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The I-105 corridor experiences heavy demand during peak commute hours that exceeds its capacity. As a result, Metro and the California Department of Transportation (Caltrans) are preparing engineering studies and an Environmental Document to study the possible implementation of ExpressLanes along I-105 between I-405 and I-605. The project will also study the I-105 west of the I-405 to Sepulveda Bl and east of the I-605 to Studebaker Rd to identify potential signage locations and access points into the ExpressLanes.

This corridor traverses the cities of El Segundo, Inglewood, Hawthorne, Los Angeles, Lynwood, South Gate, Paramount, Downey, Norwalk, and unincorporated areas of Los Angeles County.


In 2015, Caltrans completed a Project Study Report/ Project Development Support (PSR/PDS) for the I-105 corridor to assess potential improvements. The PSR/PDS identified four alternatives including a no build, conversion of the existing High Occupancy Vehicle (HOV) lane into ExpressLanes, and the addition of a second ExpressLane in each direction.

In January 2017, the ExpressLanes Strategic Plan was presented to the Metro Board. The Strategic Plan identified three tiers of ExpressLanes projects, with Tier 1 projects showing the highest potential benefits. Tier 1 projects include the I-105, sections of the I-405 and I-605, and extensions of the existing I-10 and I-110 ExpressLanes. The PSR/PDS and ExpressLanes Strategic Plan can be found in the Reports tab.

The I-105 ExpressLanes are included in Measure M, the local sales tax passed by Los Angeles County voters in 2016. Measure M provides $175 million for this project.

Public Scoping Meetings

Metro and Caltrans are beginning to prepare the Environmental Impact Report/Environmental Assessment to evaluate the anticipated environmental effects of this project pursuant to the California Environmental Quality Act and the National Environmental Policy Act.

As part of this effort, public scoping meetings will be held to provide information on the project and the public an opportunity to provide input. The scoping meetings will be held on:

Public Scoping Meeting #1
Wednesday, March 21, 2018, 6PM- 8PM
Lennox Park:10828 Condon Av, Lennox, CA 90304

Public Scoping Meeting #2
Thursday, March 22, 2018, 6PM - 8PM The Watts Labor Community Action Committee (WLCAC) 10950 S Central Av Los Angeles, CA 90059
Live webcast*

Public Scoping Meeting #3
Saturday, March 24, 2018, 9:30AM – 11:30AM
Paramount Community Center
14400 Paramount Bl, Paramount, CA 90723

The scoping period will begin on Wednesday, March 7, 2018 and close on Monday, April 16, 2018. If you would like to submit a comment, please click on the Contact Us tab and click on the Comment Form link. Comments must be received by 5pm on Monday, April 16, 2018.

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