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Geometrics
Geometrics

The mission of the Geometrics section is to provide technical assistance on geometric design features (superelevation, horizontal and vertical alignment, intersection design, interchange design). We accomplish our mission by assisting the district personnel, other governmental agencies and consultants in applying the geometric criteria.

Geometric Review

This section performs geometric review of construction plans required by the Project Development Process (PDP) for conformance with the ODOT design standards of the Location and Design Manual, Volume 1. This section also provides geometric review quality assurance reviews for the Districts and provides geometric review training for the Districts.

GRAD Training

Geometric Review and Design (GRAD) Training

GRAD is a self-paced engineering resource providing a comprehensive overview of the design components within the Location & Design Manual Vol. 1.  Whether you are new to design or a seasoned user of the Location & Design Manual Vol. 1, these modules will provide viewers with an understanding of the key elements of roadway design.

Design Exceptions

A design exception is the formal documentation of the justification to deviate from the established design criteria. The controlling criteria which requires a design exception are lane width, shoulder width, bridge width, structural capacity, horizontal alignment, vertical alignment, grade, stopping sight distance, cross slope, superelevation, vertical clearance and horizontal clearance. Design exceptions should be submitted prior to the Stage 1 submission. The format for the design exception can be found in the L&D manual Volume 1 section 105.5.1. 

How to Submit Design Exceptions

To submit design exceptions, users must have access to ODOT's extranet websites. Extranet website credentials are provided through MyODOT. For instructions on creating a MyODOT account, click the button below. Return to this page after creating a MyODOT account.

Create a MyODOT Account

Next, click the Design Exception Extranet Site button. Click "User another account" when prompted, then use your MyODOT credentials to login. Note: Please type "odotonline/" before your MyODOT username. For example, odotonline/bsmith.

Design Exception Extranet Site

Already have MyODOT credentials and logged into the ODOT extranet? Use the following links to submit and review design exceptions.

Submit Design Exception

Review Design Exception

Approved Design Exceptions

 

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