I-405 Improvement Project

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  • I-405 Improvement Project (SR-73 to I-605)

    Project Contacts 1 of 2
    CHRIS BOUCLY

    888.400.8994
    NICOLETTE LA PIANA

    Community Relations Specialist

    888.400.8994

    Construction activities have begun and include restriping portions of the freeway and setting up concrete barrier on the outside of the freeway to protect work areas for activities such as tree removals and grading.

    Weather permitting, more significant construction activities, such as the first paving operations and bridge demolition activities, are anticipated to commence later this year.

    Please go to our interactive map to view current activities and closures – www.octa.net/405map

    Sign up for Text Alerts!

    Go to the Stay Informed tab to sign up to receive text alerts regarding the project’s closures and detours

    Bridges/Overcrossings

    • The local streets are laid out in a grid system and then the freeway was overlaid at a 45 degree angle. So at many of the interchanges, there is both a north-south bridge and an east-west bridge that needs to be replaced.
    • Most bridges are reconstructed using a two-stage approach. This means the bridges will not be shut down completely, but will be built one half at a time. The one-stage bridges, will be demolished and rebuilt all in one phase and completely closed to the public during their reconstruction.
    • The high number of bridge replacements is one of the project’s critical challenges. We have and will continue to spend a lot of time working with the cities along the freeway on the sequencing of bridge construction to minimize disruptions to the surrounding communities as best as possible.

    Purpose & Mission

    • Reduce congestion
    • Enhance operations
    • Move more vehicles and people, more quickly
    • Provide trip reliability
    • Minimize environmental impacts
    • Build project generally within existing footprint
    • Limit right-of-way acquisitions

    Significant Features

    • Two new lanes in each direction (one GP and one tolled express lane)
    • 18 bridge replacements plus new and widened bridges
    • Interchange reconfigurations
    • Merge lane improvements
    • Arterial street improvements
    • New and replaced soundwalls
    • New bike lanes and sidewalks

    405 Express Lanes

    For detailed information on the 405 Express Lanes, please go to the 405 Express Lanes tab or click here.

    Property Acquisition & Sound Walls

    As part of the project, there are some locations along the 16-miles of the project where we require temporary construction easements (TCE’s) or partial acquisitions.

    There are many sound walls that will be reconstructed or added as a part of the I-405 Improvement Project. Sound walls reduce the level of freeway noise, but do not eliminate it. Other soundwalls, such as replace-in-kind soundwalls, have been identified in the approved Noise Study Report (NSR) and amendments to the NSR available below:

    If you have further questions regarding these matters, please contact the Community Outreach Team, by calling 888.400.8994 or by emailing 405project@octa.net.

    Financing

    The OCGO project, Measure M, being constructed in cooperation with Caltrans, will be funded mostly through a combination of local, state and federal funds, with the express lanes portion of the Project paid for by those who choose to pay a toll and use the 405 Express Lanes. OCTA secured a $629 million federal Transportation Infrastructure Finance and Innovation Act (TIFIA) loan for the I-405 Improvement Project, which will pay for a major portion of the $1.9 billion worth of freeway improvements set to begin construction by early next year. Orange County taxpayers will save $300 million in interest costs thanks to the U.S. Department of Transportation TIFIA loan program.

    Project Partners & Stakeholders

    • OCTA
    • Caltrans
    • FHWA
    • The cities of: Costa Mesa, Fountain Valley, Westminster, Huntington Beach, Garden Grove, Long Beach, Los Alamitos, Seal Beach and the Community of Rossmoor
    • 40 separate utility owners
    • Orange County Flood Control
    • Union Pacific Railroad
    • Army Corps of Engineers
    • U.S. Navy
    • Emergency service providers such as Police and Fire

    Design-Build Contractor

    For information regarding employment and contracting opportunities please contact OC 405 Partners, comprised of OHL and Astaldi, directly by visiting their website http://www.oc405partners.com/.

    The Design-Build contract was awarded to OC 405 Partners, a joint venture team comprised of OHL and Astaldi, in November 2016.

    A joint venture is a new firm formed to achieve specific objectives of a partnership like temporary arrangement between two or more firms. Joint ventures are advantageous as a risk reducing mechanism and in pooling of resource for large projects. This type of partnership between multiple firms also occurred on the SR-22 Project (also a Design-Build project). One firm has a focus on design and one has a focus (or expertise) is construction. Due to this project’s massive scope and complexity, one firm is not capable of taking the entire project on by itself.

    During the procurement of the contract, OCTA was in search of design-build teams that are committed to safety, quality, have proven experience in administration, design and construction, will bring innovative design-build approaches to ensure timely completion, and are willing to partner with the OCTA and Caltrans for the mutual success of the project.

    Ongoing Community Outreach

    • The OCTA Community Outreach team is committed to educating the public on the project and responding to the community’s que and concerns. We are your resource for up-to-date information on the project.
    • Our teams outreach efforts include, but are not limited to:
    • Distributing important project information to the community via email, text alerts, Facebook and Twitter;
    • Sharing project detours and closures using WAZE and Google maps
    • Hosting neighborhood meetings;
    • Providing civic and community group presentations; and
    • Coordinating with city staff, elected officials, emergency service providers, as well as with the media.

    If you are interested in a presentation or briefing for your community or group, please email our team at 405project@octa.net.

    405 Express Lanes General Information

    The questions and answers below provide current information on the project to improve Interstate 405 (I-405) in Orange County from State Route 73 to Interstate 605.

    Why are improvements needed on I-405?
    The I-405 freeway experiences heavy traffic congestion and conditions are expected to worsen. Built in the 1960s, the freeway carries between 257,000 and 370,000 vehicles per day depending on location. Near the L.A. County line, the I-405 is the most heavily traveled freeway in the nation and both the regular lanes and carpool lanes are congested daily during rush hour and on weekends.  

    Traffic along the corridor is expected to grow approximately 35 percent by 2040. Additional lanes and other improvements are needed to improve traffic flow, accommodate growing traffic demand, relieve congestion, and improve overall mobility. The I-405 Improvement Project is critical in order to accommodate expected employment, population and housing growth in not only Orange County but throughout Southern California.

    What is planned for the I-405 Improvement Project?
    The project will improve 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line. The project includes adding one regular lane in each direction from Euclid Street to I-605 and making improvements to freeway entrances, exits and bridges. It also will construct the 405 Express Lanes, two lanes in each direction from SR-73 to I-605. The new express lanes – incorporating the existing carpool lanes and connectors that opened in 2014 – will give solo drivers the choice to speed up their commute for a toll, and carpoolers may ride in the lanes for free.

    Where will vehicles be able to enter and exit the toll lanes?
    There are seven access points in between SR-73 and I-605, giving drivers sufficient opportunity to reach every interchange and business along the corridor, including the Westminster Mall, car dealerships, Bella Terra, Goldenwest College and South Coast Plaza, and any other destination.

    These intermediate access locations minimize right of way impacts to the adjacent community. Additional access points would likely have significant right of way impacts.

    The intermediate access points at Magnolia/Warner and Bolsa/Goldenwest were selected largely to serve Beach Boulevard which is roughly midway along the corridor, has the highest arterial volume of any of the arterials crossing the freeway, and has the largest interchange volumes in the corridor.

