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Navigating a Navigating a MOTEMS MOTEMS Audit Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008
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Page 1: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Navigating a Navigating a MOTEMS MOTEMS AuditAudit

Ted Trenkwalder, P.E., S.E.

Structural Engineer

Ben C. Gerwick, Inc.September  10, 2008

Page 2: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Presentation OutlineIntroduction

Ben C. Gerwick, IncAudits Completed for Four High Risk TerminalsFirst two Audits Submitted and Reviewed by CSLC

The Audit ProcessLessons LearnedSummaryQuestions

Page 3: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessSurveys, Surveys, SurveysOperational Capacity and Demand AnalysesSeismic Capacity and Demand AnalysesChecklists, Missing Information, and Deficiency TablesExecutive Summary and Audit Submittal

Page 4: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessSurveys, Surveys, Surveys,…

Data Collection and ReviewAbove and Below Water InvestigationsGeotechnical InvestigationsHydrographic and Topographic SurveyMaterial Testing 

Page 5: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessData Collection and Review

Existing As‐Built DrawingsExisting As‐Built SpecificationsExisting Condition Survey(s)Existing Geotechnical InformationExisting Hydrographic or Topographic InformationExisting Vessel Information and General ArrangementsExisting Terminal Operations Manual(s) Available Information from Public Records

Page 6: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessAbove and Below Water Inspections

PE Divers and Level of InspectionsCoordinate Inspections and Critical MembersCompile Inspection Results and Assign Ratings Condition Survey Report (s)

Page 7: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessGeotechnical Investigations

Borings and CPTs Available borings may not meet MOTEMS 100‐ft requirementMap both transverse and longitudinal soil profilesConsider potential repairs and upgrades to facilities

Seismic Analyses and Hazard AnalysesSite Specific Response SpectraSoil Liquefaction and lateral stabilityP‐y and T‐z requirementsAbutments

Page 8: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessOperational Capacity and Demand Analyses

Operational Dead and Live LoadsBerthing Mooring

Winds and CurrentsPassing Vessel Effects

Fender SystemsMooring Hardware

Page 9: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessSeismic Capacity and Demand Analyses

SeismicDead Load and Equipment Inertial and Kinematic Loads

Page 10: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessChecklists, Missing Information, and Deficiency Tables

CSLC Draft Audit Manual ChecklistsMissing Information Deficiency Tables

Page 11: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

The Audit ProcessExecutive Summary and Audit Submittal

Structural Summaries and CARsComponent Summaries and RAPsPath Forward

Addresses deficiencies and scheduled repairs

Audit Submittal Two (2) Copies and CDs to CSLC

7 to 11 Volumes (4‐in binders)1,200 to 3,000 pages 250 ‐ 750 MB of information 

Page 12: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedPlanning and Scheduling Immediate Mitigation May be RequiredTesting is knowledgeMOTEMS ModificationsCommunication

Page 13: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedPlanning and Scheduling

Recommend 12 months from inspection to submittal

Page 14: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedPlanning and Scheduling (Continued)

Start Condition Surveys earlyCurrents, tides, and weather will affect inspection schedulesShip schedules will interrupt inspection schedules

Page 15: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedPlanning and Scheduling (Continued)

Start Geotechnical field investigations early also

Site Specific Spectra and soil parameters required for analysesPotential Liquefaction and Lateral Spreading may direct mitigationmeasures

Page 16: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedPlanning and Scheduling (Continued)

Compile Draft Checklists & DeficienciesDevelop repair design plan to eliminate operational deficienciesPlan CSLC walk down after surveys and deficiency direction

Review Path Forward with Corporate Local MOTs require input and approval from CorporateCSLC will hold MOTs to Repair Plan Schedules

Page 17: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMitigations may be required

Audits are performed on circa 1950 terminals with some improvements

Page 18: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMitigations may be required (Continued)

Expect Operational Deficiencies in Older Structures

Damaged Spring Fender Assembly

Relocated Mooring Hook

Page 19: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMitigations may be required (Continued)

Events Happen

Page 20: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedTesting is knowledge

Existing Fender Assembly

Pipeway Repair Connection

Page 21: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMOTEMS Audit Modifications

Executive Summary Table ModificationsAbove and Below Water CARsFollow‐Up Action Items

Page 22: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMOTEMS Audit Modifications (Continued)

Deficiency Table ModificationsSeparate columns for Deficiency and Suggested MitigationAdded Date Completed column

Page 23: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedMOTEMS Audit Modifications

Condition Surveys vs. Assessments

A CAR is a Condition Assessment RatingA Condition Survey refers to loss of section

Underwater vs. Above waterMOTEMS states +3‐ft MLLW for underwater survey.  Above water above +3‐ft MLLW

Page 24: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Lessons LearnedCommunication

Need a Project Champion at the TerminalCoordination between MOT, Audit Team, and CSLC

Include CSLC in schedule and walk throughInform CSLC of known deficiencies and directions

Request Clarification from SLC, if needed. 

Page 25: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

SummaryAudit Process includes surveys, analyses, and checklists, deficiency tables, summary, and submittal.Recommend 12 months to complete AuditExpect mitigation requirements for older facilitiesTesting may help for marginal capacitiesMOT needs a Project Manager with good communication skills

Page 26: Navigating a MOTEMS Audit - State Lands Commission · Navigating a MOTEMS Audit Ted Trenkwalder, P.E., S.E. Structural Engineer Ben C. Gerwick, Inc. September 10, 2008

Navigating a Navigating a MOTEMS MOTEMS AuditAudit

Ted Trenkwalder, P.E., S.E.

Structural Engineer

Ben C. Gerwick, Inc.


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