Sixth Street Viaduct

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6th Street Viaduct
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Sixth Street Bridge
Coordinates Lua error in package.lua at line 80: module 'strict' not found.
Carries 6th Street/Whittier Boulevard
Crosses Metrolink tracks, Los Angeles River, Union Pacific Railroad tracks, Santa Ana Freeway, Golden State Freeway, several local streets
Locale Downtown and Boyle Heights areas of Los Angeles, California
Official name Sixth Street Bridge from the LA River
Other name(s) 6th Street Viaduct
Maintained by City of Los Angeles and California Department of Transportation (Caltrans)
ID number 53C-1880 (City of Los Angeles), 53-0595 (Caltrans)
Characteristics
Design Viaduct
Material Reinforced concrete and steel
Total length 3,500 feet (1,100 m)
Width 46 feet (14 m)
History
Opened 1932
Sixth Street Viaduct is located in California
Sixth Street Viaduct

The Sixth Street Viaduct is a viaduct bridge that connects the Arts District in Downtown Los Angeles with the Boyle Heights neighborhood. It spans the Los Angeles River, the Santa Ana Freeway (US 101), and the Golden State Freeway (I-5), as well as Metrolink and Union Pacific railroad tracks and several local streets. Built in 1932, the viaduct is composed of three independent structures: the reinforced concrete west segment, the central steel arch segment over the river, and the reinforced concrete east segment. In 1986, the Caltrans bridge survey found the 6th Street Viaduct eligible for inclusion in the National Register of Historic Places.[1]

Demolition of the bridge was scheduled to begin January 8, 2016[2], but the date was delayed by a few months for further demolition planning, which means the bridge will remain open until a new closing date is announced.[3]

Demolition and replacement

During the construction of the viaduct in the 1930s, an on-site plant was used to supply the concrete for construction. However, the quality of the concrete turned out to have a high alkali content and led to an alkali-silica reaction which creates cracks in the concrete and saps the strength of the structure. It is one of the only historic LA River bridges to suffer from ASR.

Estimates are that the current viaduct has a 70% probability of collapse due to a major earthquake within 50 years.[4][5]

The bridge will close January 3, 2016 and demolition is scheduled to begin January 8, 2016. An estimated 48,000 cubic yards of concrete, 1,245 tons of structural steel and 4,200 tons of rebar will be hauled away as construction begins on the replacement.[6] The new bridge designed by architect Michael Maltzan and the HNTB Design-Build team is set to be completed in 2018. City leaders are also looking into building parks and plazas around the newly built bridge.

Cultural depictions

The bridge has appeared in numerous films, television shows, music videos and video games since 1932.

Films

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Music videos

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References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ [[cite news|title=Sixth Street Bridge gets temporary reprieve from demolition|url=http://www.theeastsiderla.com/2016/01/sixth-street-bridge-gets-temporary-reprieve-from-demolition/%7Caccessdate=12 January 2016|publisher=The Eastsider LA|date=January 11, 2016}}
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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