HOW WE STARTED: Gary King and Sean Connaghan, Partnered in 2015 to start their own civil underground company. Both accomplished in their trade with a combined 50 plus years of experience. From road building , commercial site prep, to industrial underground projects. ''No Job is too big, or too small". Gary recently took over os owner and leader of American Underground in 2019. 

WHO WE ARE: We are a service company that provides our customers cost effective excavation services with, safety and attention to detail before we even start.  Our experience has shown us that this will breed a natural, positive environment of quality and communication, focusing on schedule and budget at all times. We will create solutions for our customers' everyday challenges. We are dedicated to our customers with their utmost needs and wants in mind.

OUR MISSION STATEMENT: American Underground is committed to long-term customer satisfaction. To achieve this goal, we are continuously working harder and smarter with more dedication and resolve each and every day, without ever compromising our integrity, and always making sure safety is our number one goal each and every day.


Affilliations and Services

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We provide the full range of excavation and underground utility services. This includes but not
limited too :

Certified DEQ Septic System Installer

 site work

Excavation, Utilities & Selective Forestry Services
 road improvement projects
 underground utilities - sewer, storm and water lines
 drainage solutions
 grading
 and civil engineering services

No project is too big or too small, and AU has extensive experience working with residential,
commercial and municipality clients.

Meet The Team




With over 27 years’ experience in the civil construction field, working with excavation companies large
and small, Gary decided to take that experience and passion for the industry, and formed American
Underground in 2015. Having grown up in rural Willamette Valley, being raised on his family’s grass
seed farm, Gary learned early on the importance of what are today his core beliefs: Honesty, Integrity
and Communication. He has taken these values with him throughout his career, and truly prides himself
on providing these disciplines to every client.
When Gary is not out on the job site or in the office, you will find him on his horse or on the lake with
family and friends.

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Ryan P

Chief Estimator and Project Manager

Ryan brings over 20 years experience in the civil construction field. From the Portland area, Ryan grew
up doing demolition, excavation and underground utilities, beginning in the 1990’s. With this extensive
history, he not only brings expertise knowledge in estimating, engineering and management, but also a
working knowledge of the day to day processes in the field. Ryan encourages and facilitates positive
business development working with local construction projects, general contractors and developers and
the community.
He holds a MBA and a Bachelors Degree in Education.
Ryans Quote: “If you enjoy your work, then you never work another day in you life.”

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Ryan  D

Lead Foreman

Ryan began his career in the civil construction industry after a long history of farming. Whether working
alongside his family, or adding his knowledge to large-high production farms throughout the Willamette
Valley, Ryan’s work ethic and integrity lead him to excel in all he did. This strong work ethic and
attention to productivity that he learned early on, has followed with him and has made him an integral
member of the AU Team. With effective communication and attention to detail, as well as assuring
projects run safely and on -time, Ryan coordinates AU projects large and small.
On his off time – Ryan enjoys the finer things in life……motorcycles, hunting and his 3 canine



Member/Office Administrator

Wendy, chief office administrator came to AU after an extensive history of administrative work within
the dental industry. She provides thorough, efficient and timely results within all areas of accounts
receivables, payables and human resources. Having been with AU since its formation, Wendy brings
trusted knowledge and leadership to our company!


Salem Residential Development
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Tillamook Forest Land Slide 


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Skyline Blvd. Subdivision
Warehouse Upgrade 
Red Leaf Multi-Housing
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Harmony Road Storage
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VP Residential
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Regis St Improvement Project City of Stayton

Contact Us

P.O. Box 160 Sublimity, OR 97365 Gary@americanundergroundllc.com  |  Tel: 503--687-2670