Engineering & Archives

The Engineering Division within the Department of Public Works has a number of different responsibilities with a primary mission of monitoring, evaluating, designing and constructing the city’s infrastructure.



  •  Mill: Grinding a section of the existing pavement to a particular level and placing a new layer of pavement on top
  • Overlay: Placing a new layer of pavement over what already exists; no grinding of existing pavement
  • Patch: Making spot repairs on the existing pavement
  • Reclaim: Grinding up existing pavement and gravel which becomes the road base. Two layers of pavement are then placed on top.
  • Resurface: Grinding off surface of existing pavement (two inches) and then pave over that
  • Reconstruction: Total rebuilding of street


The City engineering archives are an excellent resource for anyone trying to find out more about the history of the City’s streets and infrastructure. The archives contain over 30,000 engineering plans, as well as other technical records, such as survey field books, written street and sewer records, and city property deeds. For more information, please call the Engineering Office at 207-874-8682.