|Maintained by||Multnomah County|
|Design||Double-leaf "Strauss-type" bascule|
|Total length||1,382 ft (421 m)|
|Width||73.8 ft (22.5 m)|
|Longest span||Fixed: 268 ft (82 m) |
Double-leaf bascule: 252 ft (77 m)
|Clearance below||64 ft (20 m) closed|
|Designer|| Ira G. Hedrick;|
Robert E. Kremers
|Opened||May 28, 1926 |
(replaced 1894 bridge)
|Location||Portland, Oregon; Willamette River at river mile 12.7|
|MPS||Willamette River Highway Bridges of Portland, Oregon|
|NRHP reference #||12000931|
|Added to NRHP||November 14, 2012|
The Burnside Bridge is a 1926-built bascule bridge that spans the Willamette River in Portland, Oregon, United States, carrying Burnside Street. It is the second bridge at the same site to carry that name. It was added to the National Register of Historic Places in November 2012.
A bascule bridge is a moveable bridge with a counterweight that continuously balances a span, or "leaf", throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed.
The Willamette River is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is 187 miles (301 km) long, lying entirely in northwestern Oregon in the United States. Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette Valley, a basin that contains two-thirds of Oregon's population, including the state capital, Salem, and the state's largest city, Portland, which surrounds the Willamette's mouth at the Columbia.
Portland is the largest and most populous city in the U.S. state of Oregon and the seat of Multnomah County. It is a major port in the Willamette Valley region of the Pacific Northwest, at the confluence of the Willamette and Columbia rivers. As of 2018, Portland had an estimated population of 653,115, making it the 25th most populated city in the United States, and the second-most populous in the Pacific Northwest. Approximately 2.4 million people live in the Portland metropolitan statistical area (MSA), making it the 25th most populous MSA in the United States. Its Combined Statistical Area (CSA) ranks 19th-largest with a population of around 3.2 million. Approximately 60% of Oregon's population resides within the Portland metropolitan area.
The bridge was designed by Ira G. Hedrickand Robert E. Kremers, incorporating a bascule lift mechanism designed by Joseph Strauss.
Ira Grant Hedrick was an American civil engineer who designed the Burnside Bridge in Oregon, the Red River Bridge, Clarendon, and Newport bridges in Arkansas, and many other bridges and viaducts. Hedrick designed many large scale bridges in Arkansas in late 1920s through early 1930s. Hedrick was also president of the Kansas City Viaduct and Terminal Railway Company. The Historic American Engineering Record says that he was "one of the outstanding engineers of the South".
Joseph Baermann Strauss was an American structural engineer of German descent, who revolutionized the design of bascule bridges. He was the chief engineer of the Golden Gate Bridge, a suspension bridge.
Including approaches, the Burnside has a total length of 2,308 ft (703 m) and a 251 ft (77 m) center span. While lowered this span is normally 64 ft (20 m) above the river. The deck is made of concrete, which contributes to its being one of the heaviest bascule bridges in the United States. The counterweights, housed inside the two piers, weigh 1,700 short tons (1,518 long tons; 1,542 t). The lifting is normally controlled by the Hawthorne Bridge operator, but an operator staffs the west tower during high river levels. As of 2005, the bridge opened for river traffic an average of 35 times a month. :47
A counterweight is a weight that, by exerting an opposite force, provides balance and stability of a mechanical system. Its purpose is to make lifting the load more efficient, which saves energy and is less taxing on the lifting machine.
The Hawthorne Bridge is a truss bridge with a vertical lift that spans the Willamette River in Portland, Oregon, joining Hawthorne Boulevard and Madison Street. It is the oldest vertical-lift bridge in operation in the United States and the oldest highway bridge in Portland. It is also the busiest bicycle and transit bridge in Oregon, with over 8,000 cyclists and 800 TriMet buses daily. It was added to the National Register of Historic Places in November 2012.
The bridge provides shelter for the initially unauthorized Burnside Skatepark under the east end.On weekends, the Portland Saturday Market was held mostly under the bridge's west end for many years. The market was reoriented in 2009, but the Burnside Bridge continues to provide shelter for a few vendor stalls at the market's northern end.
The Burnside Skatepark is a DIY concrete skatepark located in Portland, Oregon, United States. It is located under the east end of the Burnside Bridge. The project was started without permission from the city of Portland before being accepted as a public skatepark. Its features include many hips, pools, pyramids, and vertical sections. The skatepark is free-admission and requires no helmet, protective knee-pads, or elbow-pads. The skatepark receives no funding from the city of Portland. The park is regarded as an on-going project that is funded by donations.
