play fileds, softball fields, recreation parks

Planning / Schematic Design

play fileds, softball fields, recreation parks

The success of any project lies heavily on the thoroughness of the initial plan.

We partner with school districts, park districts, health care facilities and private developers to maximize their available space and project funds. Our engineers take a holistic approach to every project and draw on the expertise of a variety of in-house sub-disciplines to provide input on specialty issues, existing site conditions, regulatory requirements, and budgeting constraints.

We offer:

  • Master Site / Campus Planning
  • District-Wide Planning
  • Site Feasibility Studies
  • Property Evaluation Report / Property Condition Assessment
  • Utility Planning
  • Design Development
  • Pavement Rehabilitation Programs
  • Public Hearings

Water Resources

GHA's Water Resources Team are experienced and insightful, contributing key services necessary for success in a wide variety of engineering projects.

Our water resource engineers specialize in analyzing and designing stormwater detention and conveyance systems, including work within the floodplain. In addition to site development, our engineers work with regulatory agencies to prepare and monitor compliance of stormwater and floodplain ordinances, and collaborate with our Transportation Division on roadway improvement projects. We keep abreast of local and regional stormwater requirements and utilize the most current industry-standard stormwater modeling software.

Our staff also designs green, sustainable stormwater management improvements according to a client’s particular need.

We offer:

  • Stormwater Detention and Conveyance Systems
  • Hydrologic and Hydraulic Modeling
  • Location Drainage Studies and Investigations
  • Floodplain Management
  • Stormwater and Floodplain Ordinance Development and Enforcement
  • Storm Sewer Maintenance and Rehabilitation
  • Streambank Restoration
  • Best Management Practices
    • Rain Gardens
    • Permeable Pavement
    • Vegetated Bioswales

Construction documents, final engineering

Construction Engineering

Our engineering team works tirelessly on behalf of our clients and is dedicated to careful project management, the latest technological advances and monitoring of the construction process.

Our field staff represents clients in dealings with contractors, cooperating governmental agencies, the traveling public and the taxpayer. It is our practice to collaborate with the construction industry to achieve maximum efficiency in producing a quality product. We are devoted to being proactive and keeping an open line of communication with you and the community.

Each of our construction staff is equipped with state-of-the-art equipment required for the most efficient and cost-effective systems for delivering timely, budget-sensitive results. Our construction phase services are provided by licensed professional engineers, career-degreed professionals and technicians with a wealth of experience and knowledge in all types of public and private site construction.

We offer:


With our expertise in construction processes and documentation, our field staff can fulfill the requirements of state, county and local governmental agencies. We stay up-to-date with the most current design and construction standards in order to make expedient field changes as required.

Construction Observation

Site observation is imperative to construct a site which meets or exceeds local and federal standard specifications. We will attend all construction meetings with the design team and contractors, prepare field sketches and change orders, and review final payment processes.

NPDES Compliance Monitoring

We have certified National Pollutant Discharge Elimination Systems (NPDES) compliance monitoring personnel who verify that project sites meet or exceed best management practices as stated in ILR10 permit applications. Our field personnel inspect, document, report and photograph the relevant construction activity.

Environmental Consulting


Regulatory requirements are tightening in an effort to protect our natural resources. Our environmental scientists work side-by-side with our engineers from the initial planning phase through construction closeout to ensure our project designs are proactive and sustainable. We provide on-going consulting services to municipalities and townships to help maintain compliance with state stormwater requirements. And we even prepare grant applications and manage funded programs – just one more way we help you save money.

We offer:

  • Stormwater Pollution Prevention Plan (SWPPP) Preparation and Monitoring
  • Stormwater Management Plan Preparation and Compliance Monitoring
  • Municipal Separate Storm Sewer System (MS4) Program Preparation and Compliance Monitoring
  • Wetland Services
    • Wetland Delineations, Permitting and Mitigation
    • Wetland Monitoring Reports and Management Plans
    • Wetland Mitigation Banking
    • Coordination of Threatened and Endangered Species Studies
  • Forestry Services
    • Tree Inventories, Valuation Appraisals and Preservation
    • Tree Risk and Hazard Evaluations
    • Urban Forestry
    • Emerald Ash Borer (Pest) Management Plans
    • Forestry Management Plans
  • Environmental Assessments (EAs)
  • Natural Resource Inventories
  • Grant Application and Management
    • Federal, State and Local Funds
    • Environmental, Recreation, Water Resources and Transportation Projects

site design, permitting, municipal relationships


site design, permitting, municipal relationships

Our established relationships with government agencies help alleviate frustration during the permitting process.

The number of agencies with jurisdiction over even a small project, and the regulations and requirements involved, can be overwhelming. Gewalt Hamilton developed long-term relationships with federal, state and local agencies with jurisdiction over your project, providing us with direct contacts for questions or concerns.

We work with:

  • Federal Agencies
    • US Environmental Protection Agency (EPA)
    • US Army Corps of Engineers (USACE)
    • US Fish and Wildlife Service
    • Federal Highway Administration (FHWA)
  • State Agencies
    • Illinois Environmental Protection Agency (IEPA)
    • Illinois Department of Natural Resources (IDNR)
    • Illinois Department of Public Health (IDPH)
    • Illinois Historic Preservation Agency (IHPA)
    • Illinois Department of Transportation (IDOT)
  • County / Regional Agencies
    • Stormwater Management Agencies
    • Soil and Water Conservation Districts
    • County Divisions of Transportation
    • Township Highway Departments
  • Local Governments
    • Municipal Departments
    • Municipal Boards and Councils

Retail Site design, parking lots, retail civil engoneering

Clients / Markets

Retail Site design, parking lots, retail civil engoneering

The type of client typically drives the development process for any project.

Publicly funded improvements led by park districts, school districts or other civic agencies can fall under significant public scrutiny and often require stakeholder input. Accordingly, our approach to the project development process is driven by our awareness of our client’s accountability to its constituents.

Privately funded projects are frequently under ambitious schedules, which require accelerated design and permitting.

Gewalt Hamilton’s professionals are well versed in federal, state and local regulatory requirements, minimizing the need for revisions and expediting the review process. Our experience, combined with our municipal consulting background, provides us with unique insight into the planning and development nuances specific to each clients.

We offer:

  • Education / Campus
    • K-12 Public and Private
    • Colleges and Universities
  • Parks and Recreation
    • Active and Passive Recreation
    • Natural and Synthetic Turf Athletic Fields
    • Golf Courses
  • Health Care
    • Hospitals
    • Assisted Living Facilities
    • Continuing Care Facilities
    • Hospice
    • Medical Office Buildings
  • Government Facilities
    • Village / City Hall
    • Police Station
    • Fire Station
    • Public Safety Facility
    • Library
  • Commercial / Retail
    • Corporate Headquarters / Branch Offices
    • Warehouse / Industrial
    • Big-box Retail
    • Restaurants
    • Pharmacies
    • Banks
    • Mixed-use Developments
  • Residential
    • Apartment / Condominium
    • Mixed-use Residential
    • Residential Subdivision