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303:. This collapse resulted in the additional collapse of the intersecting southbound SR 14 to southbound I-5 overpass (as this connector bridge was directly beneath the 5–14 overpass). Both bridges fell directly onto the southbound I-5 truck bypass. There was damage to all structures involved, varying from minor cracking and splaying, to the loss of complete sections of bridges.
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soon spread from vehicle to vehicle, eventually encompassing the entire tunnel with flames shooting nearly 100 ft (30 m) outside the tunnel and burning at around 1,400 °F (760 °C).. Three people died—including a 38-year-old male truck driver and his 6-year-old male passenger—and
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Caltrans is currently carrying out environmental review of the I-5 HOV/Truck Lanes
Project. This project will widen I-5 from the Newhall Pass Interchange north to Parker Road with new HOV lanes and truck lanes. The new HOV and truck lanes would connect with the existing HOV and truck lanes of the
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On Monday, October 15, the southbound mainline lanes of I-5 were reopened at 1:00 a.m. The northbound mainlane lanes were reopened two hours later. The speed limit on the southbound lanes was lowered to 55 mph (89 km/h) to help with the flow due to heavier congestion than normal.
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farther north along I-5 to partially fail. It also caused the southbound SR 14 to southbound I-5 overpass to collapse directly onto the main I-5 freeway and the southbound I-5 truck bypass, nearly exactly as had happened in the 1971 Sylmar earthquake. The collapse also closed the
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In 2013, Caltrans completed an elevated HOV (high-occupancy vehicle) direct connector ramp, linking the recently completed I-5 HOV lanes to the existing SR 14 HOV lanes. This direct connector allows motorists a freeway-to-freeway transfer without exiting the carpool lane.
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In the weeks and months that followed, traffic was rerouted to San
Fernando Road through the pass as reconstruction efforts began. The interchange was partially reopened on July 8, and completed in 1995 with additional reinforcing on the overpass support columns.
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motorcycle officer
Clarence Wayne Dean, who, while reporting to work, fell from a partially collapsed bridge when he was unable to stop in time. The interchange was later dedicated the Clarence Wayne Dean Memorial Interchange in his honor.
410:(Caltrans) worked through the weekend of October 13 and 14 to clear out and install five shoring supports inside the tunnel. At 4:20 p.m. on October 14, Caltrans opened up the two northbound truck bypass lanes to all traffic.
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was placed on site with materials and workers to perform any needed repairs. During the repairs, the southbound I-5 truck lanes remained closed, while southbound trucks through the interchange were diverted onto the auto lanes.
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where it travels adjacent to the northbound truck bypass lanes. The tunnel is a 550 ft (170 m) long reinforced concrete box girder, built in 1975. It was last inspected in April 2007, and no problems were found.
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The southbound I-5 truck lanes were reopened on
Thursday, November 15, 2007. Security Paving of Oxnard performed the remaining repairs and made safety improvements to the tunnel which included the following:
270:. The bypass, signed as truck lanes, allows traffic to and from SR 14 to avoid the congested pass summit. These truck lanes extend south to the I-210 interchange, and have direct ramps to and from the
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Firefighters finished removing debris from the tunnel at 7:00 a.m. on
October 14. Inspectors found heavy damage to the tunnel walls under the north portal. They also found a lot of
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The interchange is extremely large, and consists of numerous flyover ramps and two tunnels. Portions of I-5 in the pass reach up to 21 lanes wide. The complex structure combines a
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As a result of the accident and ensuing fire, all lanes of I-5 between
Calgrove Boulevard and SR 14 were closed. In addition, the southbound onramps between
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officer
Clarence Wayne Dean, who was killed when he was unable to stop before going over a collapsed section of the interchange immediately following the
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Improved tunnel lighting for both sides of the tunnel. This lighting is set to adjust depending on the weather conditions outside the tunnel.
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The
January 17, 1994, Northridge earthquake caused the southbound SR 14 to northbound I-5 connector to collapse and a bridge crossing
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A total collapse of the southbound I-5 to northbound SR 14 overpass occurred as a result of the
February 9, 1971
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227:, as the interchange is commonly referred to as by locals, is the northernmost of five freeway interchanges on
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611:"The Earthquake: In City of Motorcycle-Cop Mystique, an Officer, and Quake Victim, Is Laid to Rest"
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and
Calgrove Boulevard were closed along with the northbound approaches from SR 14 and I-210.
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within a 10-mile (16 km) stretch. From south to north, the freeways that interchange with
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Historical Highways of Central and Southern California: US 6 / US 99 Junction - Tunnel Station
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In addition, the speed limit on the tunnel was lowered back to 45 mph (72 km/h).
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Emergency funding for the repairs was authorized for the damaged tunnel. Contractor
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Newhall Pass Interchange. This project will cost approximately $ 2.8 billion.
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were taken at the interchange after it collapsed from the 1971 Sylmar earthquake.
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Effects of Catastrophic Events on Transportation System Management and Operations
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The interchange was rebuilt in 1973, with additional steel rebar reinforcement.
