What is the design exception process used for?
The design exception process is intended to ensure the sound engineering decisions are made when design options are limited.
Exceptions to design standards should be discussed early in the design process when project limits are first determined. All design exception requests must show justification.
Who determines when an exception is acceptable?
The Oregon Department of Transportation state highway engineer is responsible to set design standards and evaluate whether modifications are appropriate.
Design engineers cannot design outside the standard without approval.
Applying for a Design Exception
- Applying for an exception does not guarantee approval.
- Exceptions must be submitted at or before the Design Acceptance Package milestone.
Instructions to complete the form:
Design Exception Review Process
Once received, the request is reviewed by three representatives, prior to the state roadway engineer completing an evaluation. Those representatives include:
- Engineer of record;
- ODOT program manager, area manager, district manager, private public partnerships, or local government representative; and
- ODOT region technical center manager or region roadway manager.
If approved, the region manager will submit the request to the state roadway engineer who will provide the official approval.
Additional information about this process is included in chapter 14 of the Highway Design Manual.