Concrete Bridge Durability

This session will look at aspects of concrete bridge durability including inspection, testing, deterioration mechanisms and predicting future deterioration

Moderator: Barry Colford, AECOM

Bridge Concrete Deterioration Assessment through Digital Imaging Technologies

• Ed Zhou, National Bridge Instrumentation and Evaluation Lead, AECOM

TBD

• Barry Colford, Bridge Preservation Practice Lead, AECOM        

Bios

Ed Zhou, PhD, PE, is AECOM’s Bridge Instrumentation & Evaluation Lead in North America, with more than 27 years of experience in bridge engineering practice. Zhou specializes in bridge condition evaluation, asset management, load rating, fatigue assessment, and structural testing/monitoring using a variety of field instrumentation and digital imaging technologies. Zhou has served on several national technical committees of ASCE, TRB and AREMA. He also taught several bridge engineering courses at Johns Hopkins University. Zhou went to Northern Jiaotong University in Beijing, China for his undergraduate, and got his master's degree and doctoral degree from Lehigh University.

Barry Colford has more than 40 years of experience in the design and management of highway structures, including with AECOM since 2015, in his previous role as Chief Engineer of the Forth Road Bridge (a 3,300 ft main span suspension bridge in the UK), and on various motorway bridge design projects in the UK. He has particular experience and expertise in the inspection, testing, maintenance, and monitoring of bridges and tunnels; deck rehabilitations and pavements; protective systems including painting and cathodic protection; high