What is a common method for assessing the condition of sewer pipes?

Closed-circuit television (CCTV) inspections are widely recognized as a standard and effective method for assessing the condition of sewer pipes. This method involves using a camera that is inserted into the sewer line, allowing for real-time visuals of the interior of the pipes. This technique enables inspectors to identify issues such as blockages, cracks, root intrusions, corrosion, and other structural problems without the need for excavation.

CCTV inspections are advantageous because they provide detailed and comprehensive insights into the condition of the infrastructure, which helps in planning maintenance, repairs, or replacements. This non-invasive method minimizes disruption to the surrounding area, making it efficient both in terms of time and cost, compared to other methods that may require significant labor or disruption. In addition, recording the footage allows for ongoing assessments over time, improving the overall management of the sewer system.

Other methods, while useful in specific contexts, do not provide the same level of detailed visualization and diagnosis that CCTV offers.