Parking Lot Design Guide

Announcing WAPA’s all new Asphalt Parking Lot Design Guide for 2021.

This companion to WAPA’s Asphalt Pavement Design Guide focuses on all phases of asphalt parking lot design. The guide is organized into five chapters:

  • Assessment and Planning
  • Subgrade and Drainage
  • Construction
  • Maintenance
  • References

Also included is a comprehensive 61-point Inspection Checklist to help an on-site inspector identify key processes and follow best practices to produce a quality parking lot, and a two-page Guide for New Parking Lot Owners that explains what to expect from a new parking lot, best practices for optimum performance, and maintenance tips.

January 2021 Update: This publication updates the 20-Year Design ESALs from 2 million to 1 million (found in Tables 3.1 and 3.2).

The Asphalt Parking Lot Design Guide is part of WAPA’s commitment to supporting the growth and use of all types of asphalt pavement in Wisconsin. You can read more about the benefits of use of asphalt parking lots in our interactive brochure Asphalt Parking Lots: A Good Business Decision.

Please feel free to share this information with your colleagues and customers.

If you have any questions, or if you wish to receive a printed copy of the 2021 Asphalt Parking Lot Design Guide, please email WAPA at