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List Of Bridges Documented By The Historic American Engineering Record In Washington, D.C. ...
This is a list of bridges documented by the Historic American Engineering Record in Washington, D.C. Bridges References {{HAER list, structure=bridge *List *List Washington, D.C. Bridges Bridges A bridge is a structure built to Span (engineering), 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, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record
Heritage Documentation Programs (HDP) is a division of the U.S. National Park Service (NPS) responsible for administering the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER), and Historic American Landscapes Survey (HALS). These programs were established to document historic places in the United States. Records consist of measured drawings, archival photographs, and written reports, and are archived in the Prints and Photographs Division of the Library of Congress. Historic American Buildings Survey In 1933, NPS established the Historic American Buildings Survey following a proposal by Charles E. Peterson, a young landscape architect in the agency. It was founded as a constructive make-work program for architects, draftsmen and photographers left jobless by the Great Depression. It was supported through the Historic Sites Act of 1935. Guided by field instructions from Washington, D.C., the first HABS recorders were tasked with docume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoreham Hill Bridge
The Shoreham Hill Bridge is a bridge carrying the Rock Creek and Potomac Parkway across Rock Creek in Washington, DC. It is the most upstream of three bridges where the Rock Creek and Potomac Parkway switches from one side of the river to the other, the others being the bridge near P Street and the L Street Bridge.Davis, Timothy (1992). History and Description pp. 10–12, 92, 96 History As part of the construction of the Rock Creek and Potomac Parkway in the 1930s, the original bridge was purposely built in a utilitarian style, using salvaged steel trusses from the Georgetown Aqueduct Bridge. According to Rock Creek and Potomac Parkway Commission executive officer Ulysses S. Grant III, the bridge's appearance would encourage the public to demand a more aesthetically pleasing and expensive bridge. The steel-girder bridge was constructed in 1929, part of the first stretch of the parkway opened. It was indeed soon considered to not fit in with the desired appearance of the park, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Avenue (Washington, D
Pennsylvania Avenue is a diagonal street in Washington, D.C., and Prince George's County, Maryland, that connects the White House and the United States Capitol and then crosses the city to Maryland. In Maryland it is also Maryland Route 4 (MD 4) to MD 717 in Upper Marlboro, where it becomes Stephanie Roper Highway. The section between the White House and Congress is called "America's Main Street"; it is the location of official parades and processions, as well as protest marches. Moreover, Pennsylvania Avenue is an important commuter road and is part of the National Highway System. Route The avenue runs for inside Washington, but the of Pennsylvania Avenue from the White House to the United States Capitol building is considered the most important. It continues within the city for , from the southeast corner of the Capitol grounds through the Capitol Hill neighborhood, and over the Anacostia River on the John Philip Sousa Bridge. Crossing most of Prince George's County, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Avenue Bridge
The Pennsylvania Avenue Bridge conveys Pennsylvania Avenue across Rock Creek and the adjoining Rock Creek and Potomac Parkway, between the neighborhoods of Georgetown and Foggy Bottom in Northwest Washington, D.C. Pennsylvania Avenue terminates at M Street immediately west of the bridge. Original bridge The original bridge at this site was constructed of large cast iron pipes by the Army Corps of Engineers in 1858 to 1860. Montgomery C. Meigs designed the bridge and supervised its construction as part of the original construction of the Washington Aqueduct. It was officially named the Meigs Bridge after it was completed, although name that never caught on and it was often called other names such as the Tubular Bridge. At the time of its construction it was the only bridge made completely of cast iron of substantial size in the United States. It was originally intended to be solely an aqueduct bridge carrying water mains connected to the Georgetown Reservoir, but the ons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K Street (Washington, D , metonymically, as many lobbyists have traditionally had offices on the Washington, D.C., street
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K Street may refer to: * K Street (Sacramento), a street in Sacramento, California, United States * ''K Street'' (TV series), a 2003 HBO television series about lobbyists * K Street (Washington, D.C.), a street in Washington, D.C., United States * Lobbying industry in the United States Lobbying in the United States describes paid activity in which special interest groups hire well-connected professional advocates, often lawyers, to argue for specific legislation in decision-making bodies such as the United States Congress. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rigid-frame Bridge
