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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

July 29

The Contractor will continue the demolition of the Sunset Bridge for one additional night with the removal of the center columns. This activity is necessary to facilitate the reconstruction of the Sunset Bridge.

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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 23

The Contractor will begin demolition and reconstruction of the Sunset Bridge. The demolition and reconstruction will be phased, with the southern half of the overcrossing being demolished and reconstructed first. The demolition will take place during nine nights, followed by a ten-month reconstruction period. This phase will be followed by the demolition and reconstruction of the northern half of the bridge.

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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 19

Beginning the night of Monday, July 19, 2010, the contractor will conduct minor clearing and grubbing operations at various locations along the southbound portion of the I-405 Freeway, from the south end of the Sherman Oaks area to the Getty Center Dr ramps.

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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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July 07

As part of the ongoing relocation of the overhead power lines on Sepulveda Bl between Montana Av and Sunset Bl, the contractor will start working nights in an effort to expedite the work. This activity requires street lane closures for conduit trenching and placement of DWP vaults.

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July 07

The contractor will resume clearing and grubbing operations and grade the area along the northbound portions of the I-405 freeway on Wednesday July 7, 2010, for approximately three more weeks, in the vicinity of the Sherman Oaks area just north of the Mulholland Bridge and the Getty Trail Head. The clearing and grubbing activity, which is the removal of trees and vegetation, and the grading of the work area is an early stage of preparation work to support upcoming construction activities along the I-405 freeway.

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June 29

Beginning on the night of Tuesday, June 29, 2010, the contractor will conduct clearing and grubbing operations and grade the area along the southbound portion of the I-405 Freeway in Sherman Oaks. The clearing and grubbing activity, which is the removal of trees and vegetation, and the grading of the work area is an early stage of preparation work to support upcoming construction of a sound wall and freeway widening along the southbound I-405 Freeway. These early preparation work operations are anticipated to last approximately seven weeks and will be conducted during the day and night time hours.

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June 29

The Contractor will begin excavating and demolishing a Gross Solid Removal Device (GSRD), west of the I-405 Freeway in the north Wilshire loop. Day time work is anticipated to begin Tuesday, June 29, 2010, for approximately two days. This activity will take place from 7am to 3:30pm. A lane closure on Wilshire Bl may be necessary at night for loading equipment.

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June 28

The Contractor will begin driving steel pile at three abutments, using a crane-mounted hammer, west of the I-405 Freeway in the north and south Wilshire Bl loops. Daytime work is anticipated to begin Monday, June 28, 2010, for approximately nine days. This activity will take place from 7am to 3:30pm.

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June 23

The Contractor will conduct a site investigation near the Skirball Center Dr ramps. In addition, light pole supports and construction materials will be placed at the proposed construction yard located between Sepulveda Bl and the southbound Skirball Center Dr ramps. This nighttime work will begin Wednesday, June 23, and last for approximately three nights. The operation will require the closure of the southbound Skirball Center Dr on- and off-ramps between the hours of 9pm to 6am.

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June 23

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. Nighttime work is anticipated to begin Wednesday, June 23, 2010, and continue for approximately five months. This activity will take place from 9pm to 6am.

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June 21

The contractor will conduct a full closure of Bronwood Av at Sepulveda Bl to perform vault vent work.

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June 21

As part of the utility relocation work on Sepulveda Bl, between Montana Av and Sunset Bl, the contractor will implement the closure of the Montana Av off-ramp in an effort to minimize traffic impacts around the work zone.

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June 18

The Contractor will begin clearing trees, grubbing plans and removing soil east of the northbound I-405 Freeway, along Cotner Av, starting June 18, 2010. Operations will be contained in the Caltrans right-of-way.

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June 16

The contractor will begin construction of two retaining walls along the northbound I-405 Freeway near the Getty Trail Head. Construction of the walls will begin on Wednesday, June 16, 2010, and last for approximately one year. This operation will be performed during the daytime and nighttime hours. The contractor will utilize concrete trucks, air compressors, manlifts, and concrete pumps in order to construct the retaining walls.

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June 15

The contractor will resume clearing and grubbing operations and grade the area along the northbound portions of the I-405 Freeway beginning Tuesday June 15, 2010, and continuing for approximately three more weeks, in the vicinity of the Sherman Oaks area, just north of the Mulholland Bridge and the Getty Trail Head. The clearing and grubbing activity, which is the removal of trees and vegetation, and the grading of the work area is an early stage of preparation work to support upcoming construction activities along the I-405 Freeway.

