- Mon - Fri
8:00 am - 5:00 pm
General InfoClapsaddle-Garber Associates (CGA) is a civil engineering and land surveying firm based in Marshalltown, Iowa. We have provided a full range of quality engineering and land surveying services throughout Central Iowa since 1959. Our staff includes Professional Engineers, Licensed Land Surveyors, and a Real Estate Broker. CGA provides a broad range of services to governmental, industrial, and private clients in various disciplines of engineering, construction administration, planning, and land surveying. Our services include:
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