Environmental & Civil Engineering Consultants

SMC is a full service civil and environmental engineering firm locally owned and based in Oklahoma City. Our services include infrastructure design of commercial and residential developments. Our projects include retail developments, hospitals, multi-residential complexes, grocery and convenience stores. We provide municipal design services for water and sanitary sewer systems, storm water management, street design and client representation with local/federal agencies.

SMC Consulting Engineers, P.C. has the professional staff that you can depend on for the completion of your next project. We are well trained and proficient in the latest software. SMC has years of experience helping communities stay within their budget without compromising quality.

At SMC, we take pride in our qualifications, we attribute our longevity to our uncompromising dedication to our clients. We provide practical and expedient engineering services. In short, Service, Quality, and Integrity are our philosophy in creating successful outcomes for our clients.

Our Work

Where Precision Meets Quality

Our Services

Development, Municpal, & Environmental Services

Development Services

SMC is recognized as an industry leader in the planning and design of Residential Subdivisions, Commercial Retail Developments, Restaurants, Hospitals, Assisted Living Centers, Schools, Churches, and Apartments.

SMC’s primary goal is to provide effective designs to meet your needs. Design excellence, high quality, time efficiency, and accountability from project start to finish are benefits you can expect from our extensive experience.


Municipal Services

SMC has designed new treatment plants and the expansion of existing facilities at more than 100 locations in Oklahoma. SMC has also designed thousands of miles of water and sewer lines across the state.

We have years of experience helping communities stay within their budget without compromising quality. SMC’s commitment means that years after a new or expanded facility begins operation, you can expect and receive the dedication your project deserves.


Environmental Services

SMC retains several key personnel with extensive environmental experience. These engineers provide a variety of services from planning and design to oversight and remediation to ensure your project’s compliance with regulations that are increasingly being strictly enforced.

SMC has provided environmental services for nearly every project we complete. This experience allows our engineers to consistently interact with inspectors, developers, and contractors to ensure that our environmental plans are not only up to date but understood by all parties.


Veritas Development

“OAK is among the most complex projects completed in Oklahoma in the last decade and it required an experienced team including multiple design firms, substantial utility and public work coordination, and much more to make a reality.  But it only took one civil engineer: SMC.  Terry Haynes and his team are unquestionably the finest civil shop in the region, and we could not have navigated the scale and complexity of our project while maintaining SMC’s exacting attention to detail with anyone else.  There’s no one else I trust within this trade as much as Terry Haynes and SMC.”

Ryan McNeill | Veritas Development

First Water Contracting

“I have done business with SMC Consulting Engineers for two decades and they are always helpful and courteous. Their professionalism shows in everything they do.”

Donnie Dorn, Senior Estimator | First Water Contracting, LLC

Silver Star Construction

“I have worked with SMC for over 10 years. The team is by far the most helpful in getting questions answered quickly, issues in the field worked through as a team, and are highly respected by those of us in the field using their designs each day. They are my go-to engineer when I have general questions that I just don’t have an answer to, and have been a big key in my learning and development in the construction industry. They truly care about the designs they are putting out and the clients they work for and with.”

Trish Morris, Project Manager | Silver Star Construction

Ideal Homes & Neighborhoods

“SMC’s quality work and attention to detail sets the industry standard for Civil Engineering. They leverage both their unparalleled experience and commitment to relationships to deliver projects that I can depend on.”

Zack Roach, VP of Development | Ideal Homes & Neighborhoods

H&H Plumbing & Utilities

“SMC has a talent to be able to work seamlessly with owners and contractors to get the project done correctly and on time. SMC has decades of experience working with municipalities and can get projects approved that others can’t. SMC built such a reputation with General contractor and contractors that they can trust and rely on their design without worries.”

Chad Madden, Project Manager | H&H Plumbing & Utilities

Home Creations

“Our company has had the pleasure of working with SMC for over 20 years. The SMC team is composed of professionals who love what they do, and are committed to and have a great knowledge base in both engineering and design. They utilize those skills to help create top notch projects for their clients. I would happily recommend them to anyone looking for a great engineering firm.”

Hossein Farzaneh | Home Creations

Landmark Fine Homes

“I highly recommend SMC Consulting Engineers for any construction project. Their team’s expertise, attention to detail, and commitment to delivering exceptional results made our project a success.”

Houston Sneed, Director of Land Development | Landmark Fine Homes

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