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June 14

In preparation for the demolition and reconstruction of the Sunset Bridge, the contractor will temporarily widen freeway lanes to provide room for a construction zone around the bridge.

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June 14

The contractor will set-up and operate a crusher site at the Getty Trail Head to recycle and prepare materials for various construction activities. The contractor anticipates beginning the set-up of the crusher site on Tuesday, June 15, 2010, and will conduct operations at the crusher site for approximately 24 months. The contractor will operate heavy construction equipment such as excavators, loaders, off-road haul trucks, dozers, and crusher plant equipment.

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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.



Potential Service Delays

Line(s): 2 (Rte 302)

In effect: Friday, July 23, 2010 through Thursday, July 29, 2010, from 9pm. to 6am each night

Location: Sunset Bl at Church Ln and Thurston Av, Sepulveda Bl at Sepulveda Way and Montana Av

Eastbound: Regular route to Sunset Bl and Barrington Av then continue via Sunset Bl to (L) Church Ln, (R) Sepulveda Bl, (L) Sepulveda Way, (L) Sunset Bl (R) Veteran Av (L) Gayley Av and regular route Traffic officers will assist all traffic making left turn from Sepulveda Way to Sunset Bl.

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.


 

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.



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-improvemnts-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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Construction closures delivered daily.

July 30: On Sunday, August 1, Caltrans will close northbound connector to eastbound US 101, from 6am to 11am for maintenance.
Fri, Jul 30, 05:27 PM PDT


July 30: Tomorrow Sepulveda Bl will have one lane open in each direction, Montana to Bronwood, 9am to 3pm, for DWP duct bank work.
Fri, Jul 30, 01:00 PM PDT


July 30: Northbound on-ramp from Santa Monica Bl closed tonight, 8pm to noon, for soil removal.
Fri, Jul 30, 12:58 PM PDT


July 30: Number 5 northbound lane closed tonight, 10pm to 8am, Santa Monica Bl to Wilshire Bl.
Fri, Jul 30, 12:55 PM PDT


July 30: Number 4, 5 northbound lanes closed tonight, 11pm to 7am, Wilshire Bl to Montana.
Fri, Jul 30, 12:53 PM PDT


July 30: Northbound on-ramp from eastbound Wilshire Bl closed tonight, 8pm to 11am.
Fri, Jul 30, 12:52 PM PDT


July 30: Northbound on-ramp from westbound Wilshire Bl closed tonight, 10pm to 10am.
Fri, Jul 30, 12:50 PM PDT


July 30: Northbound off-ramp from westbound Wilshire Bl closed tonight, 9pm to 11am.
Fri, Jul 30, 12:49 PM PDT


July 30: Northbound off-ramp to eastbound Wilshire Bl closed tonight from 8pm to 8am.
Fri, Jul 30, 12:47 PM PDT


July 30: Northbound number 5 lane closed, 11pm to 9am, Getty/Sepulveda to Ventura Bl, for soil removal.
Fri, Jul 30, 12:34 PM PDT


July 30: Number 4, 5 northbound lanes closed, midnight to 8am, from Getty/Sepulveda to Ventura Bl, for soil removal.
Fri, Jul 30, 12:32 PM PDT


July 30: Northbound on-ramp from Skirball Center Dr closed, 7pm to 8am, for soil removal.
Fri, Jul 30, 12:30 PM PDT


July 30: Northbound off-ramp to Skirball Center Dr closed, 7pm to 8am, for soil removal.
Fri, Jul 30, 12:27 PM PDT


July 30: Southbound on-ramp from Santa Monica Bl closed, 11pm to 8am, for soil removal.
Fri, Jul 30, 12:26 PM PDT


July 30: Number 5 southbound lane closed, 9pm to 8am, Wilshire Bl to Santa Monica Bl, for soil removal
Fri, Jul 30, 12:19 PM PDT


July 30: Number 4, 5 southbound lanes closed, 10pm to 7am, Vallley Vista to Skirball Center Dr, for soil removal.
Fri, Jul 30, 12:18 PM PDT


July 30: Number 4 southbound lane closed, 10pm to 7am, Skirball Center Dr to Mountain Gate, for soil removal.
Fri, Jul 30, 12:15 PM PDT


July 30: Number 3, 4 southbound lanes closed from Skirball Center Dr to Mountain Gate, midnight to 6am, for soil removal.
Fri, Jul 30, 12:14 PM PDT


July 30: Southbound off-ramp to Skirball Center Dr closed tonight, 7pm to 8am, for soil removal.
Fri, Jul 30, 12:02 PM PDT



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