PROCEEDINGS 1st Geotechnical Asset Management Peer Exchange (GAMPE) San Juan, Puerto Rico Submitted by Benjamín Colucci, PhD, PE, JD [email protected] Director, Puerto Rico LTAP Center Civil Engineering & Surveying Department University of Puerto Rico at Mayagüez Mayagüez, Puerto Rico 00680 Submitted to Michael Avery, Associate Division Administrator Federal Highway Administration Puerto Rico Division Dr. Ricardo Romero, Chief Soils Engineering Office (SEO) PR Highway and Transportation Authority January 30, 2020 TABLE OF CONTENTS LIST OF FIGURES ............................................................................................................. iii LIST OF APPENDICES ....................................................................................................... v LIST OF ACRONYMS .......................................................................................................... 1 PREFACE ............................................................................................................................ 5 SPECIAL RECOGNITIONS ................................................................................................. 6 DAY 1 – TUESDAY, AUGUST 27, 2019 ................................................................................ 7 GEOTECHNICAL ASSET MANAGEMENT PEER EXCHANGE WELCOME ........................8 GEOTECHNICAL ASSET MANAGEMENT PEER EXCHANGE AGENCY PRESENTATIONS, MORNING SESSION ..................................................................................9 Welcome from the Puerto Rico Highway and Transportation Authority ......................................9 Welcome from the FHWA Puerto Rico and US Virgin Islands Division ..................................... 10 FHWA Resource Center’s Introduction to Geotechnical Asset Management ............................. 11 PRHTA Organization & Infrastructure Overview...................................................................... 13 PRHTA Geotechnical Asset Management Program .................................................................... 15 Colorado Department of Transportation Geohazards Management ........................................... 22 GEOTECHNICAL ASSET MANAGEMENT PEER EXCHANGE AGENCY PRESENTATIONS, AFTERNOON SESSION ........................................................................... 28 Washington State DOT Geology, Organizational Structure and GAM Efforts ........................... 28 New Hampshire Department of Transportation Organization, Infrastructure Overview and Geohazards Management ........................................................................................................... 35 Federal Lands Highway Unstable Slope Management Program and Tools ................................. 40 DAY 2 – WEDNESDAY, AUGUST 28, 2019 ........................................................................ 50 Site #1: PR-10, km 57.2, Arecibo ................................................................................................. 51 DAY 3 – THURSDAY, AUGUST 29, 2019 ........................................................................... 54 RE-SCHEDULED FIELD TRIP TO SITES #4 AND #5 ............................................................. 55 Site #4: PR-52, km 68.3, Salinas .................................................................................................. 55 Site #5: PR-52, km 52.3, Salinas .................................................................................................. 57 PEER EXCHANGE DISCUSSION SESSION ............................................................................ 60 Main Points Presented in the Discussion Session ......................................................................... 60 Demonstration of GAM Software and Technological Tools ........................................................ 65 APPENDIX A: GAMPE AGENDA ..................................................................................... 71 i APPENDIX B: GAMPE PARTICIPANTS PACKAGE ........................................................ 72 APPENDIX C: GAMPE FIELD TRIP GUIDE ................................................................... 73 APPENDIX D: PROFILES OF PARTICIPANT AGENCIES .............................................. 74 APPENDIX E: PEER EXCHANGE PRESENTATIONS ..................................................... 75 APPENDIX F: GAMPE PARTICIPANTS .......................................................................... 76 APPENDIX G: REFERENCES .......................................................................................... 77 REFERENCES ................................................................................................................... 78 ii LIST OF FIGURES Figure 1: Dr. Ricardo Romero, PRHTA SEO Chief. ...................................................................... 8 Figure 2: Eng. Jaime Lafuente, Director of the PRHTA Design Area representing the PRHTA Executive Director, welcoming the GAMPE participants to the first day of the peer exchange. .. 9 Figure 3: Eng. Migdalia Carrión, representing Michael Avery, the Associate Division Administrator of FHWA PR-USVI. ............................................................................................. 11 Figure 4: Eng. Daniel Alzamora, Senior Geotechnical Engineer from the FHWA Resource Center. ........................................................................................................................................... 11 Figure 5: Special Assistant to the Secretary of the DTPW, Eng. Miguel Pellot, presents an overview of PRHTA’s history, organization and infrastructure overview. .................................. 13 Figure 6: PRHTA Geologist Darysabel Pérez giving the PRHTA GAMP presentation. ............. 15 Figure 7: Taxonomy of geotechnical assets adopted by the PRHTA SEO. Source: PRHTA SEO. ....................................................................................................................................................... 17 Figure 8: PRHTA SEO GIS-based Geotechnical Reports Inventory dashboard. Source: PRHTA SEO. .............................................................................................................................................. 19 Figure 9: Map showing the location of approximately 71,000 landslides resulting from Hurricanes Irma and Maria in Puerto Rico. Source. SLIDES-PR https://sites.google.com/a/upr.edu/geology/research/slides-pr. .................................................... 20 Figure 10: CDOT Geohazards Program Manager Ty Ortiz explains the geologic context of the State of Colorado. ......................................................................................................................... 22 Figure 11: Physiographic provinces of the State of Colorado. Source: EB, Inc, CDOT. ............. 23 Figure 12: CDOT makes use of Unmanned Aerial Systems (UAS) as a way to collect terrain data for its Geohazards program. Source: CDOT................................................................................. 25 Figure 13: Change detection analysis using ground-based photogrammetry at US-190 at La Veta Pass. Source: CDOT. .................................................................................................................... 26 Figure 14: CDOT Resilience Components and Measures for geotechnical asset management. Source: CDOT. ............................................................................................................................. 27 Figure 15: WSDOT Engineering Geologist Marc Fish explains the agency's unstable slope management program.................................................................................................................... 29 Figure 16: Mitigation status and condition of WSDOT geotechnical assets. Source: WSDOT. .. 31 Figure 17: Number and age of WSDOT unstable slopes (top) and constructed geotechnical assets (bottom). Source: WSDOT. .......................................................................................................... 32 Figure 18: NHDOT Engineering Geologist Krystle Pelham explains how the organization of her agency represents a challenge for the successful implementation of geotechnical asset management. ................................................................................................................................. 35 Figure 19: Change detection mapping using photogrammetry-based rock slope model. Source: NHDOT......................................................................................................................................... 39 Figure 20: FHWA WFL Engineering Geologist Douglas A. Anderson explains the organization of his agency, its Unstable Slope Management Program and associated software tools. ............. 41 iii Figure 21: Federal Lands Highway Unstable Slope Management Program GIS interface. Source: FHWA Federal Lands. .................................................................................................................. 45 Figure 22: Preliminary rating form for the FLH USMP web application. Source: FHWA Federal Lands. ............................................................................................................................................ 46 Figure 23: Detailed analysis form for slopes. Source: FHWA Federal Lands. ............................ 47 Figure 24: Maintenance form (left) and QRA form (right) of the USMP Web Application. Source: FHWA Federal Lands. ....................................................................................................