Common Manhole Problems and How Trenchless Solutions Fix Them

Manholes are essential access points in sewer and stormwater systems, allowing maintenance crews to inspect and repair underground pipelines. Over time, however, manholes can develop problems due to age, weather, and environmental conditions. As the trusted team for trenchless pipe lining in Indianapolis, IN and other reliable services, SLB Pipe Solutions explores a few concerns that often affect manholes and the best trenchless solutions to fix them.

Structural Deterioration

Manholes are often made from brick, concrete, or precast materials, all of which can weaken over time due to age, soil movement, or water infiltration. Cracks, corrosion, and spalling are common signs of structural failure. If left untreated, this can lead to collapse or significant leaks. Trenchless methods such as manhole lining systems use spray-applied or cured-in-place coatings to restore structural integrity. Using the same concept as the usual trenchless sewer repair, the coatings bond to the interior surfaces and create a seamless, water-tight barrier.

Infiltration and Inflow

Water from rain or groundwater can seep into manholes through joints, cracks, or deteriorated walls. This adds extra volume to the sewer system, increasing treatment costs and the risk of overflows. Trenchless sealing techniques, like injecting chemical grouts, are designed to close off leaks and prevent water intrusion. Like trenchless pipe repair and replacement, the process is often completed in a matter of hours or a full day.

Corrosion from Sewer Gases

In sewer environments, gases like hydrogen sulfide can cause corrosion, especially in older concrete manholes. This compromises the structure and poses safety hazards. Trenchless rehabilitation often involves applying corrosion-resistant liners or epoxy coatings that protect the surface from further chemical damage. These solutions extend the lifespan of the manhole while keeping it structurally sound.

At SLB Pipe Solutions, we are committed to delivering top-quality services that prioritize safety, durability, and minimal disruption to our clients and communities. From trenchless sewer replacement and repair to manhole rehabilitation, we have the expertise and equipment to bring the results you need. Call us today to schedule an appointment.