Business Details
49 Years
experience
Trusted Civil and Structural Engineering Solutions in Jefferson County, MO
Founded in 1977, VonArx Engineering has built a legacy of delivering high-quality civil and structural engineering solutions across Missouri. Our client-focused philosophy emphasizes collaboration, integrity, and innovation, ensuring personalized service for every project. With decades of combined experience, our team specializes in transportation systems, storm water management, site development, structural design, and inspection services. We prioritize understanding client needs to create cost-effective, sustainable solutions that exceed expectations. Our commitment to community-driven engineering has fostered long-term relationships and repeat business.Headquartered in Jefferson County, we combine technical expertise with regulatory knowledge to navigate complex projects. From conceptual planning to construction completion, we maintain transparency and accountability at every stage. Our 40+ years of experience in residential and commercial developments demonstrate our adaptability to evolving industry demands. We maintain strong partnerships with local agencies to ensure compliance and efficiency in every project. At VonArx Engineering, our reputation for excellence is built on honesty, technical proficiency, and unwavering dedication to client success.
Services
Transportation Engineering
Storm Water Management
Site Development
Structural Design
Sewer Systems
Details
- Year established: 1977
Highlights and features
- 40+ years of Missouri-focused engineering experience
- Collaborative approach with personalized client service
- Expertise in regulatory compliance and agency relationships
- Comprehensive project delivery from planning to construction
- Proven track record with complex infrastructure projects
Services
Transportation Engineering
Our transportation engineering services address local, state, and federal roadway needs with safety-focused designs. We specialize in intersection improvements, bridge replacements, and pedestrian infrastructure. Our team delivers complete project management from conceptual planning through construction. With decades of Missouri-specific experience, we optimize traffic flow while maintaining environmental compliance. Our solutions enhance community connectivity through modern, sustainable transportation systems.
Storm Water Management
We develop comprehensive storm water solutions balancing environmental protection with infrastructure needs. Our expertise includes floodplain analysis, drainage improvements, and low-impact development. We create FEMA-compliant designs and implement sustainable practices like bio-retention basins. Our team ensures regulatory compliance while protecting property and natural resources. With deep understanding of Missouri's hydrology, we deliver resilient water management systems.
Structural Design
Our structural design services cover residential, commercial, and industrial projects with code-compliant solutions. We specialize in foundation systems, retaining walls, and historic building renovations. Our engineers use advanced analysis tools while maintaining practical construction knowledge. We prioritize safety and durability in every design, from steel structures to wood-frame buildings. Our team ensures structural integrity meets both client needs and community standards.
Sewer & Water Systems
We design and optimize potable water and wastewater systems for public and private clients. Our services include pressure management, pipeline extensions, and regulatory compliance. We work with Missouri American Water and MSD to ensure system efficiency. Our team addresses aging infrastructure challenges with modernization solutions. We combine technical expertise with practical implementation for reliable utility networks.
Structural Inspections
Our certified inspections evaluate residential foundations and manufactured home compliance. With 25+ years of experience, we provide detailed condition reports for real estate transactions. We perform HUD-compliant assessments and issue certification for loan programs. Our team identifies structural deficiencies and recommends cost-effective repairs. We support lenders, realtors, and homeowners with accurate, actionable engineering evaluations.
People
Kelley Vonarx
CEO, Operations & Marketing
Kelley Vonarx leads daily operations and strategic planning with 20 years of business management experience. She oversees project administration and team development while maintaining financial accountability. Her expertise in marketing and human resources drives organizational growth.
David Vonarx
President/Principal
David Vonarx directs engineering operations with 28+ years of civil engineering expertise. A registered Professional Engineer, he specializes in infrastructure projects and technical leadership. His academic background in hydraulics informs complex water system designs. He mentors staff while maintaining hands-on project involvement.
Questions
What engineering services does VonArx offer?
We provide civil and structural engineering for transportation, storm water, site development, structural design, and utility systems across Missouri.
How long has VonArx Engineering been in business?
Since 1977, we've delivered engineering solutions with four decades of Missouri-specific expertise.
Do you handle both public and private projects?
Yes, we serve municipal clients and private developers with equal commitment and expertise.
Can you assist with regulatory compliance?
Our team maintains strong agency relationships and understands local, state, and federal regulations.
What makes VonArx different from other firms?
We combine technical excellence with personalized service and deep community knowledge for tailored solutions.
Do you offer structural inspections?
Yes, we provide foundation assessments and manufactured home certifications for real estate transactions.