    The graphic below depicts the 405 Express Lanes intermediate access locations:

    Are FasTrak® transponders required to use the 405 Express Lanes?
    The 405 Express Lanes will utilize electronic tolling to keep traffic flowing and there will be no cash payments or toll booths. Because of this, transponders will be required for customers to use the express lanes when they open. OCTA will continue to explore technology that may in the future allow drivers to use the express lanes without a transponder.

    What is the overall benefit to the project to include the 405 Express Lanes?
    Those who choose to pay a toll improve traffic for everyone by freeing up space in the regular lanes, including the additional lane in each direction that is being added as part of the project. Also, if there are excess toll revenues beyond operational, maintenance and financing costs, that provides funding for additional improvements in the corridor. As an example, to date the 91 Express Lanes has provided more than $15 million for improvements to the freeway and for public transit in the 91 corridor.

    Adding Express Lanes, in addition to the new regular lanes, benefits all people who use the
    I-405. Rush-hour commutes in the regular lanes on I-405 are expected to be reduced by almost 30 minutes versus only building one regular lane in each direction. The bottom line is you don’t have to pay one penny more and you’ll be home to your family a half-hour sooner.

    What are the toll policy goals of the 405 Express Lanes?
    The OCTA Board of Directors (Board), which is leading the freeway improvement project, voted to adopt a number of goals that would guide the development and implementation of the 405 Express Lanes toll policy. The goals focus on providing express lanes customers with a reliable commute while optimizing the number of cars that can utilize the lanes at free-flow speeds, and encouraging ridesharing and transit use.

    The complete list of board-adopted 405 Express Lanes goals:

    • Provide express lanes customers with a safe, reliable, predictable commute.
    • Optimize throughput at free-flow speeds.
    • Increase average vehicle occupancy.
    • Balance capacity and demand to serve customers who pay tolls as well as people who rideshare or use transit. 
    • Generate sufficient revenue to sustain the financial viability of the express lanes. 
    • Ensure all covenants in the financing documents are met.
    • Ensure any potential net excess toll revenues are used for Interstate 405 corridor improvements.

    The 405 Express Lanes will use congestion management pricing. This type of pricing was pioneered on the 91 Express Lanes, also operated by OCTA.

    Congestion management pricing is designed to optimize express lanes traffic at free-flow speeds. To accomplish this OCTA monitors hourly traffic volumes. Tolls are increased when traffic volumes consistently reach a trigger point where traffic flow can become unstable. If traffic drops below the optimal traffic volume, tolls are lowered to encourage usage.

    The tolls can vary by hour, day of the week and direction of travel. Traffic volumes are continuously monitored and if warranted, tolls are adjusted quarterly. This approach balances traffic engineering with good public policy and gives customers an opportunity to know the toll price before they make their trip.

    405 Express Lanes Initial Toll Policy (Adopted May 23, 2016)

    What is the toll policy for carpools?
    The graphic below depicts the initial 405 Express Lanes Toll Policy adopted by the OCTA Board on May 23, 2016.

    Why does the proposed 405 Express Lanes Toll Policy change after 3.5 years?
    Two goals of the 405 Express Lanes are: (1) balance capacity and demand to serve customers who pay tolls as well as people who rideshare or use transit, and (2) generate sufficient revenue to sustain the financial viability of the express lanes. The first 3.5 years after the 405 Express Lanes open is a ramp-up period. In order to continue to guarantee free-flow speeds and achieve the two goals listed above the toll structure must be adjusted.

    Why are two person carpools only free during certain hours and during the first 3 ½ years?
    The current traffic data shows that the existing carpool lanes do not provide a faster commute and the lanes are experiencing degradation - as you will notice, they often are moving just as slow as or sometimes slower than the regular lanes. This is the reason Caltrans studied carpool lanes and developed the HOV Degradation Report - http://www.dot.ca.gov/trafficops/tm/docs/2015-HOV-degradation-report.pdf

    Will motorcycles be allowed to drive for free in the 405 Express Lanes?
    All vehicles, including motorcycles, must have a transponder in order to use the 405 Express Lanes. Per the toll policy, motorcycles are allowed free travel at all times and are eligible for the Special Access account.

    Will zero emissions vehicles be allowed to drive for free in the 405 Express Lanes?
    At this point in time, we are planning to treat zero emission vehicles similar to HOV3+ vehicles – allowing free travel (but they will still require a transponder). However, OCTA will comply with the legislation that is in place when the 405 Express Lanes open in 2023. The current state legislation (which includes information on white [hybrids] and green [zero emissions] vehicle sticker programs) expires in 2019. If it is not extended, the OCTA Board of Directors may ask staff to develop a policy to address this matter. For more information on California’s Zero Emission Vehicle (ZEV) Program, please visit http://www.arb.ca.gov/msprog/zevprog/zevprog.htm. 

    What is the project schedule? 
    Work has begun along the 16-mile stretch, including temporary paving and restriping of freeway lanes to shift traffic and make room for construction activities, vegetation clearing, and bridge demolition and reconstruction. For the most up-to-date information on scheduled activities, closures and detours, please visit our interactive map at www.octa.net/405map, or download a printable list of closures and detours from the Construction Tab at www.octa.net/405improvement. The project is anticipated to be completed in 2023

    If you have further questions, please contact The Community Outreach Team, by calling 888.400.8994 or by emailing405project@octa.net.  

    Linked Resources & Documents

    Closures and Detours

    Click on the link below for a list of closures and detours scheduled this week. Please note, this list is updated every Friday and occasionally throughout the week, depending on changes in construction activity. The latest information is always available on our interactive map at octa.net/405map.

    Resources

    General Information

    Fact Sheet: San Diego Freeway (I-405) Improvement Project
    Fact Sheet: San Diego Freeway (I-405) Improvement Project - Spanish
    Fact Sheet: San Diego Freeway (I-405) Improvement Project - Vietnamese
    Soundwall General Information
    I-405 Improvement Project General Information
    Bridge Construction Map and Fast Facts
    Open House Presentation
    Open House Exhibit Boards
    Open House Video

    The Project’s environmental documents can be found on the Caltrans website:

    Final EIR/EIS Documents

    Final EIR/EIS Materials (April 3, 2015 to present)

    Final Environmental Impact Report/Environmental Impact Statement Public Notice (April 3, 2015)

    Supplemental Draft EIR/ EIS Materials (June 28 to August 12, 2013)

    Presentation: San Diego Freeway (I-405) Improvement Project
    Study Area Map
    Public Hearing Renderings
    Link to Supplemental Draft EIR/EIS document

    Draft EIR/EIS Materials (May 18 to July 17, 2012)

    Presentation: San Diego Freeway (I-405) Improvement Project
    Study Area Map
    Public Hearing Renderings
    Webpage

    Other Documents

    Design-Build Contract Letter of Interest
    I-405 Notice of Preparation
    I-405 Notice of Intent
    I-405 Scoping Meeting Notice
    Report: I-405 Major Investment Study (MIS) Final Report
    Report: Project Study Report/Project Development Support

    Board of Directors Items Year 2018

    Board of Directors Meeting April 9, 2018
    Board of Directors Meeting March 26, 2018
    Board of Directors Meeting February 26, 2018
    Board of Directors Meeting January 22, 2018

    Board of Directors Items Year 2017

    I-405 Project Update December 11, 2017
    Board of Directors Meeting August 28, 2017
    Board of Directors Meeting August 14, 2017
    I-405 Project Update 08-14-17

    Board of Directors Items Year 2016

    Toll Operating Agreement with the California Department of Transportation
    Award of Design-Build Contract for the Interstate 405 Improvement Project
    Staff Report: Interstate 405 Improvement Project Initial Toll Policy and Preliminary Finance Plan
    Presentation: 405 Preliminary Traffic and Revenue Forecast
    Staff Report: Approval to Release Request for Proposals for the Design and Construction of the Interstate 405 Improvement Project Through a Design-Build Contract
    Staff Report: Cooperative Agreements with the Cities of Costa Mesa, Fountain Valley, Huntington Beach, and Westminster for the Interstate 405 Improvement Project

    Board of Directors Items Year 2015

    Staff Report: Approval of Short-listed Design-Build Teams for the Interstate 405 Improvement Project (November 9, 2015)
    Staff Report: Approval of Assumptions and Options for 405 Express Lanes Toll Policy and Finance Plan (October 12, 2015)
    Staff Report: Federal Incentive Payment Program Modified Settlement Delegation Authority, and Adoption of California Environmental Quality Act Findings for the Interstate 405 Improvement Project (September 28, 2015)
    Staff Report: Amendment to Agreement for the Additional Program Management Consultant Services for the Interstate 405 Improvement Project from State Route 73 to Interstate 605 (July 6, 2015)
    Measure M2 Quarterly Progress Report for the Period of January 2015 through March 2015 (June 8, 2015)
    Staff Report: Project Terms and Conditions, Design-Build Cooperative Agreement, and Next Steps for the Interstate 405 Improvement Project (April 27, 2015)
    Staff Report: Funding for Interstate 405 Express Lanes Costs (March 9, 2015)
    Staff Report: Design-Build Cooperative Agreement with the California Department of Transportation for the Interstate 405 Improvement Project (February 2, 2015)
    Overview
    Details

    Construction activities have begun and include restriping portions of the freeway and setting up concrete barrier on the outside of the freeway to protect work areas for activities such as tree removals and grading.

    Weather permitting, more significant construction activities, such as the first paving operations and bridge demolition activities, are anticipated to commence later this year.

    Please go to our interactive map to view current activities and closures – www.octa.net/405map

    Sign up for Text Alerts!

    Go to the Stay Informed tab to sign up to receive text alerts regarding the project’s closures and detours

    Bridges/Overcrossings

    • The local streets are laid out in a grid system and then the freeway was overlaid at a 45 degree angle. So at many of the interchanges, there is both a north-south bridge and an east-west bridge that needs to be replaced.
    • Most bridges are reconstructed using a two-stage approach. This means the bridges will not be shut down completely, but will be built one half at a time. The one-stage bridges, will be demolished and rebuilt all in one phase and completely closed to the public during their reconstruction.
    • The high number of bridge replacements is one of the project’s critical challenges. We have and will continue to spend a lot of time working with the cities along the freeway on the sequencing of bridge construction to minimize disruptions to the surrounding communities as best as possible.

    Purpose & Mission

    • Reduce congestion
    • Enhance operations
    • Move more vehicles and people, more quickly
    • Provide trip reliability
    • Minimize environmental impacts
    • Build project generally within existing footprint
    • Limit right-of-way acquisitions

    Significant Features

    • Two new lanes in each direction (one GP and one tolled express lane)
    • 18 bridge replacements plus new and widened bridges
    • Interchange reconfigurations
    • Merge lane improvements
    • Arterial street improvements
    • New and replaced soundwalls
    • New bike lanes and sidewalks

    405 Express Lanes

    For detailed information on the 405 Express Lanes, please go to the 405 Express Lanes tab or click here.

    Property Acquisition & Sound Walls

    As part of the project, there are some locations along the 16-miles of the project where we require temporary construction easements (TCE’s) or partial acquisitions.

    There are many sound walls that will be reconstructed or added as a part of the I-405 Improvement Project. Sound walls reduce the level of freeway noise, but do not eliminate it. Other soundwalls, such as replace-in-kind soundwalls, have been identified in the approved Noise Study Report (NSR) and amendments to the NSR available below:

    If you have further questions regarding these matters, please contact the Community Outreach Team, by calling 888.400.8994 or by emailing 405project@octa.net.

    Financing

    The OCGO project, Measure M, being constructed in cooperation with Caltrans, will be funded mostly through a combination of local, state and federal funds, with the express lanes portion of the Project paid for by those who choose to pay a toll and use the 405 Express Lanes. OCTA secured a $629 million federal Transportation Infrastructure Finance and Innovation Act (TIFIA) loan for the I-405 Improvement Project, which will pay for a major portion of the $1.9 billion worth of freeway improvements set to begin construction by early next year. Orange County taxpayers will save $300 million in interest costs thanks to the U.S. Department of Transportation TIFIA loan program.

    Project Partners & Stakeholders

    • OCTA
    • Caltrans
    • FHWA
    • The cities of: Costa Mesa, Fountain Valley, Westminster, Huntington Beach, Garden Grove, Long Beach, Los Alamitos, Seal Beach and the Community of Rossmoor
    • 40 separate utility owners
    • Orange County Flood Control
    • Union Pacific Railroad
    • Army Corps of Engineers
    • U.S. Navy
    • Emergency service providers such as Police and Fire

    Design-Build Contractor

    For information regarding employment and contracting opportunities please contact OC 405 Partners, comprised of OHL and Astaldi, directly by visiting their website http://www.oc405partners.com/.

    The Design-Build contract was awarded to OC 405 Partners, a joint venture team comprised of OHL and Astaldi, in November 2016.

    A joint venture is a new firm formed to achieve specific objectives of a partnership like temporary arrangement between two or more firms. Joint ventures are advantageous as a risk reducing mechanism and in pooling of resource for large projects. This type of partnership between multiple firms also occurred on the SR-22 Project (also a Design-Build project). One firm has a focus on design and one has a focus (or expertise) is construction. Due to this project’s massive scope and complexity, one firm is not capable of taking the entire project on by itself.

    During the procurement of the contract, OCTA was in search of design-build teams that are committed to safety, quality, have proven experience in administration, design and construction, will bring innovative design-build approaches to ensure timely completion, and are willing to partner with the OCTA and Caltrans for the mutual success of the project.

    Ongoing Community Outreach

    • The OCTA Community Outreach team is committed to educating the public on the project and responding to the community’s que and concerns. We are your resource for up-to-date information on the project.
    • Our teams outreach efforts include, but are not limited to:
    • Distributing important project information to the community via email, text alerts, Facebook and Twitter;
    • Sharing project detours and closures using WAZE and Google maps
    • Hosting neighborhood meetings;
    • Providing civic and community group presentations; and
    • Coordinating with city staff, elected officials, emergency service providers, as well as with the media.

    If you are interested in a presentation or briefing for your community or group, please email our team at 405project@octa.net.

    405 Express Lanes

    405 Express Lanes General Information

    The questions and answers below provide current information on the project to improve Interstate 405 (I-405) in Orange County from State Route 73 to Interstate 605.

