Orange County Transportation Authority

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  • I-5 (SR-57 to SR-55)

    Project Contacts 1 of 2

    Current Project Phase

    The project is in the Final Design phase, which involves surveying and collecting data on items such as:

    • Existing road and bridge conditions;
    • Traffic volumes;
    • The ratio of cars to trucks and buses;
    • Crash statistics;
    • Terrain and soil properties;
    • Drainage capabilities;
    • Utilities that will be affected; and
    • Possible future development in the area.

    Experts including transportation planners, engineers, environmentalists, landscape architects, geologists and others will use the data to identify trends to determine how best to build the project for improved travel conditions and minimal environmental effects.

    Environmental Review Phase

    The environmental review phase is complete. Caltrans was the lead agency and was responsible for approving a proposed preferred alternative; OCTA was the sponsoring agency. The environmental review process is mandated by the California Environmental Quality Act (CEQA) and the National Environmental Policy Act (NEPA). In general, the purpose of the environmental review process is to identify the project’s potential environmental impacts, and to develop measures to avoid, minimize and/or mitigate these impacts.

    Caltrans and OCTA will add one HOV lane in each direction on a 2.9-mile stretch of Interstate 5 from State Route 55 to State Route 57 and remove the southbound off-ramp and northbound on-ramp HOV structure at Main Street, referred to as the "Main Street HOV drop structure."

    The notice of availability of the Negative Declaration/Finding of No Significant Impact for this project is available online at www.dot.ca.gov/dist12/DEA/0C890/index.htm.

    CEQA and NEPA Resources

    For more information on CEQA and NEPA, please visit the following websites:

    1. https://ceq.doe.gov/
    2. http://resources.ca.gov/ceqa/more/faq.html
    3. http://resources.ca.gov/ceqa/guidelines/
    4. http://www.epa.gov/compliance/nepa/

    Anticipated Project Schedule

    Community Outreach

    As the project moves through the final design phase and toward the construction phase, we will continue to keep residents, businesses and community leaders informed. We are actively meeting with key groups, homeowners associations and businesses in the area. Please contact us to schedule a presentation or for additional project information.

    There are currently no detours.
    Overview
    Details

    Current Project Phase

    The project is in the Final Design phase, which involves surveying and collecting data on items such as:

    • Existing road and bridge conditions;
    • Traffic volumes;
    • The ratio of cars to trucks and buses;
    • Crash statistics;
    • Terrain and soil properties;
    • Drainage capabilities;
    • Utilities that will be affected; and
    • Possible future development in the area.

    Experts including transportation planners, engineers, environmentalists, landscape architects, geologists and others will use the data to identify trends to determine how best to build the project for improved travel conditions and minimal environmental effects.

    Environmental Review Phase

    The environmental review phase is complete. Caltrans was the lead agency and was responsible for approving a proposed preferred alternative; OCTA was the sponsoring agency. The environmental review process is mandated by the California Environmental Quality Act (CEQA) and the National Environmental Policy Act (NEPA). In general, the purpose of the environmental review process is to identify the project’s potential environmental impacts, and to develop measures to avoid, minimize and/or mitigate these impacts.

    Caltrans and OCTA will add one HOV lane in each direction on a 2.9-mile stretch of Interstate 5 from State Route 55 to State Route 57 and remove the southbound off-ramp and northbound on-ramp HOV structure at Main Street, referred to as the "Main Street HOV drop structure."

    The notice of availability of the Negative Declaration/Finding of No Significant Impact for this project is available online at www.dot.ca.gov/dist12/DEA/0C890/index.htm.

    CEQA and NEPA Resources

    For more information on CEQA and NEPA, please visit the following websites:

    1. https://ceq.doe.gov/
    2. http://resources.ca.gov/ceqa/more/faq.html
    3. http://resources.ca.gov/ceqa/guidelines/
    4. http://www.epa.gov/compliance/nepa/

    Anticipated Project Schedule

    Community Outreach

    As the project moves through the final design phase and toward the construction phase, we will continue to keep residents, businesses and community leaders informed. We are actively meeting with key groups, homeowners associations and businesses in the area. Please contact us to schedule a presentation or for additional project information.

    Detours
    There are currently no detours.
    Gallery
    Stay Informed

Overview Tab Content:

  • Motorists frequently experience traffic congestion on the I-5 freeway between SR-55 and SR-57, and research indicates that delays likely will increase. According to recent studies, 390,000 motorists travel this route every day. By 2030, that daily number is expected to rise to 464,000 – an increase of 19 percent. Caltrans, in partnership with OCTA, is proposing to add a second carpool lane in each direction to relieve traffic congestion, alleviate bottlenecks and improve traffic operations on this corridor within the cities of Santa Ana, Orange and Tustin. The project also includes removing the I-5/Main Street HOV on- and off-ramps.

Details Tab Content:

Detours Tab Content:

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I-5 Improvements Keep Me Informed

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