Home > Projects & Programs > I-405 Sepulveda Pass ... > Overview


Skirball On-Ramps and Bridge Reconstruction
Status: Completion of the south side of Skirball Bridge expected end of 2013.
Wilshire Bl Ramps Reconstruction
Status: Extended closures for the Wilshire ramps are now over.
Sunset Bridge Ramp Reconstruction
Status: Widening of Church Ln Bridge expected to last eight months
Mulholland Dr Bridge Demolition & Reconstruction
Status: Mulholland Bridge completed December 2013.

The latest schedule for completing the I-405 Sepulveda Pass Improvements Project cites mid-2014 as the completion date. It is likely that the Wilshire Segment will open first, followed by the Mulholland Segment.

Because of the complex work remaining in the Sunset Segment (that segment runs from Constitution Av to the Getty Center ramps), we anticipate the Sunset Segment will be the last segment completed.

Here are our key milestones to reach for the remainder of 2013.

Key Milestones

Project Component Complete (%)
Bridges 100
On- and off-ramps 90
Retaining and sound walls 83
underpasses and structures 90
Utilities 100
Wilshire ramps 100

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 Fwys.
  • 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

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