Margaret Hunt Hill Bridge

Last updated
Margaret Hunt Hill Bridge
The Margaret Hunt Hill Bridge.jpg
The inaugural lighting of the Margaret Hunt Hill Bridge
Coordinates 32°46′48″N96°49′20″W / 32.7800°N 96.8221°W / 32.7800; -96.8221
CarriesTexas Spur 366.svg Spur 366
Crosses Trinity River
Locale Dallas, Texas
Characteristics
Design Cable-stayed bridge
Total length1,206 feet (368 m) [1]
Height400 feet (120 m) central arch pylon
Longest span603 feet (184 m) [2]
History
Designer Santiago Calatrava
OpenedMarch 29, 2012;11 years ago (March 29, 2012) [3] [4]
Statistics
TollNone
Location
Margaret Hunt Hill Bridge

The Margaret Hunt Hill Bridge is a bridge in Dallas, Texas, that spans the Trinity River. The bridge is named for Margaret Hunt Hill, an heiress and philanthropist. [5] The bridge was constructed as part of the Trinity River Project. Designed by Santiago Calatrava, it is one of three such bridges planned to be built over the Trinity; the second, the Margaret McDermott Bridge, is completed; the third cancelled. The span parallels the Ronald Kirk Bridge, a walking bridge that was previously the Continental Avenue bridge. [6]

Contents

History

The bridge, which opened in March 2012, is the first of a series of bridges that the office of Santiago Calatrava designed to span the Trinity River in downtown Dallas. [7] The bridge connects Spur 366 (Woodall Rodgers Freeway) in downtown to Singleton Boulevard in West Dallas. [8] Construction on the bridge began in December 2005. [9] The bridge cost $117 million to build. [10] A Dallas Morning News analysis put the project's total cost at $182 million. [11] Beginning in 2004, The Trinity Trust Foundation successfully worked to secure private funds in support of the Trinity River Corridor Project, including the Margaret Hunt Hill Bridge, Margaret McDermott Bridge, Ronald Kirk Bridge, trails and other components of the project.

On June 26, 2010, the signature 40-story center-support arch was topped with a central curved span, which can now be seen from many miles away in several directions. [12] The arch provides an additional feature to the Downtown Dallas skyline.

In 2012, the bridge received an Outstanding Civil Engineering Achievement Award from the Texas section of the American Society of Civil Engineers. [13] The bridge also received a 2012 European Convention for Constructional Steelwork Award For Steel Bridges. [14]

On June 1, 2020 at approximately 9:00 PM, several hundred protesters marching on the bridge were arrested in a kettling maneuver when Dallas Police routed the protest onto the bridge, blocked in the demonstration on both sides, fired teargas and pepper balls into the nonviolent crowd, then detained all protesters on the bridge for several hours. [15] On June 4, former Dallas Police Chief U. Reneé Hall announced that the protesters would not be charged following several days of attention and backlash from community members, political figures, local news outlets, and activist groups. [16]

Architecture

The cable-stayed bridge supports its 1,206 feet (368 m) length and 603 feet (184 m) main span with a steel arch whose peak's height is 400 feet (122 m). An array of twisting cables connect the underside of the arch's curved pylon to the bridge's platform. Fifty-eight (58) white strands descend from the arch and secure themselves along the centerline of the platform. The 16 feet (4.9 m) diameter support is composed of 25 individual segments, secured with 20,000 pounds (9,100 kg) of bolts and additional 450 tons (408,233 kg) of concrete. The bridge provides six lanes for vehicular traffic. [10] [17]

The bridge closely resembles two of three bridges constructed in 2005-2006 above the Autostrada A1 motorway and connecting roads in Reggio Emilia, Italy, that Calatrava had earlier designed. [18] In 2009, the European Convention for Constructional Steelwork gave the two bridges a European Steel Design Award, stating that the structures' original visual effects at different angles give the bridges "the aspect of huge musical instruments." [19]

MHH Bridge Panorama 02.jpg
Panoramic view of construction in July 2010.

