tri-State Tollway in Illinois. I-294 runs from South Holland at I-80/ I-94 and Illinois Route 394 (IL 394) to Northbrook at I-94. I-294 is long; are shared with I-80. It serves as a bypass around the city of Chicago. I-294 is also the longest auxiliary route of I-94, at longer than I-494 in Minneapolis–Saint Paul. In addition, the tollway is the longest auxiliary Interstate Highway in Illinois, and it intersects the most primary Interstate Highways at six. Route description I-294 begins at the interchange between I-94, I-80, and IL 394 in Lansing. I-94 splits off toward Chicago while I-80/I-294 heads west as an eight-lane tollway and crosses above a railroad track and Thorn Creek in Thornton. The highway crosses under the Chicago Southland Lincoln Oasis, Chicago Road, another railroad track, and State Street through residential areas. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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