The Portland Saturday Market is an outdoor arts and crafts market in Portland, Oregon. It is the largest continuously operated outdoor market in the United States. It is held every Saturday and Sunday from the beginning of March through December 24, in Tom McCall Waterfront Park underneath Burnside Bridge and south of the bridge, as well as within an adjacent plaza just across Naito Parkway, extending west to the Skidmore Fountain. The market's hours of operations are from 10 a.m. to 5 p.m. on Saturdays, and 11 a.m. to 4:30 p.m on Sundays, and admission is free. The market is accessible by foot, bicycle, Segway, and TriMet's MAX Light Rail line which stops near the market at the Skidmore Fountain stop. The market has over 400 members and generates an estimated $12 million in gross sales annually. It has become a central economic engine for the historic Old Town Chinatown neighborhood, and attracts an estimated 750,000 visitors to this area each year.
In 1891, Burnside Street was renamed from "B" street to take the name of Dan Wyman Burnside, a local businessman who was a proponent of the 1866 dredging of the Willamette River. 4, 1894. It was a swing-span truss bridge made of wrought iron and steel.Construction of the original Burnside Bridge began in November 1892, and the bridge opened on July
Burnside Street is a major thoroughfare of Portland, in the U.S. state of Oregon, and one of a few east–west streets that run uninterrupted on both sides of the Willamette River. It serves as the dividing line between North Portland and South Portland. Its namesake bridge, Burnside Bridge, is one of the most heavily traversed in Portland.
A swing bridge is a movable bridge that has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the turning span can then pivot horizontally as shown in the animated illustration to the right. Small swing bridges as found over canals may be pivoted only at one end, opening as would a gate, but require substantial underground structure to support the pivot.
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements usually forming triangular units. The connected elements may be stressed from tension, compression, or sometimes both in response to dynamic loads. Truss bridges are one of the oldest types of modern bridges. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently.
The replacement was part of a $4.5 million bond that also included the construction of the Ross Island and Sellwood bridges. The public would later learn that the contract was given for $500,000 more than the lowest bid. Three Multnomah County commissioners were recalled as a result of the scandal, and a new engineering company assumed control of the project.
The Ross Island Bridge is a cantilever truss bridge that spans the Willamette River in Portland, Oregon. It carries U.S. Route 26 across the river between southwest and southeast Portland. The bridge opened in 1926 and was designed by Gustav Lindenthal and honors Oregon pioneer Sherry Ross. It is named for its proximity to Ross Island. Although it looks like a deck arch bridge, it is a cantilever deck truss bridge, a rare type in Oregon.
The Sellwood Bridge is a deck arch bridge that spans the Willamette River in Portland, Oregon, in the United States. The current bridge opened in 2016 and replaced a 1925 span that had carried the same name. The original bridge was Portland's first fixed-span bridge and, being the only river crossing for miles in each direction, the busiest two-lane bridge in Oregon. The Sellwood Bridge links the Sellwood and Westmoreland neighborhoods of Portland on the east side with Oregon Route 43/Macadam Avenue on the west side. At its east end it leads to Tacoma Street. The bridge is owned and operated by Multnomah County. The original span of 1925 was a steel truss bridge, while its 2016 replacement is a deck-arch-type bridge.
The bridge opened on May 28, 1926, at a final cost of $4.5 million (including approaches). It was the first Willamette River bridge in Portland designed with input from an architect.This led to the Italian Renaissance towers and decorative metal railings. The bascule system was designed by Joseph Strauss. The initial principal engineer for the bridge construction was the firm of Hedrick & Kremers. The bridge was then completed by Gustav Lindenthal, who also supervised its construction.
Streetcars crossed the Burnside Bridge until 1950,and electric trolleybuses serving the Sandy Blvd. route did so from 1936 to 1958. Currently, three TriMet bus routes use the bridge.
In the 1990s the Burnside Bridge was made a Regional Emergency Transportation Route, the one non-freeway bridge to be used by emergency vehicles. In 1995 one of the six lanes was removed to accommodate new bicycle lanes. From March until November 2002 the bridge went through a $2.1 million seismic retrofit, making it the first bridge operated by Multnomah County to receive earthquake protection.
The bridge was under construction in 2006 in order to replace the deck. 9, 2007. The bridge was added to the National Register of Historic Places in November 2012.The electric streetcar tracks, abandoned in 1950, were visible during the construction. This project was budgeted at $9 million and the majority of the work was completed on December
The Eastbank Esplanade, which opened in 2001, is connected to the bridge by stairs added during the esplanade's construction. However, because of the bridge's age, it cannot support any extra weight, so the stairways must be supported by separate pilings.
Indie rock band the Mountain Goats prominently mention the Burnside Bridge in the lyrics of their 2012 song "Steal Smoked Fish".
The Steel Bridge is a through truss, double-deck vertical-lift bridge across the Willamette River in Portland, Oregon, United States, opened in 1912. Its lower deck carries railroad and bicycle/pedestrian traffic, while the upper deck carries road traffic, and light rail (MAX), making the bridge one of the most multimodal in the world. It is the only double-deck bridge with independent lifts in the world and the second oldest vertical-lift bridge in North America, after the nearby Hawthorne Bridge. The bridge links the Rose Quarter and Lloyd District in the east to Old Town Chinatown neighborhood in the west.
