Manhole & Concrete Structure Rehabilitation
Services
Sewer manholes are under constant attack from microbiologically induced corrosion (MIC), Hydrogen Sulfide (H2S) gas, traffic loading, and groundwater infiltration. Many times the manholes are located in the middle of busy streets, making them impossible to replace without costly pavement repairs and traffic disruption. Johnson Service specializes in carrying out manhole rehabilitation in place, without disrupting sewer service in the majority of cases, thanks to the use of OBIC products and Strong-seal Systems.
- Restore existing manholes without excavation or interruption of service
- Grout and OBIC (Corrosion Resistant Liner) are applied using specialized application equipment
- High strength, fiber reinforced grout restores structural integrity
- Stops infiltration and exfiltration
- OBIC corrosion resistant coating protects against microbiological corrosion and severe H2S gas