Misplaced Pages

#355644

82-682: Standard Steel Propeller had been formed in 1918 in Pittsburgh , Pennsylvania, and Hamilton Aero Manufacturing had been formed in 1920 in Milwaukee , Wisconsin, by Thomas F. Hamilton . Charles Lindbergh 's Spirit of St. Louis used a propeller made by Standard Steel Propeller Company in his historic solo crossing of the Atlantic Ocean. The two companies were merged in 1929 by the United Aircraft and Transport Corporation . In

164-535: A C grade, and improving from the 46th to 54th most polluted by ozone smog. According to daily ozone air quality data provided by the EPA, from 2021 to 2024, Pittsburgh had good or moderate air quality most of the time. Then-Allegheny County executive Rich Fitzgerald said in December 2023 that they’d seen an "80 % drop in hazardous air pollutants" and that they made EPA attainment at all eight county air monitors for

246-808: A bit of a detour northeast 10 miles south of Pittsburgh to approach Pittsburgh from the southeast and its confluence with the Allegheny River to form the Forks of the Ohio at "The Point" of Point State Park in Downtown Pittsburgh . Prior to early Pleistocene regional glaciation, more than 780,000 years ago, the ancestral Monongahela River (a.k.a. the Pittsburgh River) flowed northward from present-day north-central West Virginia, across western Pennsylvania and northwestern Ohio, and into

328-489: A decrease in city population, even as the metropolitan area population increased again. During the late 2000s recession , Pittsburgh was economically strong, adding jobs when most cities were losing them. It was one of the few cities in the United States to see housing property values rise. Between 2006 and 2011, the Pittsburgh metropolitan statistical area (MSA) experienced over 10% appreciation in housing prices,

410-613: A free state after the Revolution, enslaved African Americans sought freedom here through escape as refugees from the South, or occasionally fleeing from travelers they were serving who stayed in the city. There were active stations of the Underground Railroad in the city, and numerous refugees were documented as getting help from station agents and African-American workers in city hotels. The Drennen Slave Girl walked out of

492-685: A growing residential segment. Most significantly, the Pittsburgh Cultural Trust is embarking on RiverParc, a four-block mixed-use "green" community, featuring 700 residential units and multiple towers of between 20 and 30 stories. The Firstside portion of Downtown borders the Monongahela River, the historic Mon Wharf and hosts the distinctive PPG Place Gothic-style glass skyscraper complex. New condo towers have been constructed and historic office towers are converted to residential use, increasing 24-hour residents. Downtown

574-539: A quarter of neighborhood names make reference to "hills," "heights," or similar features. The steps of Pittsburgh consist of 800 sets of outdoor public stairways with 44,645 treads and 24,090 vertical feet. They include hundreds of streets composed entirely of stairs, and many other steep streets with stairs for sidewalks. Many provide vistas of the Pittsburgh area while attracting hikers and fitness walkers. Bike and walking trails have been built to border many of

656-733: A variant spelling.) The USGS name for the river is the Monongahela River; there have been numerous alternate names, alternate spellings and misspellings in historical texts. The Monongahela is formed by the confluence of the West Fork River and its "east fork"—the Tygart Valley River —at Fairmont in north central West Virginia. From there it flows northeasterly to cross the Pennsylvania border just west of north Cheat Lake on its Cheat River tributary. Then it flows northerly across southwestern Pennsylvania, taking

738-578: Is 39.61 inches (1,006 mm) and precipitation is greatest in May while least in October; annual precipitation has historically ranged from 22.65 in (575 mm) in 1930 to 57.83 in (1,469 mm) in 2018. On average, December and January have the greatest number of precipitation days. Snowfall averages 44.1 inches (112 cm) per season, but has historically ranged from 8.8 in (22 cm) in 1918–19 to 80 in (200 cm) in 1950–51. There

820-540: Is a city in and the county seat of Allegheny County, Pennsylvania , United States. It is the second-most populous city in Pennsylvania , after Philadelphia , and the 68th-most populous city in the U.S., with a population of 302,971 as of the 2020 census . The city is located in southwestern Pennsylvania at the confluence of the Allegheny River and the Monongahela River , which combine to form

902-404: Is additionally where Jehovah's Witnesses traces its earliest origins, and was the host of the 2009 G20 Pittsburgh summit . Pittsburgh was named in 1758, by General John Forbes , in honor of British statesman William Pitt, 1st Earl of Chatham . As Forbes was a Scotsman , he probably pronounced the name / ˈ p ɪ t s b ər ə / PITS -bər-ə (similar to Edinburgh ). Pittsburgh

SECTION 10

#1732779578356

984-486: Is an average of 59 clear days and 103 partly cloudy days per year, while 203 days are cloudy. In terms of annual percent-average possible sunshine received, Pittsburgh (45%) is similar to Seattle (49%). The American Lung Association's (ALA) 2023 "State of the Air" report (which included data from 2019 to 2021) showed air quality in Pittsburgh improving. The city received a passing grade for ozone pollution, going from an F to

1066-460: Is home to large medical providers, including the University of Pittsburgh Medical Center , Allegheny Health Network , and 68 colleges and universities , including research and development leaders Carnegie Mellon University and the University of Pittsburgh . The area has served as the federal agency headquarters for cyber defense , software engineering , robotics , energy research , and

1148-413: Is home to the University of Pittsburgh , Carnegie Mellon University , Carlow University , Chatham University , The Carnegie Institute's Museums of Art and Natural History , Phipps Conservatory , and Soldiers and Sailors Memorial Hall . It is also home to many parks and public spaces including Mellon Park , Westinghouse Park , Schenley Park , Frick Park , The Frick Pittsburgh , Bakery Square , and

1230-635: Is known as "the Steel City" for its dominant role in the history of the U.S. steel industry . It developed as a vital link of the Atlantic coast and Midwest , as the mineral-rich Allegheny Mountains led to the region being contested by the French and British Empires, Virginians , Whiskey Rebels , and Civil War raiders . For part of the 20th century, Pittsburgh was behind only New York City and Chicago in corporate headquarters employment; it had

1312-582: Is navigable its entire length with a series of locks and dams that maintain a minimum depth of 9 feet (2.7 m) to accommodate coal-laden barges. All dams are operated by the Pittsburgh District Army Corps of Engineers. In 2006, the navigation system, operated by the U.S. Army Corps of Engineers , had nine dam-locks along 128.7 miles (207.1 km) of waterway. The locks overcame a change in elevation of about 147 feet (44.8 m). The locks and dam at Elizabeth will be removed by

1394-574: Is now known as Washington's Landing, formerly Herr's Island , in what is now the Lawrenceville neighborhood. The first known European to enter the region was the French explorer Robert de La Salle from Quebec during his 1669 expedition down the Ohio River . European pioneers, primarily Dutch, followed in the early 18th century. Michael Bezallion was the first to describe the forks of

1476-547: Is of a very rugged plateau type which allows streams to gather sufficient water volume before they fall off the plateau and create challenging rapids. Some of the best known specific stream locations for this include: The Monongahela River valley was the site of a famous battle that was one of the first in the French and Indian War —the Braddock Expedition (May–July 1755). It resulted in a sharp defeat for two thousand British and Colonial forces against those of

1558-679: Is primarily composed of residential neighborhoods and is noteworthy for its well-constructed and architecturally interesting homes. Many buildings date from the 19th century and are constructed of brick or stone and adorned with decorative woodwork, ceramic tile, slate roofs and stained glass. The North Side is also home to attractions such as Acrisure Stadium , PNC Park , Kamin Science Center , National Aviary , Andy Warhol Museum , Mattress Factory art museum, Children's Museum of Pittsburgh , Randyland , Penn Brewery , Allegheny Observatory , and Allegheny General Hospital . The South Side

1640-573: Is referred to as "the Point." The city extends east to include the Oakland and Shadyside sections, which are home to the University of Pittsburgh , Carnegie Mellon University , Chatham University , Carnegie Museum and Library , and many other educational, medical, and cultural institutions. The southern, western, and northern areas of the city are primarily residential. Many Pittsburgh neighborhoods are steeply sloped with two-lane roads. More than

