65 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 65 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 Approaches to Solve Problems

CGA was named an Honor Award recipient for the 2021 Engineering Excellence Awards from the American Council of Engineering Companies of Iowa. The CGA team submitted their work on the Story City Historic Swinging Bridge Project in October 2020. The project involved numerous initiatives to mitigate future flooding events and bringing the structure up to code for safety purposes; both structurally and ergonomically.

The project included numerous initiatives to protect this historic monument, including:

  • Custom Protective Steel End Caps
  • Recessing Structural Fasteners into the Beams
  • Marine-Quality Lighting
  • Jacketed Wiring

The design was able to incorporate the preservation of:

  • Original Stone Towers
  • Original Cable
  • Aesthetics of the Bridge

Engineering Achievement
Award Video

Over 65 years
of experience.

View Our Portfolio >>