MANHOLE REHABILITATION

Addressing the issues in manhole rehabilitation requires a well-structured approach that combines assessment, planning, and execution. Here are the steps in which we use to decide our approach.

Comprehensive Assessment: The first step is to thoroughly assess the condition of the manholes that need rehabilitation. This includes identifying structural damage, corrosion, infiltration, etc. We do an internal inspection to pinpoint problem areas.

1. Prioritize: After the assessment, we prioritize the manholes that need urgent attention. Factors like the extent of damage, risk of failure, impact on the overall system, and cost implications are considered when prioritizing.

2. Choosing the Right Method: Depending on the issues identified, choose the most suitable method for each manhole. For Storm system repairs, cementitious lining may be sufficient. For sanitary systems severe corrosion, epoxy coating is generally needed to extend the years on a manhole’s life. If there’s heavy infiltration, sealing techniques would be used to ensure there are no issues with the adhesion of the liners.

3. Training: APS team members are well-trained in the various rehabilitation techniques. This includes understanding the materials used, the application process, safety measures, and post-rehabilitation inspection.

4. Implementation: APS executes the rehabilitation process systematically. Consider temporary traffic control (if the manhole is in a busy area), dispose of any waste materials properly, and ensure minimal disruption to the surrounding environment and the public.

5. Quality Control: After the rehabilitation process, it’s important to conduct quality checks. This helps confirm that the rehabilitation has been done correctly and the manhole is now in a good condition. APS utilizes wet film thickness gauges to ensure the coatings are applied to the correct thickness. We also use an organized approach that allows APS to communicate progress updates throughout the duration of the project.