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Guide for In-Place Treatment of Wood in Historic Covered and Modern Bridges

COURSE PROVIDER: Gilbert Gedeon, P.E.
Guide for In-Place Treatment of Wood in Historic Covered and Modern Bridges
Course Highlights

This online engineering PDH interactive presentation provides a brief outline on the causes of biodeterioration to bridges and the procedures for preventing or mitigating their effects.

Wooden bridges, whether historic covered bridges or current highway timber bridges, can be vulnerable to damage from biodegradation. Biodeterioration is minimized through design and construction practices, and in the case of modern timber bridges, through pressure treatment of the timbers with wood preservatives. However, the potential for degradation remains, and over time many bridges need maintenance that may include in-place treatment with preservatives.

This presentation describes procedures for selecting and applying in-place treatments to bridges to prevent or arrest degradation. It also focuses on preservative treatments to protect wooden bridges against biodeterioration and discusses approaches for minimizing damage caused by fire.

This 3 PDH online interactive presentation is applicable to architects, engineers, and other environmental design specialists, who are interested in gaining a better understanding of the causes of biodeterioration of wood.

Learning Objectives

This continuing education interactive presentation is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with the causes and problem areas for biodegradation in wooden bridges, the effects of climate and the role of wood structure
  • Learning about the different types of supplemental treatments including water-diffusible preservatives, non-diffusible liquid treatments and fumigants
  • Gaining a general overview on the application and use of supplemental preservative treatments for covered bridges
  • Understanding the use of supplemental fire-retardant treatments for covered bridges
  • Exploring supplemental treatment concepts such as liquid surface treatments, paste surface treatments, and internal treatments
Course Document
For this course, you will need to go through the interactive presentation "Guide for In-Place Treatment of Wood in Historic Covered and Modern Bridges". To access the presentation, you will need to log in or register and purchase the course. Following the course purchase, please click on the link provided in your account to view the presentation. The duration of this presentation is approximately 151 minutes.
This particular course document is accessible only after purchase.

Course Quiz
Once you finish watching the PDH interactive presentation, you will be redirected to your account to take a multiple-choice quiz consisting of fifteen (15) questions to earn 3 PDH credits. The quiz will be based on this interactive presentation.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and access the video presentation, please click on: