K Line Northern Extension

Expanding fast, reliable rail service from the E Line north to Hollywood with new connections to four Metro rail lines and key destinations

Project Type
Rail
Current Phase
Planning
Estimated Project Completion
2047-2049

Metro is planning an underground extension of the K Line from the E Line north to Hollywood. The new rail service will connect with Metro’s B, C, D, and E Lines, serving six of LA’s busiest bus corridors and improving access to jobs, healthcare, and entertainment. Environmental review is underway.  

Read the Fact Sheet

Status

Metro is completing additional environmental analyses and engineering work in response to community feedback received during the Draft Environmental Impact Report (EIR) comment period, which closed September 20, 2024. 

In 2025, Metro prepared new technical reports and hosted meetings to share findings on tunnel safety, property considerations, and potential refinements in the Mid-City area. 

Community input collected throughout these engagements will inform Metro’s Winter 2025/26 staff recommendation to the Board of Directors on the selection of a Locally Preferred Alternative (LPA) and the next steps for the K Line Northern Extension Project. 

Project StoryMap

Metro’s updated Summer 2025 Story Map summarizes findings from the Mid-City Additional Alignment Analysis, Tunnel Safety, and Property Considerations reports that respond to community feedback raised during the Draft EIR period. 

New Published Reports

In August 2025, Metro released three technical reports: Mid-City Additional Alignment Analysis, Tunnel Safety, and Property Considerations. 

West Blvd Alignment Option

Following the recent community meetings, Metro published the West Boulevard Addendum to Mid-City Additional Alignment Analysis Report, which outlines potential refinements to the West Blvd alignment to further minimize potential tunnel easements in Wellington Square. 

Frequently Asked Questions

Find answers to common questions about the project. 

Recent Meetings

Stay informed with recent Metro KNE meeting highlights and project updates. 

Documents

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Frequently Asked Questions

What is the K Line Northern Extension Project?

The K Line Northern Extension (KNE) project would extend rail service from the Metro Expo/Crenshaw Station north to the Metro D Line (Purple) stations currently under construction on Wilshire Bl, the Metro B Line (Red) at Hollywood/Highland Station, and potentially to the Hollywood Bowl. It would serve many communities, including the LAX area, South Los Angeles, Inglewood, South Bay, the Crenshaw Corridor, Mid-City, Central Los Angeles, West Hollywood, and Hollywood, allowing for further connections to points north in the San Fernando Valley via the Metro B Line (Red). This project would improve connectivity with Metro’s rail and bus network by linking four Metro Rail lines and six of the top 10 busiest bus lines in LA County. KNE would also connect major destinations, such as population, activity, and employment centers. The project is located in the cities of Los Angeles and West Hollywood. 

What are the Project objectives?
The Project aims to: 
  • Leverage the high-volume east-west rail network to provide new north-south connections and close a regional network gap  
  • Increase the efficiency and convenience of transit trips by providing faster and more direct service 
  • Reduce how far and how often people need to drive (Vehicle Miles Traveled), which helps cut down on greenhouse gas emissions
  • Maximize access to jobs, housing, and opportunity 
  • Improve mobility for transit-dependent residents
What are the anticipated benefits of the K Line Northern Extension Project?
The project would close a gap in the regional rail network and, when fully built, would connect to the Metro Rail C, E, D, and B Lines, creating a rapid and reliable north/south transit option through the central part of LA County. The project would serve major employment and activity centers and expand access for many Equity Focus Communities (EFCs). By improving mobility options, the project will help to reduce auto dependence in the region, reducing air pollution, greenhouse gas emissions, and energy use. 
 
The KNE Project would: 
  • Expand mobility with a fast rail option: providing ~47,100 to 59,600 daily trips, 
  • Attract new transit riders: serving ~11,400 to 15,100 new riders daily, 
  • Reduce auto use: approximately 127,500-135,500 vehicle miles traveled daily, and 
  • Create jobs: estimated 8,300 to 10,100 jobs during construction
What stage is the project in?

Metro is leading the planning and environmental review for the project under the California Environmental Quality Act (CEQA). As part of this effort, Metro prepared and released a Draft Environmental Impact Report (EIR) for public review in July 2024. Metro hosted three public hearings and a community meeting during the 60-day public comment period and received approximately 1,300 public comments on various topics ranging from support for project and alignment preferences to questions about design, funding, schedule, and concerns on tunneling, property impacts, and construction disruptions

What studies has Metro completed since the Draft EIR?
During the Draft EIR comment period, Metro received a disproportionate number of concerns from residents of historic neighborhoods in Mid-City, specifically Wellington Square and Lafayette Square, where the Draft EIR proposed a single tunnel alignment that would travel below homes. Mid-City residents raised questions and concerns regarding the tunnel alignment, tunnel safety and potential building damage to older homes, as well as impacts on property rights and property values.
 
To address community questions and concerns regarding the Draft EIR alignment in Mid-City, the Metro Board authorized additional funding in October 2024 to conduct further analysis and engagement. In response, Metro prepared three technical reports: Mid-City Additional Alignment Analysis, Tunnel Safety, and Property Considerations to address community feedback on tunneling, property impacts, and potential refinements to the proposed alignments.
How is Metro engaging the community?