Related Research Articles

<span class="mw-page-title-main">Dallas</span> City in Texas, United States

Dallas is a city in Texas and the most populous in the Dallas–Fort Worth metroplex, the fourth-largest metropolitan area in the United States at 7.5 million people. It is the most populous city in and seat of Dallas County with portions extending into Collin, Denton, Kaufman, and Rockwall counties. With a 2020 census population of 1,304,379, it is the ninth-most populous city in the U.S. and the third-most populous city in Texas after Houston and San Antonio. Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the Southern United States and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea.

<span class="mw-page-title-main">Cable-stayed bridge</span> Type of bridge with cables directly from towers

A cable-stayed bridge has one or more towers, from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly.

<span class="mw-page-title-main">Santiago Calatrava</span> Spanish engineer and architect

Santiago Calatrava Valls is a Spanish architect, structural engineer, sculptor and painter, particularly known for his bridges supported by single leaning pylons, and his railway stations, stadiums, and museums, whose sculptural forms often resemble living organisms. His best-known works include the Olympic Sports Complex of Athens, the Milwaukee Art Museum, the Turning Torso tower in Malmö, Sweden, the World Trade Center Transportation Hub in New York City, the Auditorio de Tenerife in Santa Cruz de Tenerife, the Margaret Hunt Hill Bridge in Dallas, Texas, and his largest project, the City of Arts and Sciences and Opera House in his birthplace, Valencia. His architectural firm has offices in New York City, Doha, and Zürich.

<span class="mw-page-title-main">Green Line (Dallas Area Rapid Transit)</span>

The Green Line is a 28.6-mile (46.0 km) light rail line in Dallas, United States, operated by the Dallas Area Rapid Transit authority (DART). The US$1.7 billion project opened in phases, starting in 2009. It operates in addition to the Blue, Red, and Orange lines.

<span class="mw-page-title-main">Reggio Emilia</span> City in Emilia-Romagna, Italy

Reggio nell'Emilia, usually referred to as Reggio Emilia, or simply Reggio by its inhabitants, and known until 1861 as Reggio di Lombardia, is a city in northern Italy, in the Emilia-Romagna region. It has about 171,944 inhabitants and is the main comune (municipality) of the Province of Reggio Emilia.

<span class="mw-page-title-main">Trinity River (Texas)</span> River in Texas, United States

The Trinity River is a 710-mile (1,140 km) river, the longest with a watershed entirely within the U.S. state of Texas. It rises in extreme northern Texas, a few miles south of the Red River. The headwaters are separated by the high bluffs on the southern side of the Red River.

<span class="mw-page-title-main">Pennybacker Bridge</span> Bridge in Austin, Texas

The Percy V. Pennybacker Jr. Bridge in Austin, Texas, is a through-arch bridge across Lake Austin which connects the northern and southern sections of the Loop 360 highway, also known as the "Capital of Texas Highway." The road is widely considered one of the most scenic urban drives in Texas, in large part due to this arched weathering-steel bridge and the rolling hills that flank the road. In 2001, 48,000 vehicles crossed the bridge daily. Ten years prior to this, 22,000 vehicles had crossed the bridge daily.

<span class="mw-page-title-main">Texas State Highway Spur 366</span> Highway in Texas

Spur 366, also named Woodall Rodgers Freeway, is a highway that connects Beckley Avenue and Singleton Boulevard in West Dallas to Interstate 35E and U.S. Highway 75 in central Dallas, Texas. The highway, as part of the downtown freeway loop, also serves as a dividing line between downtown Dallas on the south and the Uptown and Victory Park neighborhoods on the north.

The Trinity River Project is a public works project undertaken in the 2000s in the city of Dallas, Texas, United States. Its goal is to redevelop the Trinity River. The project aims to turn the river's path into a collection of sports fields, trails, nature centers, and recreational opportunities. At 10,000 acres (4,000 ha), it is one of the larger urban parks in the United States.

<span class="mw-page-title-main">Ponte della Costituzione</span> Bridge in Venice

The Ponte della Costituzione is the fourth bridge over the Grand Canal in Venice, Italy. It was designed by Santiago Calatrava, and was moved into place in 2007, amid protest by politicians and the general public. The bridge was installed in 2008 and opened to the public on the night of September 11, 2008. The bridge was known as Quarto Ponte sul Canal Grande before the official name was adopted to celebrate the 60th anniversary of the Italian constitution in 2008. Tourists and locals in Venice now refer to it as the Calatrava Bridge.

<span class="mw-page-title-main">Peace Bridge (Calgary)</span> Bridge on Bow River in Calgary, Alberta, Canada

Peace Bridge is a bridge that accommodates people walking and cycling across the Bow River in Calgary, Alberta, Canada. The bridge, designed by Spanish architect Santiago Calatrava, opened for use on March 24, 2012.

<span class="mw-page-title-main">Downtown Dallas</span> Central business district and residential area in Texas, United States

Downtown Dallas is the central business district (CBD) of Dallas, Texas, United States, located in the geographic center of the city. It is the second-largest business district in the state of Texas. The area termed "Downtown" has traditionally been defined as bounded by the downtown freeway loop, bounded on the east by I-345 (although known and signed as the northern terminus of I-45 and the southern terminus of US 75, on the west by I-35E, on the south by I-30, and on the north by Woodall Rodgers Freeway.

<span class="mw-page-title-main">Adomi Bridge</span> Bridge in Eastern Region, Ghana

The Adomi Bridge is a latticed steel arch suspension bridge crossing the Volta River at Atimpoku in Ghana in West Africa. It is the first permanent bridge to span the Volta River, which drains south into the Gulf of Guinea, and is Ghana's longest suspension bridge. It provides the main road passage, just south of the Akosombo Dam, between the Eastern Region and the Volta Region of Ghana. It was opened in 1957 by Kwame Nkrumah, Ghana's first president. The iconic crescent-shaped arch bridge is featured in Ghanaian stamps and currency.

<span class="mw-page-title-main">Phyllis J. Tilley Memorial Bridge</span> Bridge in Fort Worth, Texas

The Phyllis J. Tilley Memorial Bridge is a pedestrian bridge in Fort Worth, Texas.

The Horseshoe Project was a $798 million highway project that upgraded the congested Mix Master interchange in Downtown Dallas, Texas, connecting Interstate 35E (I-35E) and Interstate 30 (I-30). Construction began during the spring of 2013 and ended in 2017. The contractor was Pegasus Link Constructors, a partnership between Balfour Beatty Infrastructure and Fluor Enterprises. The project, which used the design-build project delivery system, included construction of the Margaret McDermott Bridge partially designed by Spanish civil engineer and architect Santiago Calatrava.

<span class="mw-page-title-main">Margaret Hunt Hill</span> American philanthropist

Margaret Hunt Hill (1915–2007) was an American heiress and philanthropist.

<span class="mw-page-title-main">Margaret McDermott Bridge</span> Bridge in Dallas, Texas

The Margaret McDermott Bridge is a conventional concrete pier-and-beam freeway bridge with cable-stayed bike lines over the Trinity River in Dallas, Texas. It replaced the late-1950s to early-1960s Interstate 30 (I-30) bridge, which reached its end of life. It was partially designed by Santiago Calatrava, and is part of the Trinity River Project and the Horseshoe Project. It was named for Margaret McDermott, an area philanthropist.

Trinity Groves is a restaurant and retail development in West Dallas, at the western end of the Margaret Hunt Hill Bridge. The development is owned and managed by Stuart Fitts, Larry McGregor, and Phil Romano.

<span class="mw-page-title-main">Ronald Kirk Bridge</span> Bridge in Continental Avenue in Dallas, Texas

The Ronald Kirk Bridge is a pedestrian bridge over the Trinity River in Dallas, Texas. It connects Downtown Dallas and West Dallas, paralleling the 2012 Margaret Hunt Hill Bridge for vehicles, and the 1930 Texas and Pacific Railway Trinity River Bridge.

<span class="mw-page-title-main">San Francesco di Paola Bridge</span> Bridge in Cosenza, Italy

The San Francesco di Paola Bridge or Cosenza Bridge is a road bridge in Cosenza, Italy, designed by Spanish architect Santiago Calatrava.

