Founded in 1959 by Frank Twehous, Twehous Excavating is a privately-held, 3rd generation construction company specializing in ... earthmoving, highway & civil construction, utility work, heavy hauling, blasting, and more. Twehous has built a team of experienced professionals and a reputation of excellence in the industry. Now over 60 years later, we have approximately 100 employees. With a family atmosphere and an honest, hardworking way of doing business, we have developed partnerships with our customers and work side by side with them until each job is complete. read more