    Why are improvements needed on I-405?
    The I-405 freeway experiences heavy traffic congestion and conditions are expected to worsen. Built in the 1960s, the freeway carries between 257,000 and 370,000 vehicles per day depending on location. Near the L.A. County line, the I-405 is the most heavily traveled freeway in the nation and both the regular lanes and carpool lanes are congested daily during rush hour and on weekends.  

    Traffic along the corridor is expected to grow approximately 35 percent by 2040. Additional lanes and other improvements are needed to improve traffic flow, accommodate growing traffic demand, relieve congestion, and improve overall mobility. The I-405 Improvement Project is critical in order to accommodate expected employment, population and housing growth in not only Orange County but throughout Southern California.

    What is planned for the I-405 Improvement Project?
    The project will improve 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line. The project includes adding one regular lane in each direction from Euclid Street to I-605 and making improvements to freeway entrances, exits and bridges. It also will construct the 405 Express Lanes, two lanes in each direction from SR-73 to I-605. The new express lanes – incorporating the existing carpool lanes and connectors that opened in 2014 – will give solo drivers the choice to speed up their commute for a toll, and carpoolers may ride in the lanes for free.

    Where will vehicles be able to enter and exit the toll lanes?
    There are seven access points in between SR-73 and I-605, giving drivers sufficient opportunity to reach every interchange and business along the corridor, including the Westminster Mall, car dealerships, Bella Terra, Goldenwest College and South Coast Plaza, and any other destination.

    These intermediate access locations minimize right of way impacts to the adjacent community. Additional access points would likely have significant right of way impacts.

    The intermediate access points at Magnolia/Warner and Bolsa/Goldenwest were selected largely to serve Beach Boulevard which is roughly midway along the corridor, has the highest arterial volume of any of the arterials crossing the freeway, and has the largest interchange volumes in the corridor.

    The graphic below depicts the 405 Express Lanes intermediate access locations:

    Are FasTrak® transponders required to use the 405 Express Lanes?
    The 405 Express Lanes will utilize electronic tolling to keep traffic flowing and there will be no cash payments or toll booths. Because of this, transponders will be required for customers to use the express lanes when they open. OCTA will continue to explore technology that may in the future allow drivers to use the express lanes without a transponder.

    What is the overall benefit to the project to include the 405 Express Lanes?
    Those who choose to pay a toll improve traffic for everyone by freeing up space in the regular lanes, including the additional lane in each direction that is being added as part of the project. Also, if there are excess toll revenues beyond operational, maintenance and financing costs, that provides funding for additional improvements in the corridor. As an example, to date the 91 Express Lanes has provided more than $15 million for improvements to the freeway and for public transit in the 91 corridor.

    Adding Express Lanes, in addition to the new regular lanes, benefits all people who use the
    I-405. Rush-hour commutes in the regular lanes on I-405 are expected to be reduced by almost 30 minutes versus only building one regular lane in each direction. The bottom line is you don’t have to pay one penny more and you’ll be home to your family a half-hour sooner.

    What are the toll policy goals of the 405 Express Lanes?
    The OCTA Board of Directors (Board), which is leading the freeway improvement project, voted to adopt a number of goals that would guide the development and implementation of the 405 Express Lanes toll policy. The goals focus on providing express lanes customers with a reliable commute while optimizing the number of cars that can utilize the lanes at free-flow speeds, and encouraging ridesharing and transit use.

    The complete list of board-adopted 405 Express Lanes goals:

    • Provide express lanes customers with a safe, reliable, predictable commute.
    • Optimize throughput at free-flow speeds.
    • Increase average vehicle occupancy.
    • Balance capacity and demand to serve customers who pay tolls as well as people who rideshare or use transit. 
    • Generate sufficient revenue to sustain the financial viability of the express lanes. 
    • Ensure all covenants in the financing documents are met.
    • Ensure any potential net excess toll revenues are used for Interstate 405 corridor improvements.

    The 405 Express Lanes will use congestion management pricing. This type of pricing was pioneered on the 91 Express Lanes, also operated by OCTA.

    Congestion management pricing is designed to optimize express lanes traffic at free-flow speeds. To accomplish this OCTA monitors hourly traffic volumes. Tolls are increased when traffic volumes consistently reach a trigger point where traffic flow can become unstable. If traffic drops below the optimal traffic volume, tolls are lowered to encourage usage.

    The tolls can vary by hour, day of the week and direction of travel. Traffic volumes are continuously monitored and if warranted, tolls are adjusted quarterly. This approach balances traffic engineering with good public policy and gives customers an opportunity to know the toll price before they make their trip.

    405 Express Lanes Initial Toll Policy (Adopted May 23, 2016)

    What is the toll policy for carpools?
    The graphic below depicts the initial 405 Express Lanes Toll Policy adopted by the OCTA Board on May 23, 2016.

    Why does the proposed 405 Express Lanes Toll Policy change after 3.5 years?
    Two goals of the 405 Express Lanes are: (1) balance capacity and demand to serve customers who pay tolls as well as people who rideshare or use transit, and (2) generate sufficient revenue to sustain the financial viability of the express lanes. The first 3.5 years after the 405 Express Lanes open is a ramp-up period. In order to continue to guarantee free-flow speeds and achieve the two goals listed above the toll structure must be adjusted.

    Why are two person carpools only free during certain hours and during the first 3 ½ years?
    The current traffic data shows that the existing carpool lanes do not provide a faster commute and the lanes are experiencing degradation - as you will notice, they often are moving just as slow as or sometimes slower than the regular lanes. This is the reason Caltrans studied carpool lanes and developed the HOV Degradation Report - http://www.dot.ca.gov/trafficops/tm/docs/2015-HOV-degradation-report.pdf

    Will motorcycles be allowed to drive for free in the 405 Express Lanes?
    All vehicles, including motorcycles, must have a transponder in order to use the 405 Express Lanes. Per the toll policy, motorcycles are allowed free travel at all times and are eligible for the Special Access account.

    Will zero emissions vehicles be allowed to drive for free in the 405 Express Lanes?
    At this point in time, we are planning to treat zero emission vehicles similar to HOV3+ vehicles – allowing free travel (but they will still require a transponder). However, OCTA will comply with the legislation that is in place when the 405 Express Lanes open in 2023. The current state legislation (which includes information on white [hybrids] and green [zero emissions] vehicle sticker programs) expires in 2019. If it is not extended, the OCTA Board of Directors may ask staff to develop a policy to address this matter. For more information on California’s Zero Emission Vehicle (ZEV) Program, please visit http://www.arb.ca.gov/msprog/zevprog/zevprog.htm. 

    What is the project schedule? 
    Work has begun along the 16-mile stretch, including temporary paving and restriping of freeway lanes to shift traffic and make room for construction activities, vegetation clearing, and bridge demolition and reconstruction. For the most up-to-date information on scheduled activities, closures and detours, please visit our interactive map at www.octa.net/405map, or download a printable list of closures and detours from the Construction Tab at www.octa.net/405improvement. The project is anticipated to be completed in 2023

    If you have further questions, please contact The Community Outreach Team, by calling 888.400.8994 or by emailing405project@octa.net.  