A Rigid-frame bridge is a bridge in which the superstructure and substructure are rigidly connected to act as a continuous unit. Typically, the structure is cast monolithically, making the structure continuous from deck to foundation. The connections between members are rigid connections which transfer bending moment, axial forces, and shear forces. A bridge design consisting of a rigid frame can provide significant structural benefits, but can also be difficult to design and/or construct. History The use of rigid-frame bridges began in Germany in the early twentieth century and quickly spread to the Americas. Emílio Henrique Baumgart and Arthur G. Hayden, in particular, gained notoriety for their use of concrete rigid frames in the early 1920s.Maryland Department of Transportation"Rigid Frame Bridges" Marylandroads.com At the time, reinforced concrete was commonly used in bridge design but the superstructure was designed with bearings on the substructure. In concrete rigid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K Street Bridge
The K Street Bridge is a complex of bridges over Rock Creek and the Rock Creek and Potomac Parkway in Washington, D.C. The lower level of the bridge carries the surface street K Street, while the upper level carries the Whitehurst Freeway (U.S. Route 29) which terminates and merges into K Street immediately east of the bridge. The central bridge is flanked by two flyover ramps that connect to the nearby terminus of Interstate 66.Ross, Amy (1992). History and Description/ref> The first bridge on the site was a stone arch bridge constructed in 1792; it was only the second crossing of Rock Creek built, the first being at M Street. This bridge was found to be unstable and its center arch was demolished in 1795. In 1869, a wood bridge was constructed, and in 1907 it was replaced by a steel-plate girder bridge. The completion of the Rock Creek and Potomac Parkway in 1936 increased traffic on the K Street Bridge, necessitating its replacement. The lower level of the current bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girder Bridge
A girder bridge is a bridge that uses girders as the means of supporting its deck. The two most common types of modern steel girder bridges are plate and box. The term "girder" is often used interchangeably with "beam" in reference to bridge design. However, some authors define beam bridges slightly differently from girder bridges. A girder may be made of concrete or steel. Many shorter bridges, especially in rural areas where they may be exposed to water overtopping and corrosion, utilize concrete box girder. The term "girder" is typically used to refer to a steel beam. In a beam or girder bridge, the beams themselves are the primary support for the deck, and are responsible for transferring the load down to the foundation. Material type, shape, and weight all affect how much weight a beam can hold. Due to the properties of the second moment of area, the height of a girder is the most significant factor to affect its load capacity. Longer spans, more traffic, or wider spacing o ... [...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] |
T-beam
A T-beam (or tee beam), used in construction, is a load-bearing structure of reinforced concrete, wood or metal, with a -shaped cross section. The top of the -shaped cross section serves as a flange or compression member in resisting compressive stresses. The web (vertical section) of the beam below the compression flange serves to resist shear stress. When used for highway bridges the beam incorporates reinforcing bars in the bottom of the beam to resist the tensile stresses which occur during bending. The T-beam has a big disadvantage compared to an I-beam (with shape) because it has no bottom flange with which to deal with tensile forces. One way to make a T-beam more efficient structurally is to use an inverted T-beam with a floor slab or bridge deck joining the tops of the beams. Done properly, the slab acts as the compression flange. History A T-beam is a structural element able to withstand large loads by resistance in the beam or by internal reinforcements. In some r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Creek Park
Rock Creek Park is a large urban park that bisects the Northwest quadrant of Washington, D.C. The park was created by an Act of Congress in 1890 and today is administered by the National Park Service. In addition to the park proper, the Rock Creek administrative unit of the National Park Service administers various other federally owned properties in the District of Columbia located to the north and west of the National Mall, including Meridian Hill Park on 16th Street, N.W., the Old Stone House in Georgetown, and certain of the Fort Circle Parks, a series of batteries and forts encircling the District of Columbia for its defense during the U.S. Civil War. History Rock Creek Park was established by an act of Congress signed into law by President Benjamin Harrison on September 27, 1890, following active advocacy by Charles C. Glover and other civic leaders and in the wake of the creation of the National Zoo the preceding year. It was only the third national park estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Drive Bridge
The Ross Drive Bridge is a historic bridge located in the Washington, D.C. portion of Rock Creek Park, an urban national park listed on the National Register of Historic Places. Ross Drive Bridge was originally constructed as a timber bridge in 1903 to carry Ross Drive over a tributary ravine of Rock Creek. The bridge was rebuilt in 1907 with a 168-foot span. It was designed and constructed by the United States Army Corps of Engineers. Boulder Bridge and Ross Drive Bridge were added to the National Register of Historic Places on March 20, 1980. In addition, the bridges are contributing properties to the Rock Creek Park Historic District. See also * List of bridges on the National Register of Historic Places in Washington, D.C. * National Register of Historic Places listings in the District of Columbia This is a list of properties and districts in Washington, D.C., on the National Register of Historic Places. There are more than 600 listings, including 74 National Historic Land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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