Manhole Inspections in Midlothian, IL

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Overview

The project goal is to reduce inflow and infiltration (I/I) of storm water into the sanitary sewer system as part of the Village's compliance with the Long-Term Program Operation and Maintenance Plan (LTOMP) portion of the Infiltration and Inflow Control Program (IICP) to comply with the Metropolitan Water Reclamation District of Greater Chicago (MWRD).  

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Scope​

• Include manhole inspections (Level 1) of the entire system 

• Excludes the manholes inspected in 2018

• Total of 758 manholes

• manhole GPS updates

• Pipe diameter updates

• Updates to the Village's overall sanitary sewer atlas

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Results

• Find manhole locations and updates to sanitary sewer atlas

• Inform Village of needed maintenance

• Prevent sanitary sewer overflows (SSOs) and basement backups (BBs)

• View defects in real time through arcGIS online dashboard viewer

• View photos taken on dashboard

• Identify excess infiltration and inflow into sanitary manhole structures

• Report deteriorating manhole structures

• Provide recommendations to repair structures 

• Cost analysis and breakdown of repairs needed