Complete heavy civil construction solutions for government agencies, municipalities, and private clients across the United States.
Conrad Donald Construction offers comprehensive services across the full project lifecycle — from initial feasibility and environmental assessment through engineering design, construction, and post-completion inspection. Whether you need a new road built from scratch or an aging bridge rehabilitated, we have the expertise and equipment to deliver.
We handle all phases of road construction for municipal, county, state, and federal clients. From initial subgrade preparation and base compaction to asphalt paving and traffic marking, our crews deliver smooth, durable roadways designed for decades of service.
Our road construction services cover urban streets, rural county roads, collector roads, arterials, and access roads for commercial and industrial developments.
Our bridge division specializes in the design, fabrication, and construction of all bridge types — from simple single-span culvert crossings to complex multi-span cable-stay structures. We manage everything from foundation drilling through deck finishing and railing installation.
Every bridge we build is engineered to meet AASHTO standards and designed to handle projected traffic loads with appropriate safety factors for a minimum 75-year design life.
Large-scale highway projects require exceptional logistical coordination, specialized heavy equipment, and a deep understanding of traffic management during active construction. Our highway division has the experience and resources to handle multi-lane interstate work safely and efficiently.
From interchange design-build to highway widening, median construction, and managed lanes — we deliver highway projects that improve mobility for hundreds of thousands of daily users.
Aging infrastructure is a nationwide challenge. Our structural rehabilitation team assesses, designs, and executes repairs and full reconstruction of roads and bridges that have exceeded their design life or suffered structural deterioration due to traffic, weather, or deferred maintenance.
We use advanced non-destructive evaluation techniques to accurately assess structural condition and develop the most cost-effective rehabilitation strategy for each project.
Effective stormwater management is critical to the long-term performance of any road or bridge project. Our drainage specialists design and install comprehensive drainage systems that protect pavement integrity and prevent flooding in surrounding communities.
We coordinate all underground utility work including storm sewers, sanitary sewers, water mains, and conduit installation during road and bridge construction to minimize disruption and future pavement cuts.
Our in-house civil engineering team provides full planning, design, and permitting support for infrastructure projects of all scales. We work with public agencies and private developers to navigate regulatory requirements and produce construction-ready design documents.
Our engineers are experienced with FHWA, state DOT, and local agency standards, and can deliver complete design packages from conceptual layout through final construction drawings.
A structured approach that keeps projects on schedule, on budget, and to specification.
We meet with you to understand your project goals, timeline, and budget.
Site survey, geotechnical study, and environmental review to inform design.
Full design development, permitting, and detailed construction drawings.
Expert execution with daily progress reports and active quality control.
Final inspection, punch-list closeout, and project documentation handover.