Perform an engineering assessment and condition inspection of approx. 4 miles of raw water transmission pipeline. The Pipeline consists of 24" and 30" prestressed concrete cylinder pipe. The inspection technology shall be capable of assessing prestressing wire condition, identifying potential structural deficiencies, and navigating the existing 24" butterfly valves. Work shall include an engineering evaluation of pipeline structural condition and remaining useful life, identification and location of potential deficiencies, and a comprehensive engineering report with findings and recommendations for maintenance, repair, rehabilitation, or replacement, as appropriate.