Business Details
13 Years
experience
Your Partner in Civil Engineering & Infrastructure Innovation
Hennessey Engineers has been delivering comprehensive civil engineering solutions since 2013, specializing in public infrastructure projects that transform communities across Southeast Michigan. Our team combines technical expertise with a deep commitment to stakeholder collaboration, ensuring every project aligns with local needs and engineering standards. With decades of collective experience, we handle everything from land redevelopment and transportation systems to stormwater management and grant acquisition.Our AASHTO-accredited laboratory supports rigorous quality control, while our values of reliability, accessibility, and family-driven service set us apart. We pride ourselves on transparent communication, innovative problem-solving, and a legacy of improving municipal and private developments through precision engineering and community-focused design.
Services
Civil Engineering
Construction Management
Program Management
Land Surveying
Transportation Engineering
Stormwater Management
Municipal Engineering
Field Testing
GIS Mapping
Grant Assistance
Details
- Year established: 2013
Highlights and features
- Decades of experience in Southeast Michigan municipal projects
- AASHTO-accredited laboratory ensures testing precision
- 24/7 client accessibility for urgent infrastructure needs
- Stakeholder-driven solutions balancing community and technical demands
- Award-winning track record in transportation and stormwater management
Associations and certifications
- AASHTO
- ASTM International
What people say
Exceeds expectations
Timely execution
Professional team
Creative solutions
Positive community impact
Services
Civil Engineering
Our civil engineering services focus on municipal and private infrastructure projects, including roadway design, water distribution systems, and site development. We combine technical expertise with local ordinance compliance to deliver cost-effective, sustainable solutions. Our team ensures projects meet regulatory standards while addressing community-specific challenges.
Construction Management
We provide end-to-end construction management, from contract administration to quality control inspections. Our services include shop drawing review, payment recommendation preparation, and on-site record keeping. This ensures adherence to timelines, budgets, and technical specifications throughout the project lifecycle.
Land Surveying
Our land surveying division uses GPS and electronic data collectors to deliver boundary surveys, topographical mapping, and ALTA/NSPS standards-compliant services. We integrate field data with design workflows to improve project accuracy and reduce costs for commercial and residential developments.
Stormwater Management
We design comprehensive stormwater systems including detention basins, pump stations, and erosion control measures. Our AASHTO-accredited laboratory supports material testing to ensure long-term system performance. Services comply with NPDES permitting requirements and environmental regulations.
Program Management
Our program management services combine financial expertise with engineering oversight for large-scale infrastructure initiatives. We offer grant application assistance, compliance reporting, and stakeholder engagement strategies to ensure transparent execution of municipal development programs.
People
Joan Hennessey
President
Joan leads with a legacy of community-focused engineering, leveraging accounting expertise to secure federal grants for infrastructure projects. She prioritizes workplace culture and sustainable community development through strategic leadership.
John Hennessey
Vice President
With lifelong civil engineering experience, John oversees technical operations, emphasizing quality control and community impact. His expertise spans infrastructure rehabilitation and recreational development projects across Southeast Michigan.
Alan Cruz
Project Manager
Alan specializes in municipal engineering projects, combining architectural heritage with civil engineering precision. He focuses on transforming design concepts into functional infrastructure that enhances public spaces.
Elizabeth Harding
Project Manager
Elizabeth leads transportation engineering initiatives with expertise in road safety and traffic flow optimization. Her work emphasizes public safety improvements through data-driven design solutions.
Michael Manthei
Survey Group Manager
Michael directs land surveying operations, specializing in boundary re-establishment and property mapping. His technical skills combine historical research with modern geospatial technology for accurate land development solutions.
Questions
What geographic areas do you serve?
We specialize in Southeast Michigan, including Wayne, Oakland, and Washtenaw counties, with recent projects in Detroit, Taylor, and Romulus.
Are your engineering services accredited?
Yes, our materials testing laboratory holds AASHTO accreditation and follows ASTM standards for quality assurance in construction projects.
What infrastructure projects do you handle?
We manage roadway improvements, stormwater systems, water distribution networks, and municipal facility developments from planning through construction.
Can you assist with grant-funded projects?
Yes, our team has secured over $100M in federal grants for infrastructure improvements, including HUD compliance and reporting requirements.
How do you ensure project quality?
We implement AASHTO-standard testing protocols, regular field inspections, and comprehensive QA/QC processes for all engineering deliverables.
What transportation engineering services do you offer?
We provide roadway design, traffic studies, work zone safety plans, and transportation management solutions for municipal and state projects.
