Construction Engineering and Inspection (CEI) services have historically been added to the construction phase of transportation projects. The County typically performs CEI services with either in-house forces or by outsourcing. CEI work involves providing oversight for the County, ensuring that the Contractor builds the project in reasonable conformity with the plans, specifications, and special provisions for the Construction Contract. The CEI firm is the liaison between the County and the Contractor to observe the Contractor's work to determine the progress and quality of the work. The CEI Consultant identifies discrepancies, reports significant discrepancies to the County, and directs the Contractor to correct such observed discrepancies. Historically, County departments have spent approximately 5% to 12% of the total construction contract for CEI services; however, this may not be indicative of future buying patterns.