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212:(SR 14, Antelope Valley Freeway). It is officially named in the memory of
724:"Los Angeles News, Local News, Weather, Traffic, Entertainment, Breaking News"
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on October 12, 2007, two trucks collided in the northernmost of two two-lane
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Thirty commercial vehicles and one passenger vehicle were involved in the
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The collapse of the southbound SR 14 ramp caused the death of
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Remains of the SR 14 ramp following its collapse in 1994
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Draft Environmental Impact Report/ Environmental Assessment
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View from Sylmar of the southern portion of the interchange
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The interchange appears briefly in the 2015 disaster film
274:. The bypass is the original four-lane freeway, built as
690:(Press release). California Department of Transportation
479:, where it collapses yet again during a 9.1 earthquake.
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The cover photos for the Doobie Brothers' 1973 album
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Highway interchange in Los Angeles County, California
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Burned buildings and structures in the United States
553:"Historical Photos of the US 99 / US 6 Interchange"
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427:New pavement for the tunnel walls and the roadway.
295:Aerial view of the collapsed freeway ramps in 1971
781:(Report). California Department of Transportation
779:I-5 HOV/Truck Lanes Project SR-14 to Parker Road
8:
259:, in Sylmar, and ultimately the SR 14.
799:: CS1 maint: numeric names: authors list (
755:: CS1 maint: numeric names: authors list (
708:: CS1 maint: numeric names: authors list (
609:Ayres Jr., B. Drummond (January 25, 1994).
578:ITS Joint Program Office (April 22, 2002).
745:. California Department of Transportation.
669:. California Department of Transportation.
388:ten people were injured, none critically.
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857:Transportation in the San Fernando Valley
847:Bridges in Los Angeles County, California
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170:Clarence Wayne Dean Memorial Interchange
41:Clarence Wayne Dean Memorial Interchange
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549:California Department of Transportation
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408:California Department of Transportation
887:Transportation disasters in California
877:Bridge disasters caused by earthquakes
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882:Bridge disasters in the United States
371:roadway under the eight mainlanes of
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937:Road incidents in the United States
917:2007 disasters in the United States
902:1994 disasters in the United States
892:1971 disasters in the United States
637:"Metrolink Fares Set to Increase".
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584:U.S. Department of Transportation
208:(I-5, Golden State Freeway) with
667:"California Highway Information"
665:Division of Traffic Operations.
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491:The interchange features in the
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842:Road interchanges in California
683:District 7 (October 14, 2007).
557:Historical Tour of US 6 / US 99
942:Concrete bridges in California
822:I-5 Tunnel Construction Photos
210:California State Route 14
1:
685:"I-5 Accident Closure Update"
344:Los Angeles Police Department
188:. It is south of the city of
837:Southern California freeways
770:District 7 (December 2008).
451:HOV Direct Connector Project
268:collector–distributor bypass
907:Transport disasters in 1994
897:Transport disasters in 1971
530:California Roads portal
335:, which began operation to
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460:I-5 HOV/Truck Lane Project
218:1994 Northridge earthquake
867:Santa Clarita, California
367:that take the southbound
264:directional T-interchange
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166:Newhall Pass interchange
36:Newhall Pass Interchange
18:Newhall Pass Interchange
728:NBC Southern California
359:Around 11:00 p.m.
255:also in Mission Hills,
862:Santa Susana Mountains
640:Los Angeles Daily News
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97:34.33500°N 118.50833°W
52:View from truck bypass
743:"District 7 Projects"
518:California portal
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333:Antelope Valley Line
102:34.33500; -118.50833
927:Fires in California
922:2007 road incidents
912:1994 road incidents
872:Sylmar, Los Angeles
182:Southern California
174:highway interchange
93: /
704:cite press release
616:The New York Times
485:The Captain and Me
469:In popular culture
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276:U.S. Route 99
214:Los Angeles Police
559:. Michael Ballard
381:traffic collision
324:San Fernando Road
301:Sylmar earthquake
206:Interstate 5
196:neighborhoods of
192:and north of the
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16:(Redirected from
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947:Tunnel disasters
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643:. July 13, 1994.
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586:. Archived from
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495:music video for
355:2007 tunnel fire
272:Foothill Freeway
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852:Interstate 5
785:December 26,
783:. Retrieved
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741:District 7.
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694:December 26,
692:. Retrieved
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622:December 26,
620:. Retrieved
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594:December 26,
592:. Retrieved
588:the original
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563:February 20,
561:. Retrieved
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369:truck bypass
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339:soon after.
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178:Newhall Pass
169:
168:(officially
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148:Construction
795:cite report
476:San Andreas
416:C. C. Myers
393:SR 126
245:SR 118
237:SR 170
194:Los Angeles
100: /
88:118°30′30″W
75:Coordinates
831:Categories
582:(Report).
536:References
241:Sun Valley
225:5-14 Split
133:SR 14
85:34°20′06″N
551:(1963) .
337:Lancaster
329:Metrolink
282:Incidents
235:include:
751:cite web
654:LA Times
505:See also
438:Projects
400:spalling
157:Caltrans
115:junction
113:Roads at
62:Location
365:tunnels
266:with a
172:) is a
493:P.O.D.
202:Sylmar
775:(PDF)
688:(PDF)
498:Alive
404:rebar
257:I-210
253:I-405
142:I-210
801:link
787:2011
757:link
710:link
696:2011
624:2011
596:2011
565:2012
385:fire
223:The
200:and
164:The
373:I-5
361:PDT
331:'s
247:in
239:in
233:I-5
229:I-5
180:in
176:at
124:I-5
833::
797:}}
793:{{
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702:{{
675:^
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567:.
20:)
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