Alliant has been sharing expertise and experience to clients’ projects for over 25 years. From land surveys and permitting to contract administration and construction observation, our team offers innovative solutions to our clients’ biggest challenges. Review our full roster of service offerings below, and contact us today for additional information about how we can address your needs.

Civil Engineering

Our team helps clients navigate all of the complex elements that must be considered to complete their projects. The strong relationships we’ve cultivated with private sector clients and public agency representatives ensure our clients’ interests are met.

Civil Engineering Services

  • Due diligence
  • Site analysis/feasibility/planning
  • Design development/budgeting
  • Entitlements
  • Construction documents
  • Stormwater management design
  • Grading, drainage, NPDES/SWPPP design and inspection
  • Permitting and agency coordination
  • Construction administration and oversight
  • Project closeout and certification

Construction Services

Whether private or public, every infrastructure project requires expert oversight to achieve successful completion. Alliant’s history of construction administration for projects large and small allows our team to work with contractors, consultants, and the public to guide each step of the process while staying within budgetary and scheduling constraints. These tasks include:

Construction Services

  • Constructability reviews
  • Contract development
  • Contract administration
  • State and federal aid construction documentation
  • Public and private utility coordination
  • Construction observation

Environmental Services

Alliant’s Environmental Group is dedicated to protecting and restoring natural habitats as an important way to preserve our environment for future generations. It is essential that land development and heavy construction projects are undertaken with appropriate consideration to the surrounding environment. Alliant is here to help our clients understand all the relevant—and often overlapping—regulations related to environmental impacts and assist in making the right choices. To address these issues, Alliant offers a host of environmental services that balance your project’s goals with safeguarding wetlands, waterways, animal habitats, and more.

Environmental Services

  • Environmental planning and documentation
  • Wetland delineation
  • Wetland permits
  • Wetland mitigation and monitoring
  • Ecological restoration
  • Natural resource surveys
  • Invasive species surveys
  • Construction SWPPP design
  • NPDES permit compliance inspection
  • Spill prevention, control and countermeasure plan
  • Construction site management plans
  • Tree inventories

Intelligent Transportation Systems

Alliant has devoted itself to providing solutions that will increase the safety and convenience of travel. Our experience with ITS dates back to our very first project, and we have continued to grow our services and expertise in this area. Building on a history of success, Alliant is committed to introducing new technological solutions to address the challenges facing modern transportation systems.

Intelligent Transportation Systems

  • ITS planning
  • Systems engineering
  • Communications system design
  • System implementation and integration
  • System evaluation
  • System architecture

Landscape Architecture

Through extensive planning and design, we assist clients in improving the community through landscape architecture. Whether it’s a garden or streetscape, our team has the creative and analytical skills to map out an area and design features that will enhance its value, function, and enjoyment by the community. Our team guides clients from start to finish through submitting proper documents with agencies and developing construction plans so the project can be completed without delays or added costs. These tasks include:

Landscape Architecture Services

  • Master planning
  • Site analysis and planning
  • Color presentation drawings and public presentations
  • Agency coordination and submittals
  • Construction drawings
  • Construction administration

Land Survey

Alliant is committed to providing accurate information expediently, whether it is a next-day service construction staking or producing a final plat through the public approval process. We provide a full range of surveying services for our clients in both the public and private sectors. Surveying is often one of the first requirements of a project and it is usually one of the last services at project completion.

Land Survey Services

  • Boundary surveys
    • ALTA/NSPS land title surveys
    • Certificate of survey
  • Topographic surveys
    • Design location/existing conditions survey
    • Hydrographic survey
    • Underground survey (utilities, areaways)
  • Record surveys
    • Subdivision (plat, RLS, CIC, right-of-way plat)
    • Memorial plat (Torrens property)
  • Construction surveys
    • Establish horizontal and vertical site control
    • Staking horizontal and vertical site control
    • Volume measurements

Roadway Design

Creating safe and efficient roads for our community has been a major focus since Alliant’s inception. From planning and preliminary design, to traffic control and work zone safety, our team will make sure clients’ roadway projects are delivered with high-quality work, on-schedule, and within budget.

Roadway Design Services

  • Preliminary design
  • Final design
  • Highway engineering
  • Maintenance of Traffic (MOT) & construction staging
  • Municipal engineering
  • Local Road design (city, county, and state aid)
  • Utilities
  • Construction cost estimating
  • Public involvement


One of the many areas of our team’s expertise includes structural engineering for bridges. Whether a pedestrian or vehicular bridge is needed, we can deliver services that ensure successful implementation from start to finish. This begins with preliminary bridge layouts and scoping studies, carries through designing elements of the structure and construction support, and finishes with providing a load rating. Alliant offers structural engineering expertise across the full life cycle of pedestrian and vehicular bridge structures. This cycle begins with scoping studies and preliminary engineering, through final design and construction support, and on to widening and rehabilitation plans, and load rating. Alliant’s design experience extends beyond bridge design and includes a wide range of supplementary structures. And because all structures must be completed to exacting standards to ensure safety and longevity, our team carries out each project with the utmost attention to detail and quality throughout the process.

Structure Services

  • Prestressed concrete bridge girder design
  • Welded plate steel bridge girder design
  • Single- and continuous-span concrete slabs
  • Multiple-stage bridge construction
  • Pedestrian bridges
  • Bridge ratings
  • Box culverts
  • Noise walls
  • Moment slabs
  • Sign supports

Traffic Engineering

As populations grow, public agencies must accommodate rapidly increasing traffic levels with solutions that prioritize safety and efficiency. Based on our experience, Alliant understands the critical need for thoughtfully developed, designed, and implemented projects that grow infrastructure with a keen eye to the needs of the community.

Traffic Engineering Services

  • Traffic, parking and specialty studies
  • Bicycle and pedestrian facilities planning and design
  • Traffic signal operations and signal timing
  • Traffic modeling
  • Intersection control evaluation
  • Corridor studies
  • Traffic final design
  • Project management

Water Resources

Carrying out a transportation or land development project often means that drainage system design is also required. Our water resources team works seamlessly with our environmental teams to provide feasible stormwater solutions that meet the water quality requirements of each project. We also ensure that the project meets local and regulatory floodplain standards through our relationships with permitting agencies.

Water Resources Services

  • Hydrologic and hydraulic modeling
  • Storm sewer design
  • Culvert design
  • Bridge hydraulics
  • Stream restoration
  • Detention design
  • Water quality management best practices
  • Floodplain analysis and permitting

Learn More Today

Our long list of consulting services provides comprehensive support for our clients throughout the entirety of their project. To see examples of Alliant’s private development and/or public infrastructure work, browse our completed projects. For more information, please contact us.

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