Back to top

Plan Reviews

When is a Plan Review required?

Denver Water requires that all projects involving installation of a 3-inch and larger connection must be reviewed and approved prior to construction.

If a project contains any one of the following, a Plan Review is required:

  • Main extensions for new development.
  • Fire hydrants.
  • Fire sprinklers and domestic connections 3-inch and larger.
  • Water line relocations or modifications.

All existing and new 2-inch and smaller taps are required to be included in the overall plan. However, if the project consists of only 2-inch and smaller taps, a Plan Review is not required.

Plans shall be prepared, stamped, and signed by a PE licensed by the State of Colorado. CAD files must meet the requirements and specifications detailed in Denver Water’s CAD Standards. Any deviation from these standards will result in plan rejection.

Help Guide: When is a formal Plan Review required?

Tap Size Add On Add On Review Method
3/4″     Tap Sales reviews site plan layout — can provide PDF for inspection if needed
3/4″ 2″ and smaller fire line   Tap Sales reviews site plan layout — can provide PDF for inspection if needed
3/4″   fire hydrant Formal Plan Review required (typical)
3/4″ 3″ and larger fire line   Formal Plan Review required (typical)
1″     Tap Sales reviews site plan layout — can provide PDF for inspection if needed
1″ 2″ and smaller fire line   Tap Sales reviews site plan layout — can provide PDF for inspection if needed
1″   fire hydrant Plan Review
1″ 3″ and larger fire line   Plan Review
1 1/2″     Tap Sales reviews site plan layout — can provide PDF for inspection if needed
1 1/2″ 2″ and smaller fire line   Tap Sales reviews site plan layout — can provide PDF for inspection if needed
1 1/2″   fire hydrant Plan Review
1 1/2″ 3″ and larger fire line   Plan Review
1 1/2″ 3″ and larger fire line fire hydrant Plan Review
2″     Tap Sales reviews site plan layout — can provide PDF for inspection if needed
2″ 2″ and smaller fire line   Tap Sales reviews site plan layout — can provide PDF for inspection if needed
2″   fire hydrant Plan Review
2″ 3″ and larger fire line   Plan Review
2″ 3″ and larger fire line fire hydrant Plan Review
3″ All     Plan Review


Denver Water’s approval of plans and specifications expires after one year of inactivity

Denver Water is now requiring all users of the Plan Review Checklist to register with Denver Water Online to see their outstanding items. You must register with the email address that is registered with the project.

Denver Water Online