Golden State Freeway: Difference between revisions
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{{Infobox road |
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|state=CA |
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|type=I |
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|route=5 |
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|highway_name=Golden State Freeway |
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|maint=[[California Department of Transportation|Caltrans]] |
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|map=Golden State Freeway.svg |
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|direction_a=South |
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|terminus_a={{Jct|state=CA|I|10|US|101}} in [[Los Angeles, California|Los Angeles]] |
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|junction={{Jct|state=CA|SR|134}} near [[Glendale, California|Glendale]]<br>{{Jct|state=CA|SR|14}} near [[Santa Clarita, California|Santa Clarita]] |
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|direction_b=North |
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|terminus_b={{Jct|state=CA|SR|99}} in [[Lebec, California|Lebec]] |
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}} |
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The '''Golden State Freeway''' is a north-south [[freeway]] running through [[Kern County, California|Kern County]] and [[Los Angeles County, California]]. Originally built as [[U.S. Route 99 (California)|U.S. Route 99]], it was re-signed as [[Interstate 5 (California)|Interstate 5]] in 1964. |
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== Route description == |
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I-5 and [[California State Route 99|State Route 99]] converge near the southernmost point of the [[San Joaquin Valley]], approximately 30 miles (50 km) south of [[Bakersfield, California|Bakersfield]]. At this point, the Golden State Freeway begins. It travels southward through the valley until sharply rising to cross the [[Tejon Pass]] through the [[Tehachapi Mountains]], continuing through [[Grapevine Canyon, California|Grapevine Canyon]]. [[Path 26]] [[electric power transmission|power line]]s, a southern extension of [[Path 15]], follow the freeway across the pass and onto [[Pyramid Lake (California)|Pyramid Lake]]. At one point along the treacherous route near [[Castaic, California|Castaic]], the separated northbound and southbound lanes actually invert, with the southbound lanes being to the east of the northbound ones. The freeway continues into the [[Santa Clarita Valley]], and then crosses [[Newhall Pass]] through the [[Santa Susana Mountains]] to enter the [[San Fernando Valley]], and in turn, [[Los Angeles, California|Los Angeles]]. Several major freeways split from the Golden State Freeway within a few miles of this point: the [[Interstate 210 (California)|Foothill Freeway (I-210)]] near [[Sylmar, Los Angeles, California|Sylmar]], the [[San Diego Freeway|San Diego Freeway (I-405)]] in [[Mission Hills, Los Angeles, California|Mission Hills]], and the [[Hollywood Freeway|Hollywood Freeway (US 101 & SR-170)]] in [[Sun Valley, Los Angeles, California|Sun Valley]]. Traveling through the cities of [[Burbank, California|Burbank]] and [[Glendale, California|Glendale]], it closely follows the [[Los Angeles River]] as it skirts the [[Hollywood Hills]]. It ends at the [[East Los Angeles Interchange]] in [[Boyle Heights, Los Angeles, California|Boyle Heights]]; I-5 continues thereafter as the [[Santa Ana Freeway]]. |
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While the former surface street portions of State Route 99 are often named the '''Golden State Highway''' or '''Golden State Avenue''', Highway 99 itself is not called the Golden State Freeway. |
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==Legal definition== |
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The Golden State Freeway is Route 5 from the [[East Los Angeles Interchange|5/10/60/101 Junction]] to Route 14, as named by the Metropolitan Transportation Engineering Board on [[February 28]] [[1958]].<ref>{{cite book | url=http://www.dot.ca.gov/hq/tsip/hseb/products/Named_Freeways.pdf | title=2007 Named Freeways, Highways, Structures and Other Appurtenances in California | publisher=[[California Department of Transportation|Caltrans]] | pages=60 | accessdate=2007-03-28}}</ref> Note that the segment from [[California State Route 14|State Route 14]] to Highway 99 is still legally unofficial. |
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== Earthquakes and the Golden State Freeway == |
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[[Image:Goldenstatefreeway.jpg|250px|right|thumb|The Golden State Freeway at rush hour in the [[San Fernando Valley]]]] |
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On [[February 9]], [[1971]], the [[Sylmar earthquake]] destroyed a portion of the Golden State Freeway, including its interchange (then under construction) with the [[Antelope Valley Freeway]], between the Santa Clarita and San Fernando Valleys. It was soon rebuilt with greater seismic reinforcement, but nevertheless sustained heavy damage in the [[January 17]], [[1994 Northridge earthquake]] (and again had to be rebuilt). |
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The risk of earthquake damage to the freeway remains high, as the Grapevine route crosses the notorious [[San Andreas Fault]]. The risk along this route is such that the proposed [[high-speed rail]] corridor between Los Angeles and San Francisco, originally planned to be built within the Golden State Freeway's alignment, will instead veer east into the [[Antelope Valley]], going through the cities of [[Palmdale, California|Palmdale]] and [[Lancaster, California|Lancaster]] before traversing the more seismically stable [[Tehachapi Pass]] on its way to Bakersfield. Despite adding over 50 miles (80 km) of line to the railroad and 20 minutes to its travel time, the route change will save billions of dollars in construction costs, as Tehachapi Pass presents relatively few engineering challenges. |
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==Exit list== |
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==References== |
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{{reflist}} |
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{{LA Freeways}} |
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[[Category:Southern California freeways]] |
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[[Category:Interstate 5]] |
[[Category:Interstate 5]] |
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[[Category: |
[[Category:Interstate Highways in California]] |
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[[Category:Named freeways in California]] |
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[[Category:Roads in Los Angeles County, California]] |
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[[Category:Transportation in Los Angeles]] |
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Latest revision as of 10:13, 11 December 2022
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