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619-276-4401

Our Capabilities

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Marine Construction

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Industrial Commercial Construction

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Environmental Mitigation/ Reclamation / Habitat Restoration

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Heavy Civil / Earthwork

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Dredging

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Contact Us
619-276-4401

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Our Blog

January 30, 2026

Dredging is essential for managing marinas, waterways, and waterfronts, as it removes sediment and debris to ensure safe navigation and...

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January 1, 2026

Restoring a natural habitat is a complex engineering feat that requires more than just moving earth and planting seeds—it requires...

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First
Glance

42

Years in
Operation

450+

Construction Projects
Completed

100%

Family Owned
& Operated

$250 Mil

Bonding
Capacity

Featured clients

US Army Corp of Engineers
Port of San Diego
Caltrans
Naval Facilities Engineering Command
BAE Systems

General Dynamics / NASSCO
SeaWorld San Diego
City of San Diego
Southern California Edison

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10108 Riverford Rd. Lakeside, CA 92040

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info@marathonsd.com

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p. 619-276-4401 / f. 619-276-0717