Professional Development Series

Below is an archive of the CE News Professional Development Series from These Contech articles no longer meet the AIA CES requirements but continue to provide educational material of interest.

Note: It is the responsibility of the licensee to determine if this method of continuing education meets his or her governing board(s) of registration’s requirements.

For additional PDH opportunities, consult with your local Contech representative or click here to learn more about Contech’s Lunch and Learn Presentations.

Archived PDH Articles*

* Check with your local governing board to see if reading these articles meets your state's PDH requirements


The Practical Differences in Material Properties of Flexible Pipe Products
December 2010: By Darrell Sanders P.E. and Andrew Jenkins E.I.

The Use of Corrugated Metal Pipe and Structural Plate for Aggregate Tunnel and Conveyor Enclosure Applications
December 2009: By Jim Noll P.E., Steve Tysl P.E. and Matt Westrich P.E.

Pipe Joints and Critical Performance Requirements
September 2009: By Darrell Sanders P.E.

Performance Characteristics of Profile Wall HDPE Drainage Pipes
June 2008: By Darrell Sanders P.E.

Bridges and Structures

LRFD Implementation of Shallow Spread Footings for Bridge Structures
September 2012: By Jim Riseborough P.E. and Steve Tysl P.E

Specifying a Vehicular Prefabricated Steel Truss Bridge
August 2012: By Dennis L. Gonano P.E. and James G. Bauer

Practical Factors Related to the Inspection Evaluation and Load Rating of Installed Culverts
October 2012: By James R. Noll P.E. Mitchell T. Hardert P.E. and Joseph A. Dennis, Jr.

Practical Considerations Related to the Use of Alternative Backfill Materials for Flexible Soil-interaction Structure Installation
July 2011: By Steve Tysl P.E. and Jim Noll P.E.

Design Considerations for Pedestrian Truss Bridge Structures
October 2011: By James G. Bauer, Steven Herth P.E. and Adam Homelvig P.E.

Siting Considerations for Open-Bottom Buried Precast Concrete Bridge Structures
November 2010: By Julia Frazier P.E.

Practical Factors and Considerations Related to Culvert Inspection
July 2010: By Jim Noll P.E. and Bob Frascella P.E.

Rehabilitation and Relining of Culverts
September 2008: By Jim Noll P.E. and Matt Westrich P.E.

Culvert Hydraulics: Basic Principals
December 2007: By Philip A. Creamer P.E.

Flexible Pipes for Culvert and Drainage Applications: Understanding Design and Performance Differences
July 2007: By Jim Noll P.E.

Erosion Control

Low-Water Crossing Design & Use of Articulated Concrete Block
November 2012: By Barrie King P.E.

Geosynthetics in Articulating Concrete Block Section Design
August 2011: By Matthew Stovall P.E. and Barrie King E.I.T.

Articulated Concrete Block Design
August 2010: By Bryan N. Scholl, Christopher I. Thornton Ph.D. P.E. and Barrie King E.I.T.

Overtopping Flow Protection
August 2009: By Bryan N. Scholl, Christopher I. Thornton Ph.D. P.E. and Barrie King E.I.T.

Scour in Bottomless Culverts
December 2008: By Bryan N. Scholl and Christopher I. Thornton Ph.D. P.E.

Revetment Design Considerations in Sheltered Water Wave Conditions
October 2007: By Christopher I. Thornton Ph.D. P.E. and Richard Kane


Modeling Stormwater Runoff Reduction from Rainwater Harvesting
July 2012: By Greg Kowalsky BSME and Kathryn Thomason P.E.

Cistern Design Considerations for Large Rainwater Harvesting Systems
September 2011: By Greg Kowalsky and Kathryn Thomason P.E.

Rainwater Harvesting and Re-Use:A Tool for Stormwater Runoff Reduction
September 2010: By Greg Kowalsky and Kathryn Thomason P.E.

Economic Optimization of Sustainable Subsurface Infiltration Systems
November 2009: By William G. Young P.E., Derek Berg and Heather McCall E.I.

Designing For LID: An In-depth Look at Integrated Management Practices and Design Considerations
July 2009: By Jennifer Steffens E.I. LEED-AP and Denise Pinto P.E.

Stormwater Treatment and Onsite Infiltration- LID at the Core
August 2008: By Douglas E. Krause P.E. and Vaikko P. Allen II CPSWQ

Evaluation of Stormwater Filtration Systems
May 2007: By James Lenhart P.E.

Designing Surface Water Runoff Controls for Paved Surfaces
December 2006: By Vanessa Hatcher P.E. and Jim Noll P.E.