    Linked Resources & Documents

    Construction

    Closures and Detours

    Click on the link below for a list of closures and detours scheduled this week. Please note, this list is updated every Friday and occasionally throughout the week, depending on changes in construction activity. The latest information is always available on our interactive map at octa.net/405map.

    Documents

    Resources

    General Information

    Fact Sheet: San Diego Freeway (I-405) Improvement Project
    Fact Sheet: San Diego Freeway (I-405) Improvement Project - Spanish
    Fact Sheet: San Diego Freeway (I-405) Improvement Project - Vietnamese
    Soundwall General Information
    I-405 Improvement Project General Information
    Bridge Construction Map and Fast Facts
    Open House Presentation
    Open House Exhibit Boards
    Open House Video

    The Project’s environmental documents can be found on the Caltrans website:

    Final EIR/EIS Documents

    Final EIR/EIS Materials (April 3, 2015 to present)

    Final Environmental Impact Report/Environmental Impact Statement Public Notice (April 3, 2015)

    Supplemental Draft EIR/ EIS Materials (June 28 to August 12, 2013)

    Presentation: San Diego Freeway (I-405) Improvement Project
    Study Area Map
    Public Hearing Renderings
    Link to Supplemental Draft EIR/EIS document

    Draft EIR/EIS Materials (May 18 to July 17, 2012)

    Presentation: San Diego Freeway (I-405) Improvement Project
    Study Area Map
    Public Hearing Renderings
    Webpage

    Other Documents

    Design-Build Contract Letter of Interest
    I-405 Notice of Preparation
    I-405 Notice of Intent
    I-405 Scoping Meeting Notice
    Report: I-405 Major Investment Study (MIS) Final Report
    Report: Project Study Report/Project Development Support

    Board of Directors Items Year 2018

    Board of Directors Meeting April 9, 2018
    Board of Directors Meeting March 26, 2018
    Board of Directors Meeting February 26, 2018
    Board of Directors Meeting January 22, 2018

    Board of Directors Items Year 2017

    I-405 Project Update December 11, 2017
    Board of Directors Meeting August 28, 2017
    Board of Directors Meeting August 14, 2017
    I-405 Project Update 08-14-17

    Board of Directors Items Year 2016

    Toll Operating Agreement with the California Department of Transportation
    Award of Design-Build Contract for the Interstate 405 Improvement Project
    Staff Report: Interstate 405 Improvement Project Initial Toll Policy and Preliminary Finance Plan
    Presentation: 405 Preliminary Traffic and Revenue Forecast
    Staff Report: Approval to Release Request for Proposals for the Design and Construction of the Interstate 405 Improvement Project Through a Design-Build Contract
    Staff Report: Cooperative Agreements with the Cities of Costa Mesa, Fountain Valley, Huntington Beach, and Westminster for the Interstate 405 Improvement Project

    Board of Directors Items Year 2015

    Staff Report: Approval of Short-listed Design-Build Teams for the Interstate 405 Improvement Project (November 9, 2015)
    Staff Report: Approval of Assumptions and Options for 405 Express Lanes Toll Policy and Finance Plan (October 12, 2015)
    Staff Report: Federal Incentive Payment Program Modified Settlement Delegation Authority, and Adoption of California Environmental Quality Act Findings for the Interstate 405 Improvement Project (September 28, 2015)
    Staff Report: Amendment to Agreement for the Additional Program Management Consultant Services for the Interstate 405 Improvement Project from State Route 73 to Interstate 605 (July 6, 2015)
    Measure M2 Quarterly Progress Report for the Period of January 2015 through March 2015 (June 8, 2015)
    Staff Report: Project Terms and Conditions, Design-Build Cooperative Agreement, and Next Steps for the Interstate 405 Improvement Project (April 27, 2015)
    Staff Report: Funding for Interstate 405 Express Lanes Costs (March 9, 2015)
    Staff Report: Design-Build Cooperative Agreement with the California Department of Transportation for the Interstate 405 Improvement Project (February 2, 2015)
    Stay Informed

Overview Tab Content:

  • I-405 Schedule

    Please go to our interactive map to view current activities and closures – www.octa.net/405map

  • Project Videos

    Watch the videos below to check out the new I-405 Improvement Project. Each one provides different information about various aspects of the 16-mile project.

     

    Project Overview

    OCTA in cooperation with The California Department of Transportation (Caltrans) is widening the San Diego Freeway (I-405) between State Route 73 (SR-73) and Interstate 605 (I-605).The project will improve 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line. The project includes adding one regular lane in each direction between Euclid Street and I-605 and making improvements to freeway entrances, exits and bridges. In addition, the project will add the 405 Express Lanes, incorporating the existing carpool lanes and a new lane in each direction between SR-73 and I-605. The 405 Express Lanes will give solo drivers the choice to speed up their commute for a toll and give options for carpoolers to use the lanes for free. When the express lanes open, two-person carpools will pay a toll only during peak hours and carpools of three or more will be free at all times.

    The general purpose lane portion of the project is an OCGO, formally Measure M (Orange County's half-cent transportation sales tax), project and will be funded by a combination of local, state and federal funds, with the express lanes portion of the project financed and primarily paid for by those who choose to pay a toll and use the 405 Express Lanes.

    Because of the high demand for the I-405 and the need to stay within the existing right of way, the project cannot provide enough additional lanes to eliminate congestion.  The 405 Express Lanes, however, will provide a fast, stress-free travel option. Because the amount of traffic in the 405 Express lanes will be optimized by raising and lowering tolls in response to traffic demand, the 405 Express Lanes will be more predictable and move more vehicles per lane during peak periods than the regular, general purpose lanes. Solo drivers in the 405 Express Lanes will pay the full toll and carpools are anticipated to be offered discounts or free travel. The toll policy has not been finalized yet but it will be designed to provide customers with a safe, reliable, congestion-free commute.  The 405 Express lanes will offer people a choice to travel faster when they absolutely need to.

    In 2040, it's expected to take 29 minutes to travel during rush hour from SR-73 to I-605 in the general purpose lanes after improvements to the I-405 are complete. That commute can be reduced to 13 minutes if a driver chooses to take the 405 Express Lanes.

    OC405 Partners

    The Design-Build contract was awarded to OC 405 Partners, in November, 2016 and they are currently developing a project schedule. Please keep in mind that because this is a Design-Build project, it’s possible that work may be simultaneously performed in multiple areas the 16-mile stretch (I-605 to SR-73). To sign up for our email alerts, please go to the Stay Informed Tab. In the meantime, please contact our team should you have any questions. We are happy to assist.

    For information regarding employment and contracting opportunities please contact OC 405 Partners, comprised of OHL and Astaldi, directly by visiting their website http://www.oc405partners.com/.   

Details Tab Content:

Detours Tab Content:

Gallery HTML Tab Content:

    • Pile Installation Activities

      WHAT: Daytime pile and steel plate installation for temporary shoring

      WHERE: Adjacent to Bolsa Avenue, on the NB and SB sides of I-405

      WHEN: Ongoing through Friday, July 12, 6:30 a.m. to 4:30 p.m., on weekdays.

      Crews may conduct pile installation activities at night.

      DETOURS:

      WHAT: Striping operation

      WHERE: Bolsa Avenue will be closed between Goldenwest Street and Chestnut Street.

