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I-405 Sepulveda Pass Improvements Project


Overview

The I-405 Sepulveda Pass Improvements Project will add a 10-mile HOV lane and improve supporting infrastructure such as ramps, bridges and sound walls on the San Diego Fwy. (I-405); while widening lanes from the Santa Monica Fwy. (I-10) to the Ventura Fwy. (US-101).

This project will reduce existing and forecasted traffic congestion on the I-405 and enhance traffic operations by adding freeway capacity in an area that experiences heavy congestion. In addition to these modifications, the project will improve both existing and future mobility and enhance safety throughout the corridor.

Project benefits include a decrease in commuter time, reduction in air pollution, and promotion of ridesharing.

The I-405 Sepulveda Pass Improvements Project will:

  • Add a 10-mile HOV lane on the northbound I-405 between the I-10 and US-101 Freeways

  • Remove and replace the Skirball Center Dr, Sunset Bl and Mulholland Dr bridges

  • Realign 27 on and off-ramps

  • Widen 13 existing underpasses and structures

  • Construct approximately 18 miles of retaining wall and sound wall



Construction Notices

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Date Notice Brief Detail

August 23

On Monday, August 23, 2010, the contractor is anticipated to begin constructing a temporary sidewalk along the south side of Skirball Bridge. This will maintain pedestrian access throughout the upcoming demolition and reconstruction of the of the bridge’s north side. The right hand lane in the eastbound direction along Skirball Bridge will be closed for approximately four weeks to conduct this work. K-rail (concrete barriers) will be placed along the bridge to separate traffic from the work zone. This temporary sidewalk construction is part of early preparation work activities to support the Skirball Bridge demolition and reconstruction activity.

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August 17

Exxon Mobil will begin the temporary relocation of the utility line on the Caltrans right of way. This activity requires the nightly closure of the Sunset Bl-NB 405 on ramp.

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August 10

As part of the I-405 Project, Southern California Gas company (SCG) will relocate a gas line to Thurston Circle. This work is necessary for the construction of a wall on the east side of Sepulveda Bl.

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July 26

The Contractor will begin setting K-rail, clearing trees and plants, widening the freeway and constructing a sound wall east of the I-405 Freeway, from Ohio Av to Wilshire Bl. Daytime and nighttime work is anticipated to begin Monday, July 26, 2010, for approximately seven months. This activity will take place from 9pm to 5am and 7am to 3:30pm.

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July 19

The Contractor will begin clearing trees and plants, excavating bridge footings and drilling pile, north and south of Santa Monica Bl, east and west of the I-405 freeway, starting July 19, 2010.

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July 15

The Contractor will begin clearing trees and grubbing plans, removing soil, and building a retaining wall west of the southbound I-405 freeway, north of Constitution Av. starting July 15, 2010.

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July 12

The Contractor will begin clearing trees and plants, excavating soil and erecting a retaining wall east of the northbound I-405 Freeway, from Wilshire Bl to Montana Av. Night time work is anticipated to begin Monday, July 12, 2010, for approximately five months. This activity will take place from 9pm to 6am.

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Construction Notices

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Lane Closures

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Closures

Typical Freeway Closure Schedule

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City Streets

Activity Closure Type Closure Opening
Day work Lane 9 am 3 pm
Night work Lane 9 pm 6 am

Southbound I-405

Activity Closure Type Closure Opening
Mainline Complete Midnight 6 am
Mainline Lane 7 pm 6 am
Mainline On-ramps 7 pm 6 am
Mainline Off-ramps 7 pm 6 am
Freeway connector Southbound I-405 to US 10 9 pm 6 am
Freeway connector US 10 to southbound I-405 10 pm 6 am
Freeway connector Southbound I-405 to US 101 7 pm 6 am
Freeway connector US 101 to southbound I-405 10 pm 6 am

Northbound I-405

Activity Closure Type Closure Opening
Mainline Complete Midnight 6 am
Mainline Lane 7 pm 6 am
Mainline On-ramps 7 pm 6 am
Mainline Off-ramps 7 pm 6 am
Freeway connector Northbound I-405 to US 10 10 pm 6 am
Freeway connector US 10 to northbound I-405 9 pm 6 am
Freeway connector Northbound I-405 to US 101 9 pm 6 am
Freeway connector US 101 to northbound I-405 10 pm 6 am

Although there may be some variance in these times, the majority of closures occur during these times. The contractor may close a freeway ramp during day hours, although this would be a rare occurrence.



