Scaling loose rock from highway rock slopes is an important aspect of improving rock slope safety in mountainous areas, according to input from 42 state departments of transportation and two regional divisions of the Office of Federal Lands Highway.
The TRB National Cooperative Highway Research Program's NCHRP Synthesis 555: Estimating and Contracting Rock Slope Scaling Adjacent to Highways documents current rock slope scaling practices adjacent to highways.
An appendices document is also included as part of the publication.
Table of Contents
|Chapter 1 - Introduction||4-8|
|Chapter 2 - Literature Review||9-10|
|Chapter 3 - State of the Practice||11-25|
|Chapter 4 - Case Examples||26-34|
|Chapter 5 - Conclusions and Research Opportunities||35-37|
|Appendix A - Survey Questionnaire||40-57|
|Appendix B - Questionnaire Responses||58-77|
|Appendix C - Example Scaling Plan Sheets Submitted by DOTs||78-78|
|Appendix D - Example Scaling Specifications and Contractor Submittals Provided by DOTs||79-82|
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