      WHEN: As early as 10 p.m. Thursday, June 27, to 5 a.m. Friday, June 28

      DETOURS: Eastbound Bolsa Avenue Detour:
      Bolsa Avenue → Goldenwest Street → Hazard Avenue → Hoover Street or Beach Boulevard → Bolsa Avenue

      Westbound Bolsa Avenue Detour:
      Bolsa Avenue → Beach Boulevard → Hazard Avenue → Goldenwest Street → Bolsa Avenue

      To view all closures and detours, please visit the interactive map or click here for a PDF list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Construction Activities

      WHAT: Bridge construction activities

      WHERE: Northbound Bolsa Chica Road will be reduced to one lane intermittently between Duncannon Avenue and Garden Grove Boulevard.

      WHEN: Ongoing, 9 a.m. to 3 p.m., on weekdays

      WHAT: Settlement fill construction

      WHERE: Adjacent to Bolsa Chica Road bridge, on the southbound side of I-405.

      WHEN:

      • Daytime: As early as 7 a.m. to 4 p.m., ongoing, weekdays
      • Nighttime: As early as 10 p.m. to 5 a.m. ongoing, weekdays

      WHY: These large piles of dirt will remain in place for up to three months to compact the soil beneath them for future bridge support structures.

      To view all closures and detours, please visit the interactive map or click here for a PDF list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Vegetation Removal

      WHAT: Vegetation removal activities

      WHERE: NB Bushard Street, between Slater Avenue and Warner Avenue

      The outside lane will be closed intermittently between I-405 and the entrance to the alley for the shopping plaza on Bushard Street/Warner Avenue so that crews can navigate their vehicles in and out of the work zone.

      WHEN: Ongoing, through Friday, June 28, 6:30 a.m. to 4 p.m., on weekdays

    • Pile Installation Activities

      WHAT: Daytime pile installation activities

      WHERE: Adjacent to the Fairview Road bridge on the NB and SB sides of I-405, and in the center median of the freeway.

      WHEN: Beginning as early as Wednesday, June 26, 6:30 a.m. to 4 p.m., for approximately two months, on weekdays and Saturdays.

      Crews may conduct pile installation activities at night.

      Construction Activities

      Crews completed the partial demolition of the east side of the Fairview Road bridge over I-405.

      Other activities will take place during the day, behind k-rail and at night, using freeway lane closures.

      The demolition and reconstruction of the Fairview Road bridge is part of the I-405 Improvement Project, which adds a general-purpose lane and a tolled Express Lane facility in each direction of the 16-mile project. The Fairview Road bridge, one of 18 to be reconstructed as part of the project, will be partially closed for up to 24 months.

      To view all closures and detours, please visit the interactive map or click here for a PDF list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

      The demolition and reconstruction of the Fairview Road bridge is part of the I-405 Improvement Project, which adds a general-purpose lane and a tolled Express Lane facility in each direction of the 16-mile project. The Fairview Road bridge, one of 18 to be reconstructed as part of the project, will be partially closed for up to 24 months.

      For more information about the bridge reconstruction, see the PDF documents below.

    • Detours

      WHERE: Adjacent to Goldenwest Street, on the NB side of I-405. NB I-405 will be closed between Bolsa Avenue and Goldenwest Street, and SB I-405 will be closed between Springdale Street and Goldenwest Street. These closures will not happen concurrently

      Additional closures

      • NB I-405 loop on-ramp from NB Goldenwest Street
      • SB I-405 loop on-ramp from SB Goldenwest Street

      Detours will be in place, and signs will be posted to guide motorists around the closures. Motorists should expect delays and use alternate routes if possible.

      WHEN:

      • As early as 11 p.m. Monday, July 1 to 5 a.m. Tuesday, July 2: SB I-405 and the SB I-405 loop on-ramp from SB Goldenwest Street will be closed
      • As early as 11 p.m. Tuesday, July 2 to 5 a.m. Wednesday, July 3: NB I-405 and the NB I-405 loop on-ramp from NB Goldenwest Street will be closed

      DETOUR:

      SB I-405 Detours:

      • Detour No. 1: SB I-405 → SB I-405 off-ramp onto Westminster Mall Road → EB Westminster Mall Road → SB Goldenwest Street →EB Bolsa Avenue → SB I-405 on-ramp
      • Detour No. 2: SB I-405 → SB I-405 off-ramp onto Westminster Mall Road → EB Westminster Mall Road → SB Goldnwest Street → EB Edinger Avenue → SB I-405 on-ramp

      NB I-405 Detours:

      • Detour No. 1: Exit Bolsa Avenue → Edwards Street → Westminster Boulevard → NB I-405
      • Detour No. 2: Exit Bolsa Avenue → Springdale Street → Westminster Boulevard → NB I-405

      To view all closures and detours, please visit the interactive map or click here for a PDF list.

    • WHAT: Crews will demolish a portion of the I-405 bridge over Harbor Boulevard.

      WHERE: The southbound I-405 bridge over Harbor Boulevard and Harbor Boulevard between the northbound and southbound freeway ramps

      This work will also require lane closures on SB I-405, but not full freeway closures.

      Additional Closures:

      • SB I-405 loop on-ramp from Harbor Boulevard
      • NB I-405 loop on-ramp from Harbor Boulevard

      Detours will be in place, and signs will be posted to guide motorists around the closures. Motorists should expect delays and use alternate routes if possible.

      WHEN: As early as Wednesday, June 26 to Monday, July 1: 10 p.m. to 5 a.m.

      • NB Harbor Boulevard, the NB I-405 loop on-ramp from Harbor Boulevard will be closed, and the left lane on SB Harbor Boulevard will be closed.

      As early as Monday, July 1 to Tuesday, July 2, and again on Monday, July 8 to Thursday, July 11: 10 p.m. to 5 a.m.

      • SB Harbor Boulevard, the SB I-405 loop on-ramp from Harbor Boulevard, and the left lane on NB Harbor Boulevard will be closed.

      DETOURS:

      NB Harbor Boulevard Detours:

      • Detour No. 1: EB Baker Street → NB Fairview Road → WB South Coast Drive → NB Harbor Boulevard
      • Detour No. 2: EB Baker Street → NB Fairview Road → WB Sunflower Avenue → NB Harbor Boulevard

      NB I-405 loop on-ramp from Harbor Boulevard Detour:
      Baker Street → Fairview Road → South Coast Drive → Harbor Boulevard straight on-ramp

      SB Harbor Boulevard Detours:

      • Detour No. 1: EB Sunflower Street → SB Fairview Road → WB Baker Street → SB Harbor Boulevard
      • Detour No. 2: EB South Coast Drive → SB Fairview Road → WB Baker Street → SB Harbor Boulevard

      SB I-405 loop on-ramp from Harbor Boulevard Detour:
      South Coast Drive → Fairview Road → SB I-405

    • Construction Activities

      WHAT: Falsework construction, which includes installing timber and steel beams to support construction of the new Magnolia Street bridge.

      WHERE: Adjacent to Magnolia Street, on the southbound (SB) side of I-405. SB I-405 will be fully closed between Magnolia Street and Warner Avenue.

      Additional Closure:

      • SB I-405 loop on-ramp from Magnolia Street

      Detours will be in place, and signs will be posted to guide motorists around the closures. Motorists should expect delays and use alternate routes if possible.

