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I-405 Sepulveda Pass Widening Project


The I-405 Sepulveda Pass Widening 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 Widening 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
March
March 22

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will conduct a soil stability test near the Getty View Trailhead running along the northbound I-405 freeway between Getty Center Dr and Skirball Center Dr. This work activity is being conducted to survey and monitor the stability of the soil for the future construction of a retaining wall along the I-405 Freeway. Night time work for this activity will require freeway lane closures and ramp closures to facilitate the safe use of excavation equipment.

Click here for Freeway Closures

March 18

As part of the I-405 Sepulveda Pass Widening Project and in preparation for the relocation of Sepulveda Bl to the east, the Contractor in conjunction with LADWP will relocate the overhead power lines on Sepulveda Bl between Montana Av and Sunset Bl. This activity requires street lane closures for conduit trenching and placement of DWP vaults.

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March 8

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the contractor will isolate the work zone from freeway traffic by placing concrete barriers (k-rail) in selected areas on the right hand shoulder of the I-405 Freeway from the Santa Monica Freeway (1-10) to the Ventura Freeway (US 101).

Click here for Freeway Closures
March 4

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will perform grinding and saw-cutting work on the right-hand shoulder of the I-405 Freeway between the I-10 and US-101 freeways. This night-time work activity is designed to shave and level out the highway road pavement as part of construction for the I-405 Sepulveda Pass Widening Project.

Click here for Freeway Closures

March 3

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will temporarily delineate traffic lanes on the southbound San Diego Freeway (I-405). This night time activity requires full freeway lane and ramp closures.

Click here for Freeway Closures
March 1

As part of the I-405 Sepulveda Pass Widening Project and in preparation for the relocation of Sepulveda Bl to the east, the Contractor in conjunction with LADWP will relocate the overhead power lines on Sepulveda Bl between Montana Av and Sunset Bl.

Click here for Freeway Closures

February
February 26

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will document the existing condition of the drainage system below the freeway. This night-time work activity will be performed on Wilshire Bl between Sepulveda Bl and Bonsall Av.

Click here for Freeway Closures

February 24

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will perform grinding and saw-cutting work on the right-hand shoulder of the I-405 Freeway between the I-10 and US-101 freeways. This night-time work activity is designed to shave and level out the highway road pavement as part of construction for the I-405 Sepulveda Pass Widening Project.

Click here for Freeway Closures
February 24

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will temporarily delineate traffic lanes on the southbound San Diego Freeway (I-405). This night time activity requires full freeway lane and ramp closures.

Click here for Freeway Closures

February 16

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the contractor will isolate the work zone from freeway traffic by placing concrete barriers (k-rail) in selected areas on the right hand shoulder of the I-405 Freeway from the Santa Monica Freeway (1-10) to the Ventura Freeway (US 101).

Click here for Freeway Closures

February 12

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will perform geophysical utility survey on streets running along the San Diego Freeway (I-405). This night time activity requires street lane closures to facilitate the safe use of potholing equipment.

Click here for Freeway Closures

February 10

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor will temporarily delineate traffic lanes on the San Diego Freeway (I-405).  This night time activity requires full freeway lane and ramp closures. 

Click here for Freeway Closures

February 1

As part of the pre-construction activities for the I-405 Sepulveda Pass Widening Project, the Contractor is required to ensure the drainage system along the freeway is clean and clear. Beginning the night of Monday, February 1, 2010, CCTV cameras will be used to document the existing condition of the drainage system on the freeway. Drains will be cleaned and the grates will be welded down.

Click here for Freeway Closures

 

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Lane Closures

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Freeway Closure Schedule

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I-405 Northbound

Schedule is subject to change

Activity (Click on activity for details)
Freeway Closure Segments
Anticipated Work Date/s
Anticipated Duration
K-rail placement - Northbound I-405 Partial Freeway closures I-10 Freeway to Santa Monica Bl TBA TBA

I-405 Southbound

Subject to change

Activity (Click on activity for details) Freeway Closure SegmentsAnticipated Work Date/s Anticipated Duration

Freeway Restriping - Southbound I-405 Full Freeway Closures

Santa Monica Bl to National Bl

TBD

Three Nights

Freeway Restriping - Southbound I-405 Full Freeway Closures

Sunset Bl to Santa Monica Bl

TBD

Two Nights

Freeway Restriping - Southbound I-405 Full Freeway Closures

Skirball Center Dr to Wilshire Bl

TBD

Two Nights

Freeway Restriping - Southbound I-405 Full Freeway Closures

Valley Vista Bl to Bel Air Crest Rd

TBD

Two Nights



Potential Service Delays due to I-405 Sepulveda Pass Widening Project

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 Widening 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.

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.



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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
Lorena Y. Hernandez - Acting 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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