Service Delays

Line(s): 2 (Rte 302)

In effect: Monday, May 10, 2010, until further notice (approximately one year)

Location: Church Ln at Sunset Bl and Keil Av Montana Av and Sepulveda Bl

Eastbound: Regular route to Sunset Bl and Barrington Av then continue via Sunset Bl to (L) Church Ln, (R) Sepulveda Bl, (L) Montana Av/Gayley Av and regular route

Westbound: Regular route to Le Conte Av and Gayley Av, then continue via Gayley Av to (R) Veteran Av, (L) Sunset Bl, (R) Sepulveda Way, (R) Sepulveda Bl, (L) Church Ln and regular route


In effect: Monday, May 10, 2010 until further notice (approximately one year)

Location: Between Sunset/Church Ln and Montana/Veteran

Eastbound: Regular route to Sunset Bl and Barrington Av then continue via Sunset Bl

Only: to (L) Church Ln, (R) Sepulveda Bl, (L) Montana Av/Gayley Av and regular route.

Westbound: Regular route to Montana Av and Veteran Ave then (R) Veteran Av, (L) Sunset to Sunset/Church and regular route.

Effective: Mid-March 2010

Please be aware that patrons on Lines 2-302, 4, 20, 704, 720, 761 and 920 will experience service delays and minor reroutes in service effective mid-March and lasting approximately three years due to construction on the I-405 Sepulveda Pass Improvements Project. Construction will impact bus service travelling along the freeway and through the construction zones between National Boulevard and Ventura Boulevard. The project includes the following features:

  • Add a 10-mile HOV lane on the northbound I-405 between the I-10 and US-101 Freeways
  • Remove and replace the Skirball Center Dr, Sunset Bl and Mulholland Dr bridges
  • Realign 27 on and off-ramps
  • Widen 13 existing underpasses and structures
  • Construct approximately 18 miles of retaining wall and sound wall.

Please visit, metro.net/around/service-advisories/ for Bus Operations Service Updates.

Please visit these websites for information on transportation services provided in the Sepulveda Pass by agencies other than Metro:

Patrons will be impacted by freeway ramp closures, reductions in lane widths, soundwall construction and full freeway closure. Patrons should adjust their trip times along impacted corridors accordingly. For detour information, please visit www.metro.net/405.

Please accept our apologies for any inconvenience that you may experience during construction.




  • <p>Even though K-Rail has been used on California highways since the early 1970s, moving the 20-foot-long pieces to the correct place, as the photographs below describe, still requires care and teamwork. A worker monitors the barrier clamp (or barrier picker) as it holds a temporary railing.</p>
    Laying K-Rail (6)
  • <p>Workers assemble the pile-driving hammer in the lead (its housing) to prepare for pile-driving operations.</p>
    Wilshire Bl Pile Driving (7)
  • <p>Looking southeast, this views shows two water trucks on Sunset Bridge and the closure of the northbound lanes. The section of the bridge over the northbound I-405 was demolished first. Demolition of the span over southbound lanes began Sunday, July 25. All demolition occurs at night to limit restrictions on the highway&rsquo;s capacity.</p>
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<div>
<p>Photograph Courtesy of Metro. &copy; 2010 LACMTA</p>
</div>
</div>
    Sunset Bridge Demolition & Reconstruction (11)


View More Galleries
Laying K-Rail-01
 

Laying K-Rail-02
 

Laying K-Rail-03
 

Laying K-Rail-04
 

Laying K-Rail-05
 

Laying K-Rail-06
 

Wilshire Bl Pile Driving 01
 

Wilshire Bl Pile Driving 02
 

Wilshire Bl Pile Driving 03
 

Wilshire Bl Pile Driving 04
 

Wilshire Bl Pile Driving 05
 

Wilshire Bl Pile Driving 06
 

Wilshire Bl Pile Driving 07
 

Sunset Bridge Demolition & Reconstruction 01
 

Sunset Bridge Demolition & Reconstruction 02
 

Sunset Bridge Demolition & Reconstruction 03
 

Sunset Bridge Demolition & Reconstruction 04
 

Sunset Bridge Demolition & Reconstruction 05
 

Sunset Bridge Demolition & Reconstruction 06
 

Sunset Bridge Demolition & Reconstruction 07
 

Sunset Bridge Demolition & Reconstruction 08
 

Sunset Bridge Demolition & Reconstruction 09
 

Sunset Bridge Demolition & Reconstruction 10
 

Sunset Bridge Demolition & Reconstruction 11
 

Follow This Project:
  • Get e-mail updates
  • Get updates at facebook.com/405project
  • Get updates at twitter.com/I_405
  • Get updates at local.nixle.com/i-405-sepulveda-pass-improvements-project
  • Get traffic updates at go511.com

Did You Know?

Community Relations Team:
Kasey Shuda - Wilshire Segment (National Bl to Waterford St)
Olga N. Arroyo - Sunset Segment (Waterford St to Sepulveda Bl)
Ron Macias - Mulholland Segment (Sepulveda Bl to Ventura Bl)
Ned Racine - New Media
Devon Cichoski - Manager
Yvette ZR Rapose - Manager, Capital Projects

Contact Information:
Metro Community Relations 
6060 Center Dr, 2nd Fl
Los Angeles, CA 90045-2952

Tel: 213.922.3665
I405@metro.net
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