Freeway & Roadway
I-405 HOV Lane Sepulveda Pass
Sepulveda Pass, Los Angeles, California
Sepulveda Pass, Los Angeles, California
-
Completed in
Completed in
2010
2010
The I-405 HOV Lane Sepulveda Pass projectprovides a continuous high-occupancy-lane on I-405 in Los Angeles County between I-10 and US-101. The construction cost of this design-build project project is $750 million. This is a design-build project which includes widening and/or replacement of 23 bridges along the 10-mile stretch of I-405.
EMI conducted site investigation consisting soil borings and CPTs, most of them on traveled way. The site investigation was carried out with two drill crews working nights to complete the work on time. EMI engineers worked daily with structural designers in the Integrated Project Office, and attended weekly coordination meetings with Caltrans. Preliminary and Final Foundation Reports were submitted for each bridge on schedule.
In addition to foundation designs associated with bridge widening and replacement, EMI carried out soil-structure interaction analyses to evaluate adverse effects and mitigation on drainage culverts and on underground water pipelines operated by Metropolitan Water District.


















More
Freeway & Roadway
Projects
Have a question?
Want to work with us?
Have a question?
Want to work with us?
Fountain Valley (Head office)
17800 Newhope Street
Suite B
Fountain Valley, CA 92708
(714) 751-3826
Inland Empire
765 North Main Street
Suite 136
Corona, CA 92880
(714) 751-3826
San Francisco Bay Area
3541 Investment Boulevard
Suite 4
Hayward, CA 94545
(510) 562-8833
San Diego
820 Los Vallecitos Boulevard
Suite H
San Marcos, CA 92069
(760) 736-8222
At Earth Mechanics Inc. (EMI), your privacy is our priority. We do not collect or use your personal information for marketing purposes. All communications via SMS are strictly conversational in nature and initiated based on your interactions with EMI.
By providing your phone number, you consent to receive occasional, conversational SMS messages from Earth Mechanics Inc. Message frequency may vary, with an average of 1–2 messages per month. SMS numbers are never sold, shared, or disclosed to third parties without your explicit consent, except as required by law. All personal data, including SMS correspondence, is stored securely and handled in accordance with our privacy standards. We do not transfer your information to external organizations under any circumstances unrelated to legal compliance.
This website may include embedded content (e.g., videos, images, or articles) from third-party websites. Such content behaves as if you visited the third-party site directly. These websites may collect data, use cookies, and track your interaction with the embedded content—especially if you are logged in to their platform.
Some media assets used on this site, including video content, are licensed from Adobe Stock under appropriate licensing terms. These assets are used in compliance with Adobe’s Enhanced License, and no attribution is required.
If you have any questions about this policy or your data privacy, please contact us at info@earthmech.com.
Fountain Valley (Head office)
17800 Newhope Street
Suite B
Fountain Valley, CA 92708
(714) 751-3826
Inland Empire
765 North Main Street
Suite 136
Corona, CA 92880
(714) 751-3826
San Francisco Bay Area
3541 Investment Boulevard
Suite 4
Hayward, CA 94545
(510) 562-8833
San Diego
820 Los Vallecitos Boulevard
Suite H
San Marcos, CA 92069
(760) 736-8222
At Earth Mechanics Inc. (EMI), your privacy is our priority. We do not collect or use your personal information for marketing purposes. All communications via SMS are strictly conversational in nature and initiated based on your interactions with EMI.
By providing your phone number, you consent to receive occasional, conversational SMS messages from Earth Mechanics Inc. Message frequency may vary, with an average of 1–2 messages per month. SMS numbers are never sold, shared, or disclosed to third parties without your explicit consent, except as required by law. All personal data, including SMS correspondence, is stored securely and handled in accordance with our privacy standards. We do not transfer your information to external organizations under any circumstances unrelated to legal compliance.
This website may include embedded content (e.g., videos, images, or articles) from third-party websites. Such content behaves as if you visited the third-party site directly. These websites may collect data, use cookies, and track your interaction with the embedded content—especially if you are logged in to their platform.
Some media assets used on this site, including video content, are licensed from Adobe Stock under appropriate licensing terms. These assets are used in compliance with Adobe’s Enhanced License, and no attribution is required.
If you have any questions about this policy or your data privacy, please contact us at info@earthmech.com.
Fountain Valley (Head office)
17800 Newhope Street
Suite B
Fountain Valley, CA 92708
(714) 751-3826
Inland Empire
765 North Main Street
Suite 136
Corona, CA 92880
(714) 751-3826
San Francisco Bay Area
3541 Investment Boulevard
Suite 4
Hayward, CA 94545
(510) 562-8833
San Diego
820 Los Vallecitos Boulevard
Suite H
San Marcos, CA 92069
(760) 736-8222
At Earth Mechanics Inc. (EMI), your privacy is our priority. We do not collect or use your personal information for marketing purposes. All communications via SMS are strictly conversational in nature and initiated based on your interactions with EMI.
By providing your phone number, you consent to receive occasional, conversational SMS messages from Earth Mechanics Inc. Message frequency may vary, with an average of 1–2 messages per month. SMS numbers are never sold, shared, or disclosed to third parties without your explicit consent, except as required by law. All personal data, including SMS correspondence, is stored securely and handled in accordance with our privacy standards. We do not transfer your information to external organizations under any circumstances unrelated to legal compliance.
This website may include embedded content (e.g., videos, images, or articles) from third-party websites. Such content behaves as if you visited the third-party site directly. These websites may collect data, use cookies, and track your interaction with the embedded content—especially if you are logged in to their platform.
Some media assets used on this site, including video content, are licensed from Adobe Stock under appropriate licensing terms. These assets are used in compliance with Adobe’s Enhanced License, and no attribution is required.
If you have any questions about this policy or your data privacy, please contact us at info@earthmech.com.
Fountain Valley (Head office)
17800 Newhope Street
Suite B
Fountain Valley, CA 92708
(714) 751-3826
Inland Empire
765 North Main Street
Suite 136
Corona, CA 92880
(714) 751-3826
San Francisco Bay Area
3541 Investment Boulevard
Suite 4
Hayward, CA 94545
(510) 562-8833
San Diego
820 Los Vallecitos Boulevard
Suite H
San Marcos, CA 92069
(760) 736-8222
At Earth Mechanics Inc. (EMI), your privacy is our priority. We do not collect or use your personal information for marketing purposes. All communications via SMS are strictly conversational in nature and initiated based on your interactions with EMI.
By providing your phone number, you consent to receive occasional, conversational SMS messages from Earth Mechanics Inc. Message frequency may vary, with an average of 1–2 messages per month. SMS numbers are never sold, shared, or disclosed to third parties without your explicit consent, except as required by law. All personal data, including SMS correspondence, is stored securely and handled in accordance with our privacy standards. We do not transfer your information to external organizations under any circumstances unrelated to legal compliance.
This website may include embedded content (e.g., videos, images, or articles) from third-party websites. Such content behaves as if you visited the third-party site directly. These websites may collect data, use cookies, and track your interaction with the embedded content—especially if you are logged in to their platform.
Some media assets used on this site, including video content, are licensed from Adobe Stock under appropriate licensing terms. These assets are used in compliance with Adobe’s Enhanced License, and no attribution is required.
If you have any questions about this policy or your data privacy, please contact us at info@earthmech.com.