Business Details
50+ Years
experience
Your Trusted Civil Engineering Partner in California
Founded in 1953, Mac Kay & Somps has established itself as a leader in civil engineering, land planning, and surveying across Northern and Central California. Our firm has supported home builders, developers, and public agencies in delivering infrastructure projects with a focus on efficiency, quality, and timely execution. With decades of experience, we integrate engineering, planning, and surveying expertise to navigate complex land development challenges. Our reputation for producing precise construction documents and securing timely approvals reflects our commitment to client success. The longevity of our team underscores a collaborative culture that prioritizes innovation and reliability.Clients consistently recognize our ability to deliver projects seamlessly, from concept planning to final construction. We maintain strong relationships with local jurisdictions, ensuring streamlined project approvals and adherence to regulatory standards. Our multidisciplinary approach addresses roadway design, stormwater management, site planning, and more, tailored to residential, commercial, and public infrastructure needs. With offices in Pleasanton and Roseville, California, we continue to serve as a trusted partner for land development projects. Our dedication to excellence has solidified our position as one of Northern Californias most respected civil engineering firms.
Services
Civil Engineering
Land Planning
Land Surveying
Stormwater Management
Site Design
Details
- Year established: 1953
Highlights and features
- We have over 70 years of experience in civil engineering and land development.
- Our team offers comprehensive services spanning engineering, planning, and surveying.
- We maintain strong relationships with local jurisdictions for streamlined approvals.
- Our projects consistently meet deadlines and exceed client expectations.
- We prioritize client collaboration and transparent communication.
What people say
Excellent customer service
Outstanding commitment
Experts in the industry
Efficient plan checks
Timely approvals
Services
Civil Engineering
Mac Kay & Somps provides comprehensive civil engineering services for land development projects. Our expertise includes roadway design, utility infrastructure, and public facility planning. We ensure projects meet regulatory standards while optimizing cost efficiency and construction timelines.
Land Planning
Our land planning services focus on master-planned communities, residential subdivisions, and commercial site layouts. We integrate zoning requirements with client goals to create functional, marketable developments that align with local regulations and environmental standards.
Land Surveying
We offer precise land surveying solutions including ALTA surveys, topographic mapping, and construction staking. Our team uses advanced technology like drones and GIS systems to deliver accurate data for project design and legal documentation.
Stormwater Management
Our stormwater management services address flood control, conveyance systems, and low-impact development strategies. We design sustainable solutions that comply with environmental regulations while mitigating water-related risks for infrastructure projects.
Site Design
We specialize in site design for residential, commercial, and mixed-use developments. Our approach balances aesthetic appeal with functional requirements, ensuring efficient land use and compliance with municipal design guidelines.
People
Mark McClellan
Principal
With decades of experience, Mark leads engineering projects at Mac Kay & Somps, ensuring technical excellence and client satisfaction across complex land development initiatives.
Paul R. Hart
Principal
Paul oversees quality assurance and regulatory compliance, leveraging his expertise in civil engineering to maintain the firm's high standards for project delivery.
Chris Ragan
Principal
Chris specializes in infrastructure design, guiding teams to deliver innovative engineering solutions that balance client needs with jurisdictional requirements.
Donna Pasquantonio
Operations Manager
Donna manages planning operations, ensuring seamless coordination between design teams and clients to achieve efficient project approvals and execution.
Steve Smith
Chief Engineering Manager
Steve leads engineering teams in Roseville, focusing on technical accuracy and timely delivery of construction documents for large-scale infrastructure projects.
Questions
What services does MacKay & Somps offer?
We provide civil engineering, land planning, surveying, stormwater management, and site design services for residential, commercial, and public infrastructure projects.
How long has MacKay & Somps been in business?
The firm was founded in 1953 and has served Northern and Central California for over 70 years.
What areas do you serve?
We operate throughout Northern and Central California, with offices in Pleasanton and Roseville.
How do you ensure project approvals?
Our team maintains strong relationships with local jurisdictions and leverages deep regulatory expertise to streamline the approval process.
Can you handle large-scale developments?
Yes, we specialize in master-planned communities and complex infrastructure projects from concept through construction.
