Events Calendar

Permeable Interlocking Concrete Pavements Seminar - New Orleans, LA - POSTPONED

Event Date

May 5, 2020 10:00 am to 2:00 pm CDT
May 5, 2020 - 9:00am
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City of New Orleans Department of Public Works
Permeable Interlocking Concrete Pavements Seminar

Date: May 5, 2020 - This event has been postponed and will be rescheduled for a later date
Time: 10:00 am to 2:00 pm CST
Location: Regional Planning Commission, 10 Veterans Blvd
Host: Interlocking Concrete Pavement Institute
Speakers: David R. Smith, ICPI Technical Director and Bryan Horr, P.E., ICPI Manager of Technical Development





This seminar is sponsored by ICPI, Oldcastle and Keystone Hardscapes. Instructional materials and lunch are included. Participants are encouraged to bring their experiences with permeable pavements or email with pictures to

This seminar is open to City of New Orleans employees and to other interested persons by invitation only.


Registration for the PICP Seminar in New Orleans, LA will be open soon.

This seminar is open to City of New Orleans employees and to other interested persons by invitation only.

To register for the PICP Seminar, use your ICPI login credentials or create a new account.


Date, Time and Location

Date: May 5, 2020
Time: 10:00am - 2:00pm CST
Location: Regional Planning Commission, 10 Veterans Blvd, New Orleans, LA 70124

Seminar Schedule

Seminar Schedule

10:00am – 10:30am: Permeable Pavements in New Orleans – DPW Staff

10:30am – 11:00am: Site suitability & design considerations

11:00am – 12:00pm: Hydrologic & structural design methods

12:00pm:  Working Lunch – presentations continue

12:45pm – 1:30pm: Urban construction considerations

1:30pm – 2:00pm: Maintenance & asset management


Permeable interlocking concrete pavements (at left) are seeing increased use in parking lots and low volume streets to manage stormwater by reducing flooding risks and polluants. The pavement system relies on high strength impermeable concrete paving units with permeable aggregates in the joints. These rest on consecutively larger open-graded aggregate layers: bedding, base and subbase reservoir. With about 40% porosity, the subbase layer provides detention, filtering and infiltration as the soils allow.

The City of New Orleans encourages the use of permeable pavements in private development projects to meet stormwater regulations as well as comply with a recent ordinance requring their use in new parking lots. For public projects, peremable pavements offer storwater detention in streets to help reduce flooding risks.

Last year, the American Society of Civil Engineers (ASCE) introduced a national standard, 68-18 Permeable Interlocking Concrete Pavements. This standard was developed for use and adoption by municipal and state stormwater agencies. This seminar provides an overview of this 80-page standard with emphasis on structural and hydrologic design, as well as on construction and maintenance. The seminar provides design, constructionand maintenance resources to help reduce stormwater runoff, pollutants and support flood reduction in a range of applications including parking lots, alleys and streets.



David R. Smith is Vice-chair of the ASCE Technical Committee on Permeable Interlocking Concrete Pavement that created the ASCE 68-18 design standard. He has written or contributed to state and municipal guidelines for permeable pavements. He is active in ASCE’s Environment and Water Resources Institute having co-edited the ASCE book, Permeable Pavements released in 2015. ICPI released a 5th edition of his 130-page book in 2017 entitled Permeable Interlocking Concrete Pavements – Design, Specifications, Construction, Maintenance. Seminar participants will receive a free copy of this book.

David wrote permeable pavement guides for the California Stormwater Water Quality Association, California Department of Transportation, San Francisco Bay area counties (Alameda, San Mateo, Santa Clara), plus initial drafts for the Minnesota Pollution Control Agency, Wisconsin Department of Natural Resources, and the North Carolina Department of Natural Resources. He has reviewed and contributed to permeable pavement guidelines and BMP manuals for state stormwater agencies in Virginia, West Virginia, Maryland, Pennsylvania, New Jersey, Washington DC, Washington (state), and the Denver Urban Drainage and Flood Control District.

He also co-authored Permeable Pavement Road Map which presents possible futures and issues to address in order for permeable pavements to be institutionalized for everyday use by transportation, stormwater, and flood control agencies. In addition, David also wrote an FHWA Tech Brief on permeable interlocking concrete pavements in 2019.

Bryan Horr is a highly motivated Civil Engineer with eleven years of construction project experience, now focused on enhancing best practices for installing interlocking concrete pavements. He has construction  supervisory experience managing project employees, including subcontractor staff with demonstrated success managing high-profile projects on time and within budget. In 2019, he earned his Professional Engineer status with the motivation to learn more especially about permeable interlocking concrete pavements.