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Governor Thomas Johnson Bridge
The Governor Thomas Johnson Memorial Bridge (also referred to as the Thomas Johnson Bridge and the Solomons Bridge) is a bridge in Maryland over the lower Patuxent River joining Calvert and St. Mary's counties. The bridge, named for the first governor of Maryland, Thomas Johnson, saw construction start in 1972 and opened to traffic on December 17, 1977. The bridge, carrying an average of 33,000 vehicles a day on Maryland Route 4 (MD 4), is one of two crossings of the Patuxent River in Southern Maryland (the other is the Benedict Bridge approximately 20 miles up river, where MD 231 connects Calvert County and Charles County). The north end of the bridge, on the Calvert side, is located in Solomons. Just prior to the bridge, MD 2-4 narrows from four lanes to two, and MD 2 exits the highway, passing under the bridge and heading toward downtown Solomons. MD 4 continues onto the bridge itself and over the Patuxent River. Description The bridge, carrying two lanes and no shou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patuxent River
The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast passing through Baltimore, and the Patuxent River between the two. The Patuxent watershed had a rapidly growing population of 590,769 in 2000. It is the largest and longest river entirely within Maryland, and its watershed is the largest completely within the state. Geography The river source, from the Chesapeake, is in the hills of the Maryland Piedmont near the intersection of four counties – Howard, Frederick, Montgomery and Carroll, and only from Parr's Spring, the source of the south fork of the Patapsco River. Flowing in a generally southeastward direction, the Patuxent crosses the urbanized corridor between Baltimore and Washington, D.C., and opens up into a navigable tidal estuary near the colonial seaport of Queen A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam Bridge
Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. No moments are transferred throughout the support, hence their structural type is known as '' simply supported''. The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid across a stream. Bridges designed for modern infrastructure will usually be constructed of steel or reinforced concrete, or a combination of both. The concrete elements may be reinforced, prestressed or post-tensioned. Such modern bridges include girder, plate girder, and box girder bridges, all types of beam bridges. Types of construction could include having many beams side by side with a deck across the top of them, to a main beam either side supporting a deck between them. The main beams could be I-beams, trusses, or box girders. They could be half-through, or braced across the top to create a through bridge. Because no moments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam Bridges In The United States
Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized group of electrically charged particles ***Cathode ray, or electron beam or e-beam, streams of electrons observed in discharge tubes ***X-ray beam, a penetrating form of high-energy electromagnetic radiation ** Molecular beam, a beam of particles moving at approximately equal velocities Arts, entertainment and media * Beam (music), a connection line in musical notation * Beam, to transport matter using the Transporter in the ''Star Trek'' fictional universe * Beam (rapper), American hip hop artist * BEAM.TV, an online digital delivery and content management platform * BEAM Channel 31, a Philippines television network * Beam (website), later Mixer, a former video game live streaming platform * BeamNG.drive, an open-world vehicle simulation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1977
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MD Route 231
MD, Md, mD or md may refer to: Places * Moldova (ISO country code MD) * Maryland (US postal abbreviation MD) * Magdeburg (vehicle plate prefix MD), a city in Germany * Mödling District (vehicle plate prefix MD), in Lower Austria, Austria People * Muhammad (name) or Mohammed (Md) Arts, entertainment, and media Music * ' or ' (MD or m.d.; "right hand"), in piano scores * Music director * Mini Disc Other arts, entertainment, and media * ''MDs'' (TV series), 2002 * ', ("Materials and discussions for the analysis of classical texts"), an Italian journal Brands and enterprises * Air Madagascar, IATA airline code * McDonnell Douglas aircraft model prefix * MD Helicopters Science and technology Biology and medicine * Doctor of Medicine, a medical degree * Medial dorsal nucleus, a cluster of neurons in the thalamus * Muscular dystrophy, a group of diseases involving breakdown of skeletal muscles * Ménière's disease, a disorder of the inner ear * MD (Ayurveda), a degree in Indian me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MD Route 4
MD, Md, mD or md may refer to: Places * Moldova (ISO country code MD) * Maryland (US postal abbreviation MD) * Magdeburg (vehicle plate prefix MD), a city in Germany * Mödling District (vehicle plate prefix MD), in Lower Austria, Austria People * Muhammad (name) or Mohammed (Md) Arts, entertainment, and media Music * ' or ' (MD or m.d.; "right hand"), in piano scores * Music director * Mini Disc Other arts, entertainment, and media * ''MDs'' (TV series), 2002 * ', ("Materials and discussions for the analysis of classical texts"), an Italian journal Brands and enterprises * Air Madagascar, IATA airline code * McDonnell Douglas aircraft model prefix * MD Helicopters Science and technology Biology and medicine * Doctor of Medicine, a medical degree * Medial dorsal nucleus, a cluster of neurons in the thalamus * Muscular dystrophy, a group of diseases involving breakdown of skeletal muscles * Ménière's disease, a disorder of the inner ear * MD (Ayurveda), a degree in Indian me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin O'Malley
