Presented at: ICRI Spring Convention San Diego, CA March 23, 2000

1. A New State-of-the-Art System Used For the Inspection and Design of Rehabilitation Plans for Marine Structures - Case Studies Presented at: ICRI Spring Convention San Diego, CA March 23, 2000 Ronald E. Heffron, P.E. Han-Padron Associates

2. Topics to be Covered • The Case Study Structures • Above Water and Underwater Inspections • Preparation of Bid Documents • Repair Methods • Conclusions

3. The StructuresBerth 70-71 • Built in the mid-1920s • Concrete Construction • Asphalt Impregnated Piles

4. The StructuresBerth 70-71

5. The StructuresBerth 238-239 • Built in the mid-1920s • Concrete Construction • Asphalt Impregnated Piles

6. The StructuresBerth 238-239

7. Above Water and Underwater Inspections POLA Nomenclature Regular Inspection Principal Inspection

8. Regular Above Water and Underwater Inspections • Purpose and Goals • Rate the Structure’s Overall Condition From 1 to 6 • Determine if Repairs are Required • Prioritize the Repairs • Recommend a Future Course of Action • Establish the Scope of a Principal Inspection, if Required

9. Regular Above Water and Underwater Inspections Inspection Results

10. Above Water Principal Inspection (AWPI) • Purpose and Goals • Record Details of Each Defect to be Repaired in Order to Prepare Bid Documents • Generate Quantity and Cost Estimates • Assign Repair Method to Each Defect • Assign Repair Priority to Each Defect

11. Above Water Principal Inspection (AWPI) Automated Data Collector

12. Underwater Principal Inspection (UWPI) • Some piles that looked fine above water were completely severed underwater • Testament to the Importance of Conducting Underwater Inspections

13. Underwater Principal Inspection (UWPI) • Above water damage on Berth 70-71 led to UWPI on several piles - revealing significant u/w defects • Another Testament to the Importance of Conducting Underwater Inspections

14. Preparation of Bid Documents Using the AIRIS Database AIRIS - Automated Inspection and Repair Information System • Engineer’s Analysis Report • Review Data and Assign Repair Methods, Resolve Unusual Defects, and Assign Repair Priorities • Estimator’s Report • Quantity Totals and Unit Pricing to Produce Repair Estimates • Report of Defects To Be Repaired • Report for Inclusion in Bid Documents to Show Contractor What to Fix and How to Fix It

15. Preparation of Bid Documents

16. Repair Methods • The AIRIS System Can Currently Accommodate Any Repair Method Used on Concrete Structures, Including: • Jacketing of Piles • Shotcrete Repairs • Trowel-Applied Mortar Repairs • Epoxy Injection Repairs • Sealing of Cracks • Cast-in-Place Concrete Repairs

17. Conclusions A Well Designed Preventive Maintenance Program Can Make the Inspection and Repair Process: • BETTER • More Accurate Due to Less Handling of Data • FASTER • Produces Repair Plans in Hours Instead of Weeks • Makes the Maintenance Process Run Smoothly and Efficiently • Greatly Improves Productivity • CHEAPER • Expends Resources Efficiently by Conducting Detailed Inspections Only Where Needed • Targets Scarce Maintenance Dollars Efficiently Through a Prioritization Protocol • EASIER • Uniformity Eliminates Everyone “Reinventing the Wheel” • Standardized Reports Simplify Handling of Large Amount of Data