References

  1. "Margaret Hunt Hill Bridge". calatrava.com. Retrieved 23 February 2023.
  2. "Margaret Hunt Hill Bridge". calatrava.com. Retrieved 23 February 2023.
  3. Dallas Morning News Archived 2012-04-25 at the Wayback Machine - "Really This Time: Margaret Hunt Hill Bridge Celebration Set for March 2–4," June 21, 2011
  4. "TxDOT: Margaret Hunt Hill Bridge won't open until late March | Dallas Morning News". Archived from the original on 2014-05-24. Retrieved 2012-02-26.
  5. Jaime S. Jordan, Margaret Hunt Hill dies at 91, Dallas Business Journal, Jun 15, 2007
  6. "The great white hoop: Five years of the Margaret Hunt Hill Bridge". Dallas News. 2017-03-24. Retrieved 2017-08-28.
  7. "Margaret Hunt Hill Bridge / Santiago Calatrava". ArchDaily. June 25, 2012. Retrieved January 2, 2017.
  8. "Margaret Hunt Hill Bridge". Trinity River Corridor Project. City of Dallas. 2015. Archived from the original on March 15, 2016. Retrieved January 2, 2017.
  9. "First of Calatrava trio breaks ground in Dallas". News: Bridge design & engineering. London: Hemming Information Services. December 12, 2005. Archived from the original on March 16, 2006. Retrieved January 2, 2017.
  10. 1 2 Margaret Hunt Hill Bridge at Structurae . Retrieved May 3, 2006
  11. Michael A. Lindenberger and Jeffrey Weiss (February 21, 2012). "True cost of Dallas' Margaret Hunt Hill Bridge: $182 million". Dallas Morning News. Retrieved February 13, 2015.
  12. (1) Dallas Morning News - "Dallas' Margaret Hunt Hill Bridge has its arch topped off". Retrieved on June 27, 2010
    (2) Clouds 365 Project- Year 2 Archived 2011-03-23 at the Wayback Machine - "3-20-11 | Margaret Hunt Hill Bridge and Downtown Dallas view from Hutchins Avenue"
    (3) Clouds 365 Project- Year 3 - "11-02-11 | Margaret Hunt Hill Bridge and Downtown Dallas view from Hutchins Avenue"
  13. (1) "Margaret Hunt Hill Bridge, 2012 OCEA". Texas Section-American Society of Civil Engineers. Archived from the original on January 5, 2017. Retrieved January 5, 2017.
    (2) "Outstanding Civil Engineering Achievement Awards". Texas Section-American Society of Civil Engineers. Archived from the original on February 18, 2016. Retrieved January 5, 2017.
  14. "Margaret Hunt Bridge, Dallas, USA". 2012 ECCS Award For Steel Bridges. Brussels, Belgium: European Convention for Constructional Steelwork. pp. 4–7. Archived from the original on January 5, 2017. Retrieved January 5, 2017.
  15. Howland, Jack (June 1, 2020). "Hundreds of George Floyd protesters arrested on Margaret Hunt Hill Bridge in Dallas". Fort Worth Star-Telegram. Retrieved June 6, 2020.
  16. Jaramillo, Cassandra; Norimine, Hayat (June 4, 2020). "Dallas Police Chief Reneé Hall says protesters who marched on Margaret Hunt Hill Bridge will not be charged". Dallas Morning News. Retrieved June 6, 2020.
  17. "Santiago Calatrava: Margaret Hunt Hill Bridge". Architecture. Designboom. March 13, 2012. Archived from the original on November 22, 2012. Retrieved January 2, 2017.
  18. (1) "Twin Stayed Road Bridges Reggio Emilia". Milan, Italy: Redailli Tecna S.P.A. Retrieved January 2, 2017.
    (2) Rogers, Tim (June 22, 2011). "Is Our Calatrava Bridge a Copy of Reggio Emilia's?". FrontBurner. Dallas, Texas: D Magazine Partners, Inc. Retrieved January 2, 2017.
  19. "Three bridges in Reggio Emilia (Italy)" (PDF). European Steel Design Awards 2009. Brussels, Belgium: General Secretariat, European Convention for Constructional Steelwork. 2009. pp. 16–17. Archived from the original (PDF) on January 5, 2017. Retrieved January 5, 2017.

Further reading