37-24-021 - RVSDS SRF Project Plan: Phase 2A/3A Project - Sewer Televising

Description: The County of Wayne is requesting bids for the Rouge Valley Sewage Disposal System (RVSDS) Phase 2A/3A sewer televising project which will provide sewer inspections on portions of the system. Using the knowledge learned from the 1A sewer televising efforts, in conjunction with historical data from the County and the sewer system flow modeling, project areas will be identified, and prioritized.  The inspection work includes structural evaluation of the sewer system utilizing the Pipeline Assessment Certification Program (PACP), the industry standard for pipeline defect identification. The contract will be broken into three phases. Phase 1 will include a wide range of sewer sizes and locations to identify areas that are exhibiting a worse condition than others in the system. Phase 2 will identify which areas of the system are in the worst condition and inspections will be assigned to sewers that have not been inspected. Phase 3 will continue to inspect areas of concern, as well as areas that were inspected during the 1A televising contract that exhibited sewer wall surface damage. Sewer inspections will be performed on pipes ranging from 4 to 120 inches in diameter. The construction contract for this project will also include alternate bid items to provide the County with the option to utilize Multi-Sensor inspections performed on siphons and constantly surcharged sewers. The Multi-Sensor inspection provides additional and potentially useful information on sewer segments where traditional CCTV methods are unviable due to submergence.