Leaders in providing engineered solutions
for complex underground structures

Aldea specializes in the design and construction of underground structures and has worked on some of the most challenging and important underground infrastructure projects in North America.

Aldea has planned, designed, and constructed tunnel projects for over 20 years.

Year Established


Combined Years of Experience


Award Winning Projects


Tunnel & Trenchless Projects


Completed Length of Tunnel & Trenchless Projects

300,000 feet +

Range of Tunnel Project Diameters (ft)


US Projects (# of States)


Canadian Projects (# of Provinces)


Aldea Staff Global Experience
(# Countries)


Contact Us


info@aldeaservices.com  |  301.355.9703

Aldea leads some of the largest infrastructure programs in the nation, including LA Metro Purple Line Extension, Alaskan Way Viaduct Replacement, Montreal Airport Station, and various major CSO programs.

Aldea has been involved in more than half of the curved microtunnels in North America.

The ALDEA team members have worked in over 36 Countries worldwide. Our Engineers have worked on ground-breaking projects including The Channel Tunnel, Barcelona Metro, Alaskan Way, Singapore Metro, East Side Access, Madrid Metro, California High Speed Rail, Washington Metro, Los Angeles Metro, Doha Metro, Blue Plains Tunnel DC Clean Rivers Project, Riyadh Metro, Dubai Strategic Sewer Tunnels and many other projects across the globe.


Aldea’s vast experience in managing large tunneling and heavy civil engineering projects enables us to provide unrivaled support to our clients and confidence in our work. Our work spans throughout the United States and also extends around the world. We are equipped with the best minds in the industry providing leadership and direction in all facets of heavy civil engineering project management.

We pride ourselves on the quality of our work and the relationships we develop with our clients. Our combination of high caliber skills and positive personalities makes us the best tunnel design company to work for and work with.