Established in 1977, State Line Construction Co. is a continuing family enterprise specializing in concrete, masonry, and excavation construction. Over the course of three decades, State Line Construction has developed into a leader in the construction of commercial, industrial and institutional buildings, and parking garages. Our projects include various medical facilities, office buildings, printing plants, parking garages, warehouses, supermarkets and retail stores with contracts ranging from under $10,000 to over $15 million.