The Centralized Renewable Energy System Project (CRES), designed by Olsson Associates, captures effluent from the City of Lincoln's Theresa Street Wastewater Treatment Facility normally discharged into Salt Creek. Through a series of pumps, pipes, and valves, the system will heat and cool buildings on Nebraska Innovation Campus. The innovative CRES Project is one of the largest heating and cooling systems of its kind in the United States. General Excavating, working as a subcontractor to the Kiewit Building Group, proposed several cost savings ideas on the CRES Project which saved over one million dollars on the cost of construction. General Excavating installed over 10,000 feet of 30-inch ductile iron pipe and appurtenant work on this unique project.