60 Years of Experience

Clapsaddle-Garber Associates (CGA)

From Concept Through Completion,
We Are Your Engineering & Land Surveying Firm

Whether you’re building something new, updating existing infrastructure, or applying for a grant, our licensed experts are ready to help. When you work with CGA, one project manager will be assigned to your project from start to finish, ensuring responsiveness and clear communication.

We are small enough to give our clients individual attention but big enough to offer services for every aspect of your project, including planning, funding applications, surveying, design, bidding, and construction services.

What We Do

CGA Services

Engineering Iowa Communities

Iowa Experience

Over the last 60 years, CGA has completed over 12,000 surveys and projects in 240 cities and 71 counties in Iowa.

Airports · Colleges & Universities · Hospitals · Restaurants & Retail Establishments · Commercial, Residential & Municipal Sites · Parking Lots · Roads · Streams, Rivers & Ponds


Unique Site Designs & Green Initiatives

CGA received the Engineering Achievement Award from the American Council of Engineering Companies in Iowa in 2018 for the unique engineering design of the Grand Crossing Condominiums’ parking lot in downtown Waterloo.

The design incorporates numerous green initiatives, including:

  • Stormwater Management
  • Permeable Pavers
  • Infiltration
  • Bio-Retention Ponds

In addition, this design:

  • Reduces Water Runoff
  • Prevents Flooding
  • Helps Filter Pollutants from the Water

Engineering Achievement
Award Video

Over 60 years
of experience.

View Our Portfolio >>