Use of Sustainable Materials for Erosion and Sediment Control Practices (2025)
Chapter: Appendix C: Case Example Interview Questionnaire
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Appendix B: Survey Responses
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Suggested Citation:
"Appendix C: Case Example Interview Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2025. Use of Sustainable Materials for Erosion and Sediment Control Practices. Washington, DC: The National Academies Press.
doi: 10.17226/29034.
APPENDIX C
Case Example Interview Questionnaire
NCHRP Synthesis 55-16
Use of Sustainable Materials for ESC Practices
Follow-up Case Example Interview Questions
This interview is to help develop a clear understanding on how your state DOT is transitioning to sustainable ESC materials.
Several of the questions within the survey allowed the respondent to answer “Other”. This follow-up interview allows for additional discussion regarding those questions.
Drivers, Motivation, & Goals:
- Roughly how long ago did your DOT begin to move away from plastic-based ESC products?
- What have been the major drivers for reducing/eliminating ESC products containing plastics?
- Does your DOT have a target date to be plastic free?
Installation, Operation, & Maintenance:
- From field observations, what plastic-based ESC products (top 2 or 3) appear to have the most negative impact on the environment and/or wildlife?
- For these plastic-based products, what alternatives has your DOT implemented?
- Have the alternative ESC products performed adequately?
- Have the alternative ESC products required additional installation oversight and/or maintenance?
Challenges:
- Has it been a challenge identifying plastic-free ESC products?
- Has it been a challenge sourcing plastic-free ESC products?
Forward Development:
- What advice might you offer other state DOT agencies looking to move away from plastic-based ESC products?
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