presented great lakes group · mdot project manager mr. richard kathrens, p.e. ... quality control...
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Presented by: Great Lakes Engineering Group
Michigan Department of TransportationMDOT Project ManagerMr. Richard Kathrens, P.E.
Great Lakes Engineering Group, LLCProject Manager/Qualified Team Leader
Amy Trahey, P.E.
QA Engineer/Qualified Team LeaderJason Rickard, P.E.
Primary Team Members/Qualified Team LeadersEvan Currie, P.E.Eric Rickert, P.E.
Project PurposeIncrease the consistency and accuracy of inspectionsHeighten the awareness of the National Bridge Inspection Standards (NBIS) requirementsEstablish a system of checks and balances on bridge inspectionsAssure that all aspects of the law are adhered to, at a minimumEnsure that written documentation of the history of bridge construction, maintenance, and inspection exists in an acceptable structure
1CFR Vol. 69, No. 239, Part 650, Subpart C – National Bridge Inspection Standards
Project PurposeQuality Control (QC) 1 – Procedures that are intended to maintain the quality of a bridge inspection and load rating at or above a specified level. Quality Assurance (QA) 1 – The use of sampling and other measures to assure the adequacy of quality control procedures in order to verify or measure the quality level of the entire bridge inspection and load rating program.
1CFR Vol. 69, No. 239, Part 650, Subpart C – National Bridge Inspection Standards
Agency‐Specific Review ProcessField Activities at Agency Office
Initial Meeting with Bridge Owner and their Consultant (if applicable)Determine what Quality Control Measures are in PlaceFile Reviews of a Sample of BridgesField Reviews of a Sample of BridgesClosing Out Meeting with Recommendations
Table 1: Quality Assurance and Quality Control Review Breakdown
Total of Quality Assurance ReviewBridges in Inventory File Review Field Review
One to Four 1 1Five to Twenty 2 2Twenty One or More 10% of inventory maximum of 5
Quality Control ReviewFile Review Field Review
All inventory sizes 10% of inventory 10% of inventory
Summary of Agency ResultsQA Review Performed ‐ All Required Components of the QC Program IncludedQA Review Performed ‐Major Components of the QC Program IncludedQC ‐Major Program Components Missing
Tabulation and Comparison of Annual Project Results
Quality Control and Personnel QualificationsQuality Control ProcessBridge File ComponentsInspection Consistency with Established Criteria
Tabulation of Project ResultsQuality Control and Personnel Qualifications
42%
81% 81%
100%
45%
100%
60%
86% 87%
100%
50%
33%
73%
87%
100% 100% 100% 100%
86%
97%100% 100%
57%
75%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
QA Review? Consultantperforminginspections?
Is the inspector aqualified team
leader?
Load ratingsperformed by PE?
Using divinginspector to check
for scour?
Is the divinginspectorcertified?
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
Tabulation of Project ResultsQuality Control Process
62%
69%
58%
23%
60%
54%
37%
73%
67%
7%
40%
60% 60%
27%
57%
63%
37%
67%
77%
73%
22%
72%
80%
89%
81%
86% 86%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Is MBRS beingutilized?
Utililizingperiodictimelinessreviews?
Was the latestinspection
completed ontime?
RFAs sent bydocument?
10% backcheckof field
inspections?
10% backcheckof inspectionreports?
Is qualitycontrol
effective?
2007
2008
2010
2011
2008
2010
2011
2007
2008
2010
2011
2007
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2011
2010
2008
2007
2008
2010
2011
2008
2010
2011
2007
2008
2010
2011
2007
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2011
2010
2008
Tabulation of Project ResultsBridge File Components
89%
96% 96%
65%
0% 0%
50%
63%
100%
93%
60%
0% 0%
37%
60%
100%
93%
73%
3% 3%
43%44%
94%92%
69%
6%3%
47%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Is there a separatefile for each bridge?
BSIR on file? SI&A form on file? Workrecommendations
on file?
Load analysisassumption form?
Load analysissummary form?
Load analysiscalculations on file?
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2010
2011
2008
2007
Tabulation of Project ResultsBridge File Components
65%
21%
73%
19%
92%
43%
23%
77%
17%
87%
70%
50%
87%
17%
83%83%
52%
100%
14%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Plans / Sketches Scour Assessment /Migration Actions
Correspondence Maintenance Records Pictures
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2008
2007
2010
2011
Tabulation of Project ResultsInspection Consistency with Established Criteria
65%
48%
58%
21%
83%
73%
87%
33%
80%77%
80%
100%100%97%
100% 100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Comments consistent withthe ratings?
Is the level of commentssufficient?
Ratings, comments alignwith help guides?
Inspection frequencymodified appropriately?
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
2007
2008
2010
2011
Include file and field verification as a part of QC and documentAdjust bridge inspection frequency when needed, in accordance with guidelines, and documentComplete load ratings, and scour assessments (manage your Scour POA) and documentInclude maintenance records, critical findings and inspector credentials in the bridge filesCompleting underwater bridge inspections using a qualified team
CommunicationContinuing Education & Technical AwarenessUpdates to Reference GuidesEvaluation of the MDOT Inspection Notification SystemAnnual Calibration MeetingMDOT Bridge Inspection Manual including QA/QC Guidance