Throughout summer and fall 2025, Metro shared the findings from these reports through a series of in-person and virtual community meetings, providing opportunities for Mid-City residents to review technical materials, ask questions, and submit feedback. Community feedback collected during this engagement period will help inform the staff recommendation to the Metro Board on a preferred route and next steps for the project.

Who decides what route (alignment/option) will be selected? What information will be used to make this decision?

The Metro Board is the decision maker for all Metro projects and will be asked to select a locally preferred alternative, called the LPA. Metro staff will make a recommendation to the Metro Board based on multiple factors, including the environmental impact findings from the Draft EIR, project objectives, technical analysis, benefits, costs, and community support and feedback. 

How would the Project be funded?

The project has $2.24 billion from Measure M, a half-cent sales tax that funds several transportation projects/programs. The value of these funds increases with inflation. The funding identified in Measure M is not enough to construct the project. Measures M funds become available in 2041, which marks the earliest possible date for construction to begin barring additional funding sources.  Metro will continue working with project stakeholders to explore additional funding sources.

When would the Project open?

As noted above, Measure M funds become available for construction in 2041 with a goal of opening between 2047 and 2049. The construction schedule would vary based on the alignment selected by the Metro Board, funding availability, phasing, and the construction delivery approach. 

Could the Project be accelerated?
Local efforts are underway to explore and identify additional funding and financing strategies that could allow the Project to break ground before the Measure M date of 2041. Project acceleration would require approval by the Metro Board and actions taken per the Measure M Early Project Delivery Strategy. See information here:
Will the project be constructed in phases, and if so, what is the planned sequence of construction?
Given the project scale and length, the project would likely be constructed in sections, with an initial section connecting the K Line to the Metro D Line at Wilshire Bl. The total number of phases to reach the B Line in Hollywood and the optional Hollywood Bowl Station would be based on alignment length, cost, funding availability, and sufficient sites to launch tunnel boring machines (TBMs) that construct the underground tunnels for the rail line. 
 
Most Metro Rail projects are constructed in phases or sections. Each section is estimated to take between 10 to 12 years. There is possibility for multiple sections to be constructed concurrently based on funding availability and construction approach. A current example of this is the Metro D Line Extension between Koreatown and Westwood, which is an underground subway being constructed in three sections with staggered sections under construction. 
How does Metro notify the community about the Project?

Metro notifies the community about the Project, community events, and public meetings in a variety of methods depending on the upcoming meeting or update, which may include email, door-to-door flyers, direct mailing, Project website updates, bus ads, social media, Metro’s The Source blog and local news media. The best method to stay up to date on the project is to join our email distribution list by signing up here.

Will my comments be shared with decision-makers?

All comments and feedback on the project during the environmental phase will be summarized and published on Metro’s website to be available to the public and decision-makers alike. Metro will share community feedback received with the Metro Board at all project milestones. These comments will be reviewed by the Metro team to inform the project development process. 

How can I make my voice heard?
Community members can contact Metro at any time to share comments on project via: 
  • Email at klinenorth@metro.net 
  • Phone at (213) 418-3093 
  • Mail: LA Metro, c/o Roger Martin, One Gateway Plaza, Mail Stop 99-22-5, Los Angeles, CA  
How can I sign up for project updates?

Please sign up here or email klinenorth@metro.net to sign up for our newsletter. 

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Timeline

2041-2049

Anticipated Opening of KNE

Construction funding becomes available in 2041, with the extension anticipated to open for service between 2047 and 2049. 

2041-2049
2025/2026

Metro Board to Consider LPA

Metro Board to consider selection of Locally Preferred Alternative and next steps. 

2025/2026
2025

Metro Prepares New Technical Studies

Metro conducted additional outreach, prepared and published new technical studies to address community concerns from Mid-City residents raised during the Draft EIR comment period including: Mid-City additional alignment options, property considerations, and tunnel safety. Metro hosted community meetings in Summer/Fall to share findings and continued engaging with Mid-City residents to gather feedback.

2025
2024

Metro Releases Draft EIR

Metro released the Draft EIR for public review and held hearings and meetings, receiving more than 1,300 community comments. 

2024
2022

K Line Opens

The K Line opened, creating the foundation for its future northern extension.

2022
2021

Metro Launches Public Scoping

Metro launched the environmental review process with public scoping meetings to gather early community input. 

2021
2020

Metro Board Directs Staff to Prepare Draft EIR

Metro advanced planning studies with Advanced Alternatives Analysis (AAA) Screening Study, further refining evaluation of potential alignments for a northern extension. Metro Board directed staff to prepare a Draft Environmental Impact Report (EIR). 

2020
2018

Metro Prepares Feasibility/Alternatives Analysis (AA) Study

Metro prepared Feasibility/Alternatives Analysis (AA) Study, evaluating potential alignments for a northern extension of the K Line. 

2018
2016

Voters Approve Measure M Funding

Voters approved Measure M, dedicating $2.24 billion for the K Line Northern Extension.

2016
2014

Construction Begins on the Original K Line

Construction began on the original K Line (then called the Crenshaw/LAX Transit Corridor Project).

2014
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