      WHEN: Ongoing, through Tuesday, July 2, 11 p.m. to 5 a.m., on weeknights.
      This work also will require the closure of northbound I-405. The schedule for that closure will be included in a future construction alert.

      DETOURS:

      SB I-405 Detours:

      • Detour No. 1: Exit SB I-405 at Magnolia Street → Warner Avenue → Warner Avenue on-ramp
      • Detour No. 2: Exit SB I-405 at Beach Boulevard → Warner Avenue → Warner Avenue on-ramp

      SB I-405 loop on-ramp from Magnolia Street Detour:
      Magnolia Street → Warner Avenue → SB I-405 straight on-ramp

      WHAT: Daytime pile installation

      WHERE: Adjacent to Magnolia Street bridge, on the NB and SB sides of I-405.

      WHEN: As early as 7 a.m. to 4 p.m. Monday April 8, for approximately three weeks. Crews may conduct pile installation activities at night.

      WHY: Pile installation is necessary to construct the foundation of the new Magnolia Street bridge.


      WHAT: Bridge construction activities

      WHERE: NB Magnolia Street will be reduced to one lane intermittently between the Boomers driveway and Heil Avenue.

      WHEN: Ongoing, 9 a.m. to 3 p.m., on weekdays

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Construction Activities

      WHAT: Concrete placement for the new McFadden Avenue bridge

      WHERE: SB I-405 at McFadden Avenue

      WHEN: As early as Thursday, June 27 and again on Friday, July 5: 10 p.m. to 6 a.m.

      This work may require freeway lane closures, which can only be done at night.

      Crews will haul out materials using their main haul route: Beach Boulevard → McFadden Avenue

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Construction Activities

      WHAT: Crews will continue to demolish portions of the Santa Ana River bridge structure within the river channel.

      WHERE: In the Santa Ana River channel.

      WHEN: Ongoing through Thursday, June 13, 7 a.m. to 4 p.m., on weekdays.
      Crews may conduct pile installation activities at night.

      DETOURS:
      Euclid Street Detour No.1: Euclid Street/Ellis Avenue → Talbert Avenue → Ward Street → Ellis Avenue

      SB loop on-ramp from Euclid Street/Ellis Avenue Detour: Euclid Street/Ellis → MacArthur Boulevard → Harbor Boulevard → SB I-405

      WHAT: Settlement fill construction

      WHERE: Adjacent to SB I-405 bridge over the Santa Ana River bridge near Moon Park

      WHEN: As early as Tuesday, May 28 to Friday, May 31, 9 p.m. to 6 a.m. on weekdays, for approximately two weeks

      Some activities will also occur during the day.

      The bike path is expected to remain open.

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

      Pile Installation Activities

      WHAT: Daytime pile installation activities

      WHERE: Adjacent to the Santa Ana River, on the NB and SB sides of the I-405

      WHEN: As early as Monday, June 3, 7 a.m. to 4 p.m. for approximately three weeks on weekends
      Crews may conduct pile installation activities at night.

    • Construction Activities

      WHAT: Concrete placement for the new Slater Avenue bridge

      WHERE: Adjacent to Slater Avenue

      WHEN: As early as 8 p.m. to 6 a.m., Tuesday, May to Wednesday, May 22

      Crews will haul out materials using their main haul route:

      • Magnolia Street or Bushard Street → Slater Avenue
      • Brookurst Street → Slater Avenue

      DETOURS:

      • NB I-405 and NB Brookhurst Street Detour: NB Brookhurst Street → WB Warner Avenue → NB I-405
      • SB Brookhurst Street On-Ramp Detour: SB Brookhurst Street → WB Talbert Avenue → NB Magnolia Street → NB I-405
      • SB I-405 Detour: SB Magnolia Street → EB Talbert Avenue → SB I-405
      • SB I-405 on-ramp from EB Warner Avenue Detour: EB Warner Avenue → SB Brookhurst Street → SB I-405 Loop On-ramp
      • SB I-405 loop off-ramp onto EB Warner Avenue Detour: SB I-405 Magnolia Street off-ramp → EB Warner Avenue
      • SB I-405 off-ramp onto SB Brookhurst Street Detour: SB I-405 Magnolia Street off-ramp → SB Magnolia Street → EB Talbert Avenue → SB Brookhurst Street
      • SB I-405 on-ramp from SB Brookhurst Street Detour: SB Brookhurst Street → EB Talbert Avenue → SB I-405 on-ramp

      Construction activities will continue during the day and at night to rebuild the bridge.

      The demolition and reconstruction of the Slater Avenue bridge is part of the I-405 Improvement Project, which adds a general purpose lane and a tolled Express Lane facility in each direction of the 16-mile project. The Slater Avenue bridge, one of 18 to be reconstructed as part of the project, will be closed for approximately 12 months.

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Pile Installation Activities

      WHAT: Daytime pile and steel plate installation for temporary shoring

      WHERE: Adjacent to Westminster Boulevard, on the NB and SB sides of I-405

      WHEN: Ongoing through Friday, June 28: 6:30 a.m. to 4 p.m., on weekdays

      Crews may conduct pile installation activities at night.

      Demolition Activities

      WHAT: Partial demolition of the Westminster Boulevard bridge. Crews will demolish a portion of the bridge over northbound (NB) and southbound (SB) I-405.

      WHERE: The Westminster Boulevard bridge over NB and SB I-405. The freeway will be closed in both directions between Westminster Boulevard and Springdale Street.

      • Westminster Boulevard, between Willow Lane and Springdale Street

      Additional Closures

      • NB I-405 loop on-ramp from NB Goldenwest Street
      • NB I-405 loop off-ramp to WB Westminster Boulevard
      • NB I-405 on-ramp from Westminster Boulevard
      • SB I-405 loop on-ramp from SB Bolsa Chica Road
      • SB I-405 loop on-ramp to EB Westminster Boulevard

      Detours will be in place, and signs will be posted to guide motorists around the closures. Motorists should expect delays and use alternate routes if possible.

      WHEN: As early as Friday, May 31: 10 p.m. to 8 a.m. NB I-405 will be fully closed between Westminster Boulevard and Springdale Street. The HOV and left two lanes will be closed on SB I-405.

      Saturday, June 1: 10 p.m. to 8:30 a.m. NB and SB I-405 will be fully closed between Springdale Street and Westminster Boulevard.

      This work was rescheduled.

