Call Us
619-276-4401

Our Capabilities

ship icon

Marine Construction

Industrial Commercial Construction

Environmental Mitigation/ Reclamation / Habitat Restoration

Heavy Civil / Earthwork

Dredging

Contact Us
619-276-4401

Our Blog

June 2, 2026

🌊 How Marine Construction Crews Maintain Water Quality During Active Projects Silt curtains and controlled work zones help keep sediment...

Read more
May 1, 2026

Why Timing Matters in Coastal Construction Projects Coastal construction is not scheduled the same way as inland work. On marine...

Read more
See more

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

Marathon Construction logo

Address
10108 Riverford Rd. Lakeside, CA 92040

Email Us
info@marathonsd.com

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