GEOTECHNICAL ASSET MANAGEMENT MIDWEST GEOTECHNICAL CONF., 9/17/2019 - PowerPoint PPT Presentation

GEOTECHNICAL ASSET MANAGEMENT MIDWEST GEOTECHNICAL CONF., 9/17/2019

GEOTECHNICAL ASSET MANAGEMENT Steve Taliaferro ODOT Office of Geotechnical Engineering 2 | 2019 Midwest Geotechnical Conference

NCHRP RESEARCH REPORT 903 3 | 2019 Midwest Geotechnical Conference

REPORT 903 o Research Overview (Vol. 1) o GAM Types o Implementation Manual (Vol. 2) o “Why” of GAM o Starting GAM Implementation o Understanding the GAM Process 4 | 2019 Midwest Geotechnical Conference

GAM TYPES o Embankments o Slopes o Soil and/or Rock o Retaining Walls o Subgrades o Ground Improvements o AUM and Karst (performance risk) o Unimproved/natural hazard 5 | 2019 Midwest Geotechnical Conference

“WHY” OF GAM o Financial Responsibility o Managing Risk o Decision Support 6 | 2019 Midwest Geotechnical Conference

IMPLEMENTATION o Step 1: Identify & Locate (Inventory) o Step 2: Record Asset Operations and Maintenance (O&M) Conditions o Step 3: Assess Asset Performance Consequences 7 | 2019 Midwest Geotechnical Conference

IMPLEMENTATION o Step 4: Review Treatment Recommendations o Step 5: Analyze the Impacts of Differing Investment Levels o Step 6: Communicate Results 8 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY 1. As the asset is defined in the NCHRP Research Report 903 (Geotechnical Asset Management for Transportation Agencies), does your state inventory : o Embankments o Slopes o Subgrades o Retaining Walls Landslides (Not an asset in Report 903) o o Other (describe here) 9 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY 2. As the asset is defined in the NCHRP Research Report 903 (Geotechnical Asset Management for Transportation Agencies), does your state rate: o Embankments o Slopes o Subgrades o Retaining Walls Landslides (Not an asset in Report 903) o o Other (describe here) 10 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY 3. If you answered yes to any of the above, please respond to the following: Briefly describe how your GAM system came o about o How is it accessed (by the public, internally, etc.)? o Who populates it? o How do you use the data? o Do you program projects using the data? 11 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY RESULTS Inventory: o No states are inventorying embankments, slopes, and subgrades as specifically defined in Rpt 903 o 7 of 9 states are either actively inventorying retaining walls or have development underway with such an inventory “under discussion” in an additional state 12 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY RESULTS Inventory: o 5 of 9 states are actively inventorying landslides on either a statewide (2 states) or limited (3 states) basis 13 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY RESULTS Rating: o 2 of 9 states are rating retaining walls 14 | 2019 Midwest Geotechnical Conference

MIDWEST STATE GAM SURVEY RESULTS GAM Systems: o Active retaining wall inventories are being collected by consultants and internal forces o In-house developed databases and University research contributions common o ArcGIS Collector used by 2 states o Asset Management Legislation 15 | 2019 Midwest Geotechnical Conference

OHIO’S GAM Retaining Walls o 3 year initial population underway o 10 year re-inspection cycle o Inventory Fields vs. Inspection Fields 16 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 17 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 18 | 2019 Midwest Geotechnical Conference

OHIO’S GAM Geohazards o Landslide o Rockfall o Abandoned Underground Mines o Re-inspection cycles based on severity/risk rating 19 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 20 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 21 | 2019 Midwest Geotechnical Conference

OHIO’S GAM DISTRICT 12 - SULFATE MAP Legend RIVER I-90 SO4 (ppm) 0-3000 !! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 0 ! ! ! ! 3000-5000 ! ! ! ! 9 ! ! - ! ! ! ! ! ! ! ! ! ! ! I ! ! ! ! ! ! ! ! 5000-8000 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 8000+ ! R U P S D I Chemical_Stabilization L C D U N E A L E K Full_Depth A L New_Pavement_Projects ! ! ! ! SADIE N O R T H W E S T I-90 ! ! ! ! ! ! ! ! ! ! ! T ! ! ! L ! ! E 0 B 8 R ! 4 ! - I E ! T ! U ! ! ! ! O ! ! ! ! I - ! 4 MEDINA 8 WILLOW 0 I-271 I-71 I-77 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, I - 8 0 IGN, and the GIS User Community 22 | 2019 Midwest Geotechnical Conference

OHIO’S GAM o Historic geotechnical information/data is an asset o DIGGS compatible data now required in Ohio 23 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 24 | 2019 Midwest Geotechnical Conference

OHIO’S GAM 25 | 2019 Midwest Geotechnical Conference

QUESTIONS/DISCUSSION Last updated 9/24/2019 26 | 2019 Midwest Geotechnical Conference