Client: ComEd

This undertaking includes the mapping, locating surveying and updating of internal systems for ComEd’s entire underground mainline cable system in conduit. The level of effort involved in this process includes the following:

  • Estimated 12,000 maps to be created based on initial research performed during RFP cost estimate development
  • Estimated 8750 manholes to be adjusted / created within the CE*GIS System
  • Estimated 4000 feeders to be modified / adjusted in the underground sections of the GIS based map of ComEd’s suburban regions
  • Estimated 1000 miles of conduit to be field located, collected and adjusted / created and applied within the GIS based map of ComEd’s underground suburban regions.
  • Estimated 431 Substations to be visted to verify feeder sources
  • 21 Regions/Barns and multiple other data sources for historical document research
  • Estimated 11,174 square miles of system territory to cover

Aerial depiction of before (in light blue) and after (in red) mapping of underground ductbank system

Underground Suburban Mapping Revitalization Program

The benefits to be realized from the performance of the project are as follows:

  • Faster trouble shooting during outages.
  • Improved data for assessment management.
  • Allows for improved effectiveness of “NO DIG / ONE CALL” utility coordination.
  • Improved dig-in prevention and underground facility protection.
  • Identification of cables present for crews entering manholes.
  • Improved visualization for system modification during design.
  • Improved design process for system upgrades and expansion.
  • Electric system model with physical location of underground infrastructure.