Learn more about sewer rehabilitation and find out if it’s the pipeline solution you’ve been looking for.
What exactly is sewer rehabilitation? Rehabilitation of sewer infrastructure includes different methods that will provide remediation in areas where exposed sewer components and streams intersect. This is in addition to restoring the already impacted streams.
Sanitary sewer systems are made up of sewer pipes and other appurtenances like manholes, pumping stations and inlet and outlet structures. The pipes are composed to different materials such as concrete, reinforced concrete, clay, ductile iron, cast iron, polyethylene and polyvinyl chloride (PVC). On the other hand, most manholes are made of clay, reinforced concrete or bricks.
Because most sanitary sewer systems are very old – some were built in the 1800s and 1900s – some of its components now have defects. This is a result of various physical, chemical and biological factors. Examples of sewer defects are collapsed and cracked pipes, offset joints and cracked manholes.
Surface runoff and groundwater enter the system during wet weather, while rainwater enters the system from illicit connections from the buildings. The combination of these result to manholes overflowing when their capacities are exceeded. When the total flow exceeds the wastewater treatment plants’ capacities, untreated wastewater is passed to receiving water. This can be dangerous to human health and the environment.
Sewer rehabilitation will solve and help prevent this.
There are different ways to do sewer rehabilitation. In cases where pipes are in very poor condition, there may be a need to excavate them and replace them with new ones. Otherwise, sewer rehabilitation can be completed using a trenchless technology.
Trenchless technology is a subsurface construction process that is done with minimal to zero continuous trenches. The methods, materials and equipment are used to install, replace or rehabilitate underground infrastructure with very minimal disruption to traffic, business and activities on the surface.
Trenchless rehabilitation includes the following construction methods:
- thermoformed pipe
- pipe bursting
- cured-in-place pipe (CIPP)
- grout-in-place pipe
- mechanical spot repair
These methods provide repair, rehabilitation, or replacement of existing underground pipes and structures using little to no excavation.
Call Reline Drainage today and we’d be happy to help you and answer any questions you have about sewer rehabilitation.