Project Description

Project No.: Enter project number

Route: Enter route number

Control Section: Enter control section

Parish: Enter Parish

Project Name: Enter project name

Description of Work: Enter project location and description. Use shift+enter to start a new paragraph.

General Information

Route and Design Classification:

Freeway	Urban

Arterial/Collector	Rural

Local

Ramp

Traffic:

Posted Speed: Speed mph

Design Speed: Speed mph

Current ADT: Enter ADT.

Design ADT: Enter ADT.

D: D %

K: K %

T: T %

T DDHV: TDDHV veh/hr

Work Classification

Work Type

New/Reconstruction

Major Rehabilitation

Structural Improvement

Spot Replacement

Minor Rehabilitation

Preventative Maintenance

System

NHS

Non-NHS

FHWA Involvement

PoDI

Assumed

None

Applicable Design Guideline:	Choose an item.

Provide supporting documentation/exhibits for the request. (Exhibits may include typical sections, geometric details, correspondence from other sections, agencies, etc.)

Design Exception for the following criteria. Mark all requested.

Minimum Design Guideline Criteria

Design Speed*	Superelevation*

Lane Width*	Cross Slope*

Shoulder Width*	Grade*

Shoulder Type	Slopes

Bridge Width	Median Width

Structural Capacity*	Stopping Sight Distance*

Vertical Clearance*	Complete Streets

Lateral Offset to Obstruction	Horizontal Curve Radius*°

Clear Zone

* Controlling criteria for NHS Routes (https://www.fhwa.dot.gov/design/standards/160505.cfm)

° For PoDI only

Provide a synopsis of the scope of the project, the situation you are encountering and the problem you are attempting to mitigate.

Provide description.

Describe the proposed design exception. Provide the proposed and standard values of the design exception criteria.

Provide description.

Discuss the project’s proposed roadway characteristics in comparison to the existing and the adjacent roadway sections.

Provide description.

Discuss alternatives to the exception that were considered.

Provide description.

Provide a safety review of the project comparing the existing conditions to the conditions proposed in this design exception. All design exceptions must have a safety review and crash review.

Provide description.

Discuss the cost of the project and the cost differential between proposed design and a design that would meet guidelines.

Provide description.

Discuss impacts, other than costs, of bringing the features up to guidelines (such as operational performance, impacts to other design features, right-of-way, community, environmental, historical features, usability by all modes of transportation, construction issues, etc.)

Provide description.

Discuss proposed mitigation to address design exception feature. Some possible countermeasures may include advisory signs, lighting, guardrail, signing, rumble strips, future work to address design exception, incremental improvement, etc.

See link: FHWA - Mitigation Strategies for Design Exceptions

Provide description.

Project No.: Enter project number

Design exception for: Choose an item.	Choose an item.

Choose an item.	Choose an item.

Choose an item.	Choose an item.

Required Signatures

Prepared by: Please Print	Title:
Signature:	Date:

For District or Permit Projects:

Recommended by: ADA of Engineering Please Print
Signature:	Date:

For LPA Projects:

Recommended by: Responsible Charge Please Print	Title:
Signature:	Date:

For All Projects:

Recommended by: DOTD Project Manager Please Print
Signature:	Date:

Recommended by: Road Design Engineer Administrator (for roadway criteria) Simone Ardoin, P. E.	Recommended by: Bridge Design Engineer Administrator (for bridge criteria) Paul Fossier, P. E.
Signature:	Date:	Signature:	Date:
Approved by Chief Engineer: Janice P. Williams, P. E.	Approved by: FHWA; Title Only required at FHWA request – See Stewardship Agreement
Signature:	Date:	Signature:	Date: