Sandra Sonnen

Welch Comer & Associates, Inc. offers a range of professional civil engineering and surveying services including transportation, municipal infrastructure, planning, financing, design, and construction services. Members of the firm hold professional registration, collectively, in three states throughout the Northwest. Welch Comer & Associates, Inc. has completed hundreds of projects for public and private clients including local and state governments, public utility districts, municipalities, residential, commercial and industrial clients in Idaho, Washington, and Montana. Repeat clients are the foundation of Welch Comer’s professional practice. Our firm is proud to have been the recipient of several regional and national awards for ENGINEERING EXCELLENCE.