Call Us
619-276-4401

Our Capabilities

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Marine Construction

Industrial Commercial Construction

Environmental Mitigation/ Reclamation / Habitat Restoration

Heavy Civil / Earthwork

Dredging

Contact Us
619-276-4401

Our Blog

October 30, 2025

In large-scale industrial construction, time and coordination often define success. Every project involves a complex interplay of engineering, logistics, procurement,...

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September 30, 2025

Coastlines are where land and water meet in their most dramatic form, constantly shifting, endlessly beautiful, and, at times, incredibly...

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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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Address
10108 Riverford Rd. Lakeside, CA 92040

Email Us
info@marathonsd.com

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