A sewer line collapse occurs when the pipe breaks or caves in, preventing wastewater from flowing properly. This problem can disrupt daily life, lead to expensive repairs, and cause significant property damage. Understanding these three reasons why a sewer line might collapse can help property owners take preventative measures before disaster strikes.
Tree Root Infiltration
Tree roots are naturally drawn to the moisture in sewer lines, and a tree’s roots typically grow at least twice as long as the branches. Over time, these roots can grow into the pipes and expand inside of them, causing blockages that increase pressure on the pipe walls.
Methods to prevent root infiltration into pipes include using root barriers, performing regular pipe inspections, and applying chemical root inhibitors. A professional plumber can use a sewer camera to visually examine the inside of the pipes for any signs of roots or damage. They can also remove roots they find and either repair or replace the affected pipe.
Material Degradation
Older sewer lines are particularly vulnerable to degradation over time. Corrosion and erosion weaken the walls of these pipes, making them less able to withstand the weight and pressure of the soil above. Weakening pipe material can cause the sewer line to collapse.
Whatever the age of the pipe, replacing the degraded material will ensure long-term reliability and prevent future issues. Licensed plumbing professionals will follow regulatory guidelines to ensure the installation is safe and up to code. For instance, Harris Water Main and Sewer excavates old sewer lines and installs superior replacements following NYC DEP standard sewer and water main specifications.
Ground Shifting or Settling
Earthquakes, heavy construction, tree root movement, and even normal fluctuations in soil moisture levels can cause the ground to shift or settle. This movement can lead to misalignment, cracks, or breaks in the sewer line. Shifting can also cause soil voids—spaces in between soil particles—to form. If voids develop in the soil supporting the pipe, they can cause the pipe to break under the weight of the soil above it.
Property owners can use proper drainage systems to effectively manage water flow and prevent erosion, which helps maintain the stability of the soil. Additionally, soil compaction techniques can correct voids.
Maintaining awareness of any construction activities or natural events in your area is crucial. If you suspect ground shifting or settling has affected your sewer line, a professional inspection can identify any immediate risks. Reinforcement or realignment of the affected sections may be necessary to prevent collapse.
Encroaching tree roots, deteriorating pipe materials, and shifting ground can damage to sewer lines and make them non-functional. Controlling tree root growth, having the pipes professionally inspected, replacing old systems, and stabilizing the soil can significantly lower the risk of collapse. Take these steps to avoid the extensive downtime and high repair costs associated with emergency sewer repair.
