Ontario Dam Inventory

The Ontario Dam Inventory (ODI) is an inventory of medium and large dams throughout Ontario. It uses a point-based system (x, y location) to identify each dam location. The ODI does not contain:

  • small dams
  • small water control structures
  • beaver dams
  • water crossings
  • road embankments
  • locks
  • falls
  • rapids
  • culverts

Each dam location has an identifier that can be used to link to other dam information databases.

For more information

Provincial Mapping Unit  |  pmu@ontario.ca


Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

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Supporting Files

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Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown None
Source URL/Address
Maintainer Provincial Mapping Unit
Author Email
Maintainer branch Mapping and Information Resources Branch
Last Validated Date 2020-10-16
Update frequency Never
Access instructions