The Fremont Bridge is a steel tied-arch bridge over the Willamette River located in Portland, Oregon, United States. It carries Interstate 405 and US 30 traffic between downtown and North Portland where it intersects with Interstate 5. It has the longest main span of any bridge in Oregon and is the second longest tied-arch bridge in the world. The bridge was designed by Parsons, Brinckerhoff, Quade and Douglas, and built by Murphy Pacific Corporation.
The Morrison Bridge is a bascule bridge that spans the Willamette River in Portland, Oregon. Completed in 1958, it is the third bridge at approximately the same site to carry that name. It is one of the most heavily used bridges in Portland. It was added to the National Register of Historic Places in November 2012.
The Marquam Bridge is a double-deck, steel-truss cantilever bridge that carries Interstate 5 traffic across the Willamette River south of downtown Portland, Oregon. It is the busiest bridge in Oregon, carrying 140,500 vehicles a day as of 2016. The upper deck carries northbound traffic; the lower deck carries southbound traffic.
The Broadway Bridge is a Rall-type bascule bridge spanning the Willamette River in Portland, Oregon, United States, built in 1913. It was Portland's first bascule bridge, and it continues to hold the distinction of being the longest span of its bascule design type in the world. It was added to the National Register of Historic Places in November 2012.
The Burlington Northern Railroad Bridge 5.1 or BNSF Railway Bridge 5.1, also known as the St. Johns Railroad Bridge or the Willamette River Railroad Bridge, is a through truss railway bridge with a vertical lift that spans the Willamette River in Portland, Oregon, United States. Built by the Spokane, Portland and Seattle Railway (SP&S) and completed in 1908, it was originally a swing-span bridge, and its swing-span section was the longest in the world at the time. However, 81 years later the main span was converted from a swing-type to a vertical-lift type, in order to widen the navigation channel. The lift span is one of the highest and longest in the world. The bridge consists of five sections, with the two sections closest to the bank on each side fixed.
The Eastbank Esplanade is a pedestrian and bicycle path along the east shore of the Willamette River in Portland, Oregon, United States. Running through the Kerns, Buckman, and Hosford-Abernethy neighborhoods, it was conceived as an urban renewal project to rebuild the Interstate 5 bicycle bypass washed out by the Willamette Valley Flood of 1996. It was renamed for former Portland mayor Vera Katz in November 2004 and features a statue of her near the Hawthorne Bridge.
Buckman is a neighborhood in the Southeast section of Portland, Oregon. The neighborhood is bounded by the Willamette River on the west, E Burnside St. on the north, SE 28th Ave. on the east, and SE Hawthorne Blvd. on the south.
The Sauvie Island Bridge crosses the Multnomah Channel of the Willamette River near Portland, Oregon, United States. The original Parker truss bridge, built in 1950 with a 200-foot (61 m) main span, was replaced with a tied arch bridge with a 360-foot (110 m) span in 2008 due to cracks discovered in 2001.
Waddell & Harrington was an American engineering company that designed bridges from 1907 to 1915. It was formed in 1907 as a partnership of John Alexander Low Waddell (1854–1938) and John Lyle Harrington (1868–1942) and was based in Kansas City, Missouri, but had offices in Portland, Oregon, and Vancouver, British Columbia. The company designed more than 30 vertical-lift bridges for highways and railroads.
Ghost Ship is an outdoor 2001 sculpture by James Harrison and Rigga, a group of local artists, located along the Eastbank Esplanade in Portland, Oregon. It is made of copper, stainless steel, art glass, and two lamps. It is part of the City of Portland and Multnomah County Public Art Collection courtesy of the Regional Arts & Culture Council.
Echo Gate is an outdoor 2001 sculpture by Ean Eldred and the architectural firm Rigga, located along the Eastbank Esplanade in Portland, Oregon, United States. It was funded by the City of Portland Development Commission's Percent for Art program, and is part of the City of Portland and Multnomah County Public Art Collection courtesy of the Regional Arts & Culture Council.
Stack Stalk is an outdoor 2001 sculpture by Ean Eldred and the architectural firm Rigga, located along the Eastbank Esplanade in Portland, Oregon.
Alluvial Wall is an outdoor 2001 sculpture by Peter Nylen and the architectural firm Rigga located along the Eastbank Esplanade in Portland, Oregon.
The Madison Street Bridge, or Madison Bridge, refers to two different bridges that spanned the Willamette River in Portland, Oregon, from 1891 to 1900 and from 1900 to 1909. The bridges connected Madison Street, on the river's west bank, and Hawthorne Avenue, on the east bank, on approximately the same alignment as the existing Hawthorne Bridge. The original and later bridges are sometimes referred to as Madison Street Bridge No. 1 and Madison Street Bridge No. 2, respectively. The second bridge, built in 1900, has alternatively been referred to as the "rebuilt" Madison Street Bridge, rather than as a new bridge, because it was rebuilt on the same piers. Both were swing bridges, whereas their successor, the Hawthorne Bridge, is a vertical-lift-type.
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