1722-513: Is served by the Port Authority 's light rail system and multiple bridges leading north and south. It is also home to Point Park University and Duquesne University which borders Uptown . The North Side is home to various neighborhoods in transition. The area was once known as Allegheny City and operated as its own independent city until 1907, when it was merged with Pittsburgh despite great protest from its citizens. The North Side

SECTION 20

#1732779578356

1804-623: Is water. The 80th meridian west passes directly through the city's downtown. The city is on the Allegheny Plateau , within the ecoregion of the Western Allegheny Plateau . The Downtown area (also known as the Golden Triangle) sits where the Allegheny River flows from the northeast and the Monongahela River from the southeast to form the Ohio River . The convergence is at Point State Park and

1886-582: The Allegheny Mountains . The Great Fire of Pittsburgh destroyed over a thousand buildings in 1845. The city rebuilt with the aid of Irish immigrants who came to escape the Great Famine . By 1857, Pittsburgh's 1,000 factories were consuming 22 million coal bushels yearly. Coal mining and iron manufacturing attracted waves of European immigrants to the area, with the most coming from Germany . Because Pennsylvania had been established as

1968-477: The Allegheny Plateau in north-central West Virginia and Southwestern Pennsylvania . The river flows from the confluence of its west and east forks in north-central West Virginia northeasterly into southwestern Pennsylvania, then northerly to Pittsburgh and its confluence with the Allegheny River to form the Ohio River . The river includes a series of locks and dams that makes it navigable. The Unami word Monongahela means "falling banks", in reference to

2050-786: The Edgar Thomson Steel Works in North Braddock, Pennsylvania , which evolved into the Carnegie Steel Company . He adopted the Bessemer process to increase production. Manufacturing was key to growth of Pittsburgh and the surrounding region. Railroad lines were built into the city along both rivers, increasing transportation access to important markets. In 1901, J. P. Morgan and attorney Elbert H. Gary merged Carnegie Steel Company and several other companies into U.S. Steel . By 1910, Pittsburgh

2132-854: The Edgar Thomson Works in Braddock , the first steel works in the area, the Duquesne Works and the Jones and Laughlin steel works on the South Side of Pittsburgh. Only the Edgar Thomson works remain producing steel along the river. Despite the closure of many of the mills in the 1980s and 90s, the Monogahela is still an important waterway for industry. The Mon Valley Works of U.S. Steel operates three plants, including

2214-568: The French and their Native American allies. In 1817, the Pennsylvania legislature authorized the Monongahela Navigation Company to build 16 dams with bypass locks to create a river transportation system between Pittsburgh and the area that would later become West Virginia . Originally planned to run as far south as the Cheat River , the system was extended to Fairmont, and bituminous coal from West Virginia

2296-744: The Iroquois Confederacy , based in New York, had maintained control of much of the Ohio Valley as hunting grounds by right of conquest after defeating other tribes. By the terms of the 1768 Treaty of Fort Stanwix , the Penns were allowed to purchase the modern region from the Iroquois . A 1769 survey referenced the future city as the "Manor of Pittsburgh". Both the Colony of Virginia and

2378-487: The Köppen climate classification , Pittsburgh falls within either a hot-summer humid continental climate ( Dfa ) if the 0 °C (32 °F) isotherm is used or a humid subtropical climate ( Cfa ) if the −3 °C (27 °F) isotherm is used. Summers are hot and winters are moderately cold with wide variations in temperature. Despite this, it has one of the most pleasant summer climates between medium and large cities in

2460-495: The Ohio River . It anchors the Pittsburgh metropolitan area , which had a population of 2.457 million residents and is the largest metro area in both the Ohio Valley and Appalachia , the second-largest in Pennsylvania , and the 26th-largest in the U.S. Pittsburgh is the principal city of the greater Pittsburgh–Weirton–Steubenville combined statistical area which includes parts of Ohio and West Virginia . Pittsburgh

2542-746: The Pittsburgh Post-Gazette was started, and in 1787, the Pittsburgh Academy was chartered. Unrest during the Whiskey Rebellion of 1794 resulted in federal troops being sent to the area. By 1797, glass manufacture began, while the population grew to around 1,400. Settlers arrived after crossing the Appalachian Mountains or through the Great Lakes . Fort Pitt (now Pittsburgh) at the source of

Hamilton Standard - Misplaced Pages Continue

2624-468: The Pittsburgh Zoo and PPG Aquarium. The neighborhoods of Shadyside and Squirrel Hill are large, wealthy neighborhoods with some apartments and condos, and pedestrian-oriented shopping/business districts. Squirrel Hill is also known as the hub of Jewish life in Pittsburgh, home to approximately 20 synagogues. Oakland , heavily populated by undergraduate and graduate students, is home to most of

2706-523: The Province of Pennsylvania claimed the region under their colonial charters until 1780, when they agreed under a federal initiative to extend the Mason–Dixon line westward, placing Pittsburgh in Pennsylvania. On March 8, 1771, Bedford County, Pennsylvania was created to govern the frontier. On April 16, 1771, the city's first civilian local government was created as Pitt Township . William Teagarden

2788-618: The Saint Lawrence River watershed. One (or more) extensive ice sheet advance dammed the old north-flowing drainage and created a vast lake—known as Lake Monongahela —stretching from an unknown point north of present-day Beaver, Pennsylvania for ~200 miles (320 km) south to Weston, West Virginia . A river-lake with many narrow bays, its maximum water surface rose to 1,100 feet (340 m) above sea level. Over 200 feet (61 m) deep in places, its southwestward overflow gradually incised old drainage divides and contributed to

2870-445: The nuclear navy . In the private sector, Pittsburgh-based PNC is the nation's fifth-largest bank, and the city is home to ten Fortune 500 companies and seven of the largest 300 U.S. law firms. Other corporations that have regional headquarters and offices have helped Pittsburgh become the sixth-best area for U.S. job growth. Pittsburgh is sometimes called the "City of Bridges" for its 446 bridges . Its rich industrial history left

2952-587: The 1850 Fugitive Slave Act , as it required cooperation from law enforcement even in free states and increased penalties. From 1850 to 1860, the black population in Allegheny County dropped from 3,431 to 2,725 as people headed to more safety in Canada. The American Civil War boosted the city's economy with increased iron and armament demand by the Union. Andrew Carnegie began steel production in 1875 at

3034-572: The 1950s, evolved into electronically controlled fuel controls, and eventually, to full-authority digital electronic controls ( FADEC ) for jet engines, which are in use today on many commuter, airline, and military engine applications. Hamilton's environmental systems and early association with NASA were highlighted in the 1969 Apollo 11 Moon landing – supported by environmental control, fuel cell , and life support systems manufactured by Hamilton Standard. General Motors ' propeller business, which originated with its purchase of Aeroproducts in 1940,

3116-454: The Central, North Side/North Hills, South Side/South Hills, East End, and West End. Downtown Pittsburgh has 30 skyscrapers, nine of which top 500 feet (150 m). The U.S. Steel Tower is the tallest, at 841 ft (256 m). The Cultural District consists of a 14-block area of downtown along the Allegheny River . This district contains many theaters and arts venues and is home to

3198-621: The Edgar Thomson plant for basic steel marking, the Irvin plant for steel finishing, and the Clairton plant for coke production. Coal barges are a common sight on the river, and the railways which line either side are heavily used by freight. Other industries include power generation, chemicals, and recycling. Three ships in the United States Navy have been named Monongahela after the river. In October 1930, severe drought caused

3280-518: The Elder , while the settlement was named "Pittsborough". During Pontiac's War , a loose confederation of Native American tribes laid siege to Fort Pitt in 1763; the siege was eventually lifted after Colonel Henry Bouquet defeated a portion of the besieging force at the Battle of Bushy Run . Bouquet strengthened the defenses of Fort Pitt the next year. During this period, the powerful nations of

3362-568: The Monongahela House in 1850, apparently to freedom. The Merchant's Hotel was also a place where African-American workers would advise slaves the state was free and aid them in getting to nearby stations of the Underground Railroad. Sometimes refugee slaves from the South stayed in Pittsburgh, but other times they continued North, including into Canada. Many slaves left the city and county for Canada after Congress passed

Hamilton Standard - Misplaced Pages Continue

3444-522: The North American front of the Seven Years' War , began with the future Pittsburgh as its center. British General Edward Braddock was dispatched with Major George Washington as his aide to take Fort Duquesne. The British and colonial force were defeated at Braddock's Field . General John Forbes finally took the forks in 1758. He began construction on Fort Pitt , named after William Pitt

3526-728: The North Side, and the Golden Triangle are characterized by more density of housing, walking neighborhoods, and a more diverse, urban feel. Pittsburgh falls within the borders of the Northeastern United States as defined by multiple US Government agencies. Pittsburgh is the principal city of the Pittsburgh Combined Statistical Area , a combined statistical area defined by the U.S. Census Bureau . Pittsburgh falls within

3608-692: The Ohio River became the main base for settlers moving into the Northwest Territory . The federal government recognizes Pittsburgh as the starting point for the Lewis and Clark Expedition . Preparations began in Pittsburgh in 1803 when Meriwether Lewis purchased a keelboat that would later be used to ascend the Missouri River . The War of 1812 cut off the supply of British goods, stimulating American industry. By 1815, Pittsburgh

3690-770: The Ohio River. It falls 280 feet from its forks to its mouth, a stretch made navigable by locks. The mean depth is about 20 ft. In southwestern Pennsylvania, the Monongahela is met by two major tributaries : the Cheat River , which joins at Point Marion , and the Youghiogheny River , which joins at McKeesport . Major tributaries include: Becks Run , Big Sandy Creek , Buffalo Creek , Cheat River , Crooked Run , Deckers Creek , Dunkard Creek , Lick Run , Middle Fork River , Paw Paw Creek , Peters Creek , Streets Run , Turtle Creek , Tygart Valley River , West Fork River , Youghiogheny River . The river

3772-514: The Ohio headwaters was long inhabited by the Shawnee and several other settled groups of Native Americans . Shannopin's Town was an 18th-century Lenape (Delaware) town located roughly from where Penn Avenue is today, below the mouth of Two Mile Run, from 30th Street to 39th Street. According to George Croghan , the town was situated on the south bank of the Allegheny, nearly opposite what

3854-507: The Ohio in a 1717 manuscript, and later that year European fur traders established area posts and settlements. In 1749, French soldiers from Quebec launched an expedition to the forks to unite Canada with French Louisiana via the rivers. During 1753–1754, the British hastily built Fort Prince George before a larger French force drove them off. The French built Fort Duquesne based on LaSalle's 1669 claims. The French and Indian War ,

3936-430: The U.S. The city lies in the USDA plant hardiness zone 6b except along the rivers where the zone is 7a. The area has four distinct seasons: winters are cold and snowy, springs and falls are mild with moderate levels of sunshine, and summers are warm. As measured by percent possible sunshine, summer is by far the sunniest season, though annual sunshine is low among major US cities at well under 50%. The warmest month of

4018-523: The U.S. Army Corps of Engineers. Work will commence in 2024. Afterwards 30 miles of the river between Charleroi and Braddock will be free flowing. According to the EPA's Toxics Release Inventory for 2010, the Monongahela ranked as the 17th most polluted river in the nation. The primary polluters were Pennsylvania iron and steel mills. The upper drainage area of the river basin is renowned for its water sports/hobbies of whitewater kayaking (and in some cases whitewater rafting ) opportunities. The land here

4100-399: The air and the rivers. The "Renaissance II" project followed in 1977, focused on cultural and neighborhood development. The industrial base continued to expand through the 1970s, but beginning in the early 1980s both the area's steel and electronics industries imploded during national industrial restructuring. There were massive layoffs from mill and plant closures. In the later 20th century,

4182-425: The area shifted its economic base to education, tourism, and services, largely based on healthcare/medicine, finance, and high technology such as robotics. Although Pittsburgh successfully shifted its economy and remained viable, the city's population has never rebounded to its industrial-era highs. While 680,000 people lived in the city proper in 1950, a combination of suburbanization and economic turbulence resulted in

SECTION 50

#1732779578356

4264-409: The area with renowned cultural institutions, including the Carnegie Museums of Pittsburgh , Pittsburgh Parks Conservancy , Pittsburgh Zoo & Aquarium , Phipps Conservatory and Botanical Gardens , the National Aviary , and a diverse cultural district . The city's major league professional sports teams include the Pittsburgh Steelers , Pittsburgh Penguins , and Pittsburgh Pirates . Pittsburgh

4346-402: The borders of Appalachia as defined by the Appalachian Regional Commission , and has long been characterized as the "northern urban industrial anchor of Appalachia." In its post-industrial state, Pittsburgh has been characterized as the "Paris of Appalachia", recognizing the city's cultural, educational, healthcare, and technological resources, and is the largest city in Appalachia. Under

4428-406: The city's population. Pittsburgh also became a main destination of the African-American Great Migration from the rural South during the first half of the 20th century. Limited initially by discrimination, some 95% percent of the men became unskilled steel workers. During World War II , demand for steel increased and area mills operated 24 hours a day to produce 95 million tons of steel for

4510-486: The city's rivers and hollows. The Great Allegheny Passage and Chesapeake and Ohio Canal Towpath connect the city directly to downtown Washington, D.C. (some 335 miles [539 km] away) with a continuous bike/running trail. The city consists of the Downtown area, called the Golden Triangle, and four main areas surrounding it. These surrounding areas are subdivided into distinct neighborhoods (Pittsburgh has 90 neighborhoods). Relative to downtown, these areas are known as

4592-476: The community and various developers to create a master plan for a mixed-use development that included a riverfront park, office space, housing, health-care facilities, and indoor practice fields for the Pittsburgh Steelers and Pitt Panthers . Construction of the development began in 1998. The SouthSide Works has been open since 2005, featuring many stores, restaurants, offices, and the world headquarters for American Eagle Outfitters . The East End of Pittsburgh

4674-420: The dam-lock combinations were increased in size and reduced in number. Briefly linked to the Monongahela Navigation was the Youghiogheny Navigation, a slack water system of 18.5 miles (29.8 km) between McKeesport and West Newton . It had two dam-locks overcoming a change in elevation of about 27 feet (8.2 m). Opening in 1850, it was destroyed by a flood in 1865. During the 19th century and well into

4756-411: The downtown skyline, and numerous other residential neighborhoods such as Sheraden and Elliott . Many of Pittsburgh's patchwork of neighborhoods still retain ethnic characters reflecting the city's settlement history. These include: Several neighborhoods on the edges of the city are less urban, featuring tree-lined streets, yards and garages, with a more suburban character. Oakland, the South Side,

4838-478: The early 1930s, Frank W. Caldwell of Hamilton Standard led a team that developed a variable-pitch propeller, using hydraulic pressure and centrifugal force to change the angle of attack of the blades. Caldwell received the 1933 Collier Trophy for this advance in flight propulsion. Later advances included full-feathering and reversible propellers. Hamilton Standard was a division of United Aircraft Corporation (1934) along with Pratt & Whitney (engines). In

4920-549: The early 1950s Hamilton developed the technology to accurately meter fuel in jet engines, and its fuel controls were employed on Boeing 707s and Douglas DC-8s , as well as most other Pratt & Whitney jet engines. In 1952, Hamilton Standard opened its plant in Windsor Locks, Connecticut . In 1958, Hamilton's first environmental control system entered service on the Convair 880 . In 1968, Hamilton began delivering automatic, electronic systems for control of cabin pressure in aircraft. Hamilton's mechanical fuel controls, in use since

5002-408: The first time in 2020, and then also achieved that goal in 2021, 2022, and were on track for better results in 2023. Monongahela River The Monongahela River ( / m ə ˌ n ɒ ŋ ɡ ə ˈ h iː l ə / mə- NONG -gə- HEE -lə , /- ˈ h eɪ -/ -⁠ HAY - ), sometimes referred to locally as the Mon ( / m ɒ n / ), is a 130-mile-long (210 km) river on

SECTION 60

#1732779578356

5084-424: The geological development of the present-day upper Ohio River Valley . Via the Ohio River, the river is part of the Mississippi watershed which drains to the Gulf of Mexico on the Atlantic Ocean. The river's length is 130 miles, its drainage basin is 7,340 sq.mi. and the average 30-year discharge at Elizabeth, Pennsylvania, is 9,109 cfs. It falls 3,831 ft. in elevation from its highest source to its mouth on

5166-483: The geological instability of the river's banks. Moravian missionary David Zeisberger (1721–1808) gave this account of the naming: "In the Indian tongue the name of this river was Mechmenawungihilla (alternatively spelled Menawngihella ), which signifies a high bank, which is ever washed out and therefore collapses." The Lenape Language Project renders the word as Mënaonkihëla (pronounced [mənaoŋɡihəla] ), translated "where banks cave in or erode", from

5248-437: The highest appreciation of the largest 25 metropolitan statistical areas in the United States, with 22 of the largest 25 metropolitan statistical areas experiencing depreciations in housing values. In September 2009, the 2009 G20 Pittsburgh summit was held in Pittsburgh. Pittsburgh has an area of 58.3 square miles (151 km ), of which 55.6 square miles (144 km ) is land and 2.8 square miles (7.3 km ), or 4.75%,

5330-435: The most U.S. stockholders per capita. Deindustrialization in the late 20th century resulted in massive layoffs among blue-collar workers as steel and other heavy industries declined, coinciding with several Pittsburgh-based corporations moving out of the city. However, the city divested from steel and, since the 1990s, Pittsburgh has focused its energies on the healthcare, education, and technology industries. Pittsburgh

5412-431: The record cold daily maximum is −3 °F (−19 °C), which occurred three times, most recently the day of the all-time record low, while, conversely, the record warm daily minimum is 82 °F (28 °C) on July 1, 1901. Due to elevation and location on the windward side of the Appalachian Mountains, 100 °F (38 °C)+ readings are very rare, and were last seen on July 15, 1995. Average annual precipitation

5494-428: The river flow to drop below 10 cu ft/s (280 L/s), and in some places, it was possible to walk across the river bottom. The river was the site of a famous airplane crash that has become the subject of urban legends and conspiracy theories . Early on the morning of January 31, 1956, a B-25 bomber en route from Nellis Air Force Base in Nevada to Olmsted Air Force Base in Pennsylvania crashed into

5576-411: The river near the Glenwood Bridge in Homestead, Pennsylvania . The six crewmen survived the initial crash, but two of them succumbed in the cold water and drowned. Despite the relatively shallow water, the aircraft was never recovered and became known as the "ghost bomber". The Pittsburgh Post-Gazette published a graphical representation of the flight path and flight details in 1999. As of 2018,

5658-426: The twentieth, the Monongahela was heavily used by industry , and several U.S. Steel plants, including the Homestead Works, site of the Homestead Strike of 1892, were built along its banks. Following the killing of several workers in the course of the strike, anarchist Emma Goldman wrote: "Words had lost their meaning in the face of the innocent blood spilled on the banks of the Monongahela." Other mills included

5740-788: The universities, and the Petersen Events Center . The Strip District to the west along the Allegheny River is an open-air marketplace by day and a clubbing destination by night. Bloomfield is Pittsburgh's Little Italy and is known for its Italian restaurants and grocers. Lawrenceville is a revitalizing rowhouse neighborhood popular with artists and designers. The Hill District was home to photographer Charles Harris as well as various African-American jazz clubs. Other East End neighborhoods include Point Breeze , Regent Square , Highland Park , Homewood , Lincoln-Lemington-Belmar , Larimer , East Hills , East Liberty , Polish Hill , Hazelwood , Garfield, Morningside, and Stanton Heights. The West End includes Mt. Washington , with its famous view of

5822-422: The value of homes in the South Side had increased in value by about 10% annually for the 10 years leading up to 2014. East Carson Street has developed as one of the most vibrant areas of the city, packed with diverse shopping, ethnic eateries, vibrant nightlife, and live music venues. In 1993, the Urban Redevelopment Authority of Pittsburgh purchased the South Side Works steel mill property. It collaborated with

5904-499: The verbs mënaonkihële "the dirt caves off" (such as the bank of a river or creek, or in a landslide) and mënaonke (pronounced [mənaoŋɡe] ), "it has a loose bank" (where one might fall in). Monongalia County and the town of Monongah , both in West Virginia, are named for the river, as is the city of Monongahela in Pennsylvania. (The name "Monongalia" is either a Latinized adaptation of "Monongahela" or simply

5986-400: The war effort. This resulted in the highest levels of air pollution in the city's almost century of industry. The city's reputation as the "arsenal of democracy" was being overshadowed by James Parton 's 1868 observation of Pittsburgh being "hell with the lid off." Following World War II, the city launched a clean air and civic revitalization project known as the "Renaissance," cleaning up

6068-604: The year in Pittsburgh is July, with a 24-hour average of 73.2 °F (22.9 °C). Conditions are often humid, and combined with highs reaching 90 °F (32 °C) on an average 9.5 days a year, a considerable heat index arises. The coolest month is January, when the 24-hour average is 28.8 °F (−1.8 °C), and lows of 0 °F (−18 °C) or below can be expected on an average 2.6 nights per year. Officially, record temperatures range from −22 °F (−30 °C), on January 19, 1994 to 103 °F (39 °C), which occurred three times, most recently on July 16, 1988;

6150-916: Was acquired by Hamilton Standard in 1990. In 1999, the United Technologies Corporation acquired the Sundstrand Corporation and merged it with Hamilton to form Hamilton Sundstrand . Sundstrand brought a long history and portfolio of aerospace products to the newly named company. Hamilton Sundstrand continues to provide aerospace components and systems to most of the world's aircraft manufacturers, including Boeing , Airbus , Bombardier , and Embraer . In 2012 Hamilton Sundstrand merged with Goodrich Corporation to become UTC Aerospace Systems . In 2018, UTC merged UTC Aerospace Systems with Rockwell Collins to form Collins Aerospace . Pittsburgh Pittsburgh ( / ˈ p ɪ t s b ɜːr ɡ / PITS -burg )

6232-486: Was federally recognized as "Pittsburg", though use of the final h was retained during this period by the city government and other local organizations. After a public campaign, the federal decision to drop the h was reversed. The Pittsburg Press continued spelling the city without an h until 1921. [REDACTED]   Kingdom of France 1690s–1763 [REDACTED]   Great Britain 1681–1781 [REDACTED]   United States 1776–present The area of

6314-545: Was incorporated as a borough on April 22, 1794, with the following Act: "Be it enacted by the Pennsylvania State Senate and Pennsylvania House of Representatives of the Commonwealth of Pennsylvania ... by the authority of the same, that the said town of Pittsburgh shall be ... erected into a borough, which shall be called the borough of Pittsburgh for ever." From 1891 to 1911, the city's name

6396-517: Was once the site of railyards and associated dense, inexpensive housing for mill and railroad workers. Starting in the late 20th century, the city undertook a Main Street program in cooperation with the National Trust for Historic Preservation , encouraging design and landscape improvements on East Carson Street, and supporting new retail. The area has become a local Pittsburgher destination, and

6478-542: Was producing significant quantities of iron, brass, tin, and glass. On March 18, 1816, the 46-year-old local government became a city. It was served by numerous river steamboats that increased trading traffic on the rivers. In the 1830s, many Welsh people from the Merthyr steelworks immigrated to the city following the aftermath of the Merthyr Rising . By the 1840s, Pittsburgh was one of the largest cities west of

6560-625: Was the nation's eighth-largest city , accounting for between one-third and one-half of national steel output. The Pittsburgh Agreement was subscribed in May 1918 between the Czech and Slovak nationalities, as envisioned by T. G. Masaryk , concerning the future foundation of Czechoslovakia . The city suffered severe flooding in March 1936. The city's population swelled to more than a half million, attracting numerous European immigrants to its industrial jobs. By 1940, non-Hispanic whites were 90.6% of

6642-631: Was the chief product transported downstream. After a canal tunnel through Grant's Hill in Pittsburgh was completed in 1832, boats could travel between the Monongahela River and the Western Division Canal of Pennsylvania's principal east–west canal and railroad system, the Main Line of Public Works . In 1897, the federal government took possession of the Monongahela Navigation through condemnation proceedings. Later,

6724-584: Was the first constable, and William Troop was the first clerk. Following the American Revolution , the village of Pittsburgh continued to grow. One of its earliest industries was boat building for settlers of the Ohio Country . In 1784, Thomas Vickroy completed a town plan which was approved by the Penn family attorney. Pittsburgh became a possession of Pennsylvania in 1785. The following year,

#355644