      DETOURS:

      NB I-405 Detour:

      • Detour No. 1: Exit Bolsa Avenue loop off-ramp → WB Bolsa Avenue → NB Goldenwest Street → WB SR-22 on-ramp → NB I-405 Connector
      • Detour No. 2: Exit Westminster Boulevard east off-ramp → EB Westminster Boulevard → NB Edward Street→ WB Garden Grove Boulevard → NB Valley View Street → NB I-405 On-ramp

      NB I-405 loop on-ramp from NB Goldenwest Street Detour
      NB Goldenwest Street → WB SR-22 on-ramp → NB I-405 connector

      NB I-405 loop off-ramp to WB Westminster Boulevard Detour
      Exit Bolsa Avenue off-ramp → WB Bolsa Avenue → NB Springdale Street → Westminster Boulevard

      NB I-405 on-ramp from Westminster Boulevard
      NB Goldenwest Street → WB SR-22 on-ramp → NB I-405 connector

      SB I-405 Detours:

      • Detour No. 1: Exit Springdale Street off-ramp → SB Springdale Street → EB Westminster Boulevard → SB I-405 on-ramp
      • Detour No. 2: Exit Bolsa Chica Road off-ramp → SB Bolsa Chica Road → EB Westminster Boulevard → SB I-405 on-ramp

      SB I-405 loop on-ramp from SB Bolsa Chica Road
      SB Bolsa Chica Road → EB Westminster Boulevard → SB I-405 on-ramp

      SB I-405 loop on-ramp to EB Westminster Boulevard
      Exit EB SR-22 Off-ramp → Exit Garden Grove Boulevard off-ramp → EB Garden Grove Boulevard → SB Edwards Street → EB Westminster Boulevard

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • Pile Installation Activities

      Milton Avenue

      WHAT: Crews will conduct underground utility work on Milton Avenue, including relocation of water and electrical lines, and demolition and reconstruction of the drainage channel adjacent to Hope Lutheran Church. This work will require an extended full closure of Milton Avenue.

      WHERE: Milton Avenue will be fully closed between Willow Lane and Hefley Street.

      WHEN: Beginning as soon as 7 a.m. Monday, April 22, 2019, for approximately five months.

      NOTE: If there is downtime between major activities, the contractor will, to the extent possible, reopen the roadway.
      Work hours are 7 a.m. to 5 p.m., however, crews may also work at night.

      Milton Avenue will be closed for the full duration of the work. Flaggers will be on site for local access, and driveways will be maintained. The sidewalk on the southwest side of Milton Avenue will be closed intermittently; pedestrians will be detoured to the opposite sidewalk.

      Dates and times are subject to change due to unforeseen operational factors or inclement weather.

      WHY: As part of the I-405 Improvement Project, several underground utilities must be relocated. The extended closure allows the work to be done efficiently and safely.

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

      Bushard Street (Utility Work)

      WHAT: Underground utility work

      WHERE: SB Bushard Street, between Warner Avenue and La Luna Avenue

      SB Bushard Street will be reduced to one lane between Warner Avenue and La Luna Avenue intermittently.

      WHEN: As early as Monday, June 24, 6:30 a.m. to 4 p.m., for approximately two weeks, on weekdays

      Crews may also work at night.

      Goldenwest (Utility Work)

      WHAT: Underground utility work

      WHERE: On the Goldenwest Street Bridge over I-405, between Sowell Avenue and just north of Bolsa Avenue.

      WHEN: As early as Monday, June 24, 7 a.m. to 4 p.m., on weekdays, through mid-December

      Crews may also work at night.

      This work was rescheduled from Monday, June 17 to Monday, June 24.

      Goldenwest Street will be reduced to one lane in each direction to conduct the utility work this fall.

      Heil Avenue (Utility Work)

      WHAT: Underground utility work

      WHERE: On Heil Avenue, adjacent to NB I-405

      WHEN: Beginning as early as Monday, June 24, 6:30 a.m. to 4 p.m., for approximately two months

      Crews may also work at night.

      The work zone will be in the alley adjacent to the pedestrian overcrossing.

      Warner Avenue (Utility Work)

      WHAT: Electrical work

      WHERE: Warner Avenue, between Brookhurst Street and Bushard Street

      WHEN: Ongoing through Friday, June 28, 6:30 a.m. to 4 p.m.

      Warner Avenue will be reduced to one lane in each direction, between Brookhurst Street and Bushard Street

    • Bolsa Chica Road

      WHAT: Crews are working on the foundation of the new wall

      WHERE: SB I-405, adjacent to Bolsa Chica Road

      WHEN: Ongoing, 7 a.m. to 4 p.m., on weekdays

      Crews may also work at night.

      Vallecito Avenue

      WHAT: Please be advised that this work may be loud. Crews will demolish the remainder of the existing sound wall adjacent to SB I-405 between Milan Street and Springdale Street.

      A new sound wall is being constructed as part of the improvement project.

      A temporary sound barrier will be in place during construction of the new sound wall.

      Please be advised that this work may be loud.

      WHERE: Southbound I-405 between Milan Street and Springdale Street.

      WHEN: Demolition activities are ongoing as of Tuesday, May 28.

      Activities will occur approximately 6:30 a.m. to 4 p.m. and 10 p.m. to 5 a.m.

      Crews will haul out materials behind freeway lane closures, which can only be done at night.

      Talbert Avenue

      WHAT: Crews are working on the foundation for the new wall and loading out material

      WHERE: Along SB I-405 near Talbert Avenue, adjacent to LA Fitness

      WHEN: Ongoing, during the day and at night on weekdays.

      Milan Street

      WHAT: Crews are working on the foundation for the new wall and loading out material.

      WHERE: Milan Street, between approximately Stratford Avenue and 200 feet south of Lowell Circle.

      WHEN: Ongoing, during the day and at night on weekdays.

      Meinhardt Road

      WHAT: Crews demolished the majority of the sound wall adjacent to northbound I-405 between Springdale Street and Valley View Street.

      A new sound wall is being constructed as part of the improvement project.

      A temporary sound barrier will be in place for the duration of construction of the new sound wall.

      Please be advised that this work may be loud.

      WHEN: Demolition activities are ongoing as of Monday, May 6.

      Activities will occur approximately 6:30 a.m. to 4 p.m. and 10 p.m. to 5 a.m.

      Crews will haul out materials behind freeway lane closures, which can only be done at night.

      Southbound I-405

      WHAT: Crews will demolish the remainder of the existing sound wall adjacent to SB I-405 along Milan Street.
      A new sound wall is being constructed as part of the improvement project.

      Please be advised that this work may be loud.

      WHERE: Southbound I-405, along Milan Street, between Bolsa Chica Road and Stratford Avenue.

      WHEN: Demolition activities are anticipated to begin as early as Monday, June 24

      Activities will occur approximately 7 a.m. to 4 p.m. and 10 p.m. to 5 a.m.

      Crews will haul out materials behind freeway lane closures, which can only be done at night.

      To view all closures and detours, please visit the interactive map or  click here  for a pdf list.

      *Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

    • WHAT: Ocean View channel widening

      WHERE: NB I-405, between Warner Avenue and Magnolia Street

      WHEN: As early as Tuesday, May 28 to Friday, June 14, 7 a.m. to 4 p.m. on weekdays, for approximately three weeks. Crews may also work at night. Crews may conduct pile installation activities at night.

    • WHAT: Demolition and settlement fill construction

      WHERE: NB I-405, between Ward Avenue and Santa Ana River

      WHEN:Ongoing though Friday, June 14, 7 a.m. to 4 p.m. on weekdays, for approximately two weeks. Crews may also work at night.

    • WHAT: Daytime pile and steel plate installation for temporary shoring

      WHERE: SB I-405 between Edinger Avenue and Newland Street; adjacent to the parking garage structure and Huntington Creek Apartments.

      WHEN: As early as Wednesday, May 29, 6:30 a.m. to 4 p.m. for approximately two weeks on weekends.
      Crews may conduct pile installation activities at night.

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