Martin Joseph O'Malley (born January 18, 1963) is an American lawyer and former politician who served as the 61st Governor of Maryland from 2007 to 2015. A member of the Democratic Party, he was Mayor of Baltimore from 1999 to 2007. O'Malley was elected mayor of Baltimore in 1999 after a surprise win in the Democratic primary. As mayor, O'Malley prioritized reducing crime within the city. He was reelected in 2004. O'Malley won the 2006 gubernatorial election, defeating incumbent Republican governor Bob Ehrlich. During his first term, O'Malley implemented Maryland StateStat and became the first governor to sign the National Popular Vote Interstate Compact. O'Malley won reelection in 2010. In 2011, he signed a law that would make illegal immigrants brought to the United States as children eligible for in-state college tuition. In 2012, he signed a law to legalize same-sex marriage in Maryland. Both laws were approved in referendums in the 2012 general election. O'Malley ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minneapolis, Minnesota
Minneapolis () is the largest city in Minnesota, United States, and the county seat of Hennepin County. The city is abundant in water, with thirteen lakes, wetlands, the Mississippi River, creeks and waterfalls. Minneapolis has its origins in timber and as the flour milling capital of the world. It occupies both banks of the Mississippi River and adjoins Saint Paul, the state capital of Minnesota. Prior to European settlement, the site of Minneapolis was inhabited by Dakota people. The settlement was founded along Saint Anthony Falls on a section of land north of Fort Snelling; its growth is attributed to its proximity to the fort and the falls providing power for industrial activity. , the city has an estimated 425,336 inhabitants. It is the most populous city in the state and the 46th-most-populous city in the United States. Minneapolis, Saint Paul and the surrounding area are collectively known as the Twin Cities. Minneapolis has one of the most extensive public par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I-35W Mississippi River Bridge
The I-35W Mississippi River bridge (officially known as Bridge 9340) was an eight-lane, steel truss arch bridge that carried Interstate 35W across the Mississippi River one-half mile (875 m) downstream from the Saint Anthony Falls in Minneapolis, Minnesota, United States. The bridge opened in 1967 and was Minnesota's third busiest, carrying 140,000 vehicles daily. It experienced a catastrophic failure during the evening rush hour on August 1, 2007, killing 13 people and injuring 145. The NTSB cited a design flaw as the likely cause of the collapse, noting that an excessively thin gusset plate ripped along a line of rivets, and that additional weight on the bridge at the time contributed to the catastrophic failure. Help came immediately from mutual aid in the seven-county Minneapolis–Saint Paul metropolitan area and emergency response personnel, charities, and volunteers. Within a few days of the collapse, the Minnesota Department of Transportation (Mn/DOT) planned its rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maryland Route 235
Maryland Route 235 (MD 235) is a state highway in the U.S. state of Maryland. Known as Three Notch Road, the state highway runs between its southern intersection with MD 5 in Ridge and its northern intersection with MD 5 near Mechanicsville. While the southern part of the state highway is a two-lane undivided rural road, the northern part of MD 235 is a four- to six-lane divided highway connecting Naval Air Station Patuxent River (NAS Patuxent River) and the Washington, D.C., metro area in conjunction with MD 5. Three Notch Road has been the main highway between northern St. Mary's County and Point Lookout since the colonial era. The highway was reconstructed as the modern MD 235 between 1923 and 1938. The state highway was then completely rebuilt during World War II to serve the recently established NAS Patuxent River. Between 1960 and 1985, MD 235 was converted into a four-lane divided highway to the west and north of the mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rush Hour
A rush hour (American English, British English) or peak hour (Australian English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest. Normally, this happens twice every weekday: once in the morning and once in the afternoon or evening, the times during which the most people commute. The term is often used for a period of peak congestion that may last for more than one hour. The term is very broad, but often refers specifically to private automobile transportation traffic, even when there is a large volume of cars on a road but not many people, or if the volume is normal but there is some disruption of speed. By analogy to vehicular traffic, the term Internet rush hour has been used to describe periods of peak data network usage, resulting in delays and slower delivery of data packets. Definition The name is sometimes a misnomer, as the peak period often lasts more than one hour and the "rush" refers to the volume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calvert County
Calvert County is located in the U.S. state of Maryland. As of the 2020 census, the population was 92,783. Its county seat is Prince Frederick. The county's name is derived from the family name of the Barons of Baltimore, the proprietors of the English Colony of Maryland Calvert County is included in the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area. It occupies the Calvert Peninsula, which is bordered on the east by Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. The county has one of the highest median household incomes in the United States. It is one of the older counties in Maryland, after St. Mary's, Kent County and Anne Arundel counties. History Early History In 1608, Captain John Smith was the first European to sail past Calvert County while exploring the western shore of the Chesapeake Bay. On his map, he accurately represented the Patuxent River as well as several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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