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Steel Bridge DefectsSteel Bridge Defects

Photo courtesy of Greenhorne & O’Mara, Inc.

Steel Bridge DefectsSteel Bridge Defects

Photo courtesy of Greenhorne & O’Mara, Inc.

Steel Bridge DefectsSteel Bridge Defects

Photo courtesy of Greenhorne & O’Mara, Inc.

NDE Validation CenterNDE Validation Center

Established by FHWA in 1998.Established by FHWA in 1998.

Provides State highway agencies withProvides State highway agencies with

independent evaluation and validation ofindependent evaluation and validation of

NDE technologies.NDE technologies.

Develops new NDE technologies.Develops new NDE technologies.

Provides technical assistance to StatesProvides technical assistance to States

exploring the use of these advancedexploring the use of these advanced

technologies.technologies.

http://www.tfhrc.gov/hnr20/nde/home.htm

NDE Validation CenterNDE Validation Center

Located at TurnerLocated at Turner--FairbankFairbank HighwayHighway

Research Center in McLean, VA.Research Center in McLean, VA.

Supplements laboratory results with testSupplements laboratory results with test

bridges in Northern VA and Southern PAbridges in Northern VA and Southern PA

for field studies.for field studies.

Collects component specimens (weldedCollects component specimens (welded

members, pin/hanger assemblies, builtmembers, pin/hanger assemblies, built--upup

members) for test validationmembers) for test validation

http://www.tfhrc.gov/hnr20/nde/home.htm

NDE MethodsNDE Methods

Visual InspectionVisual Inspection

Eddy Current MethodEddy Current Method

Radiographic TestingRadiographic Testing

Ultrasonic TestingUltrasonic Testing Manual and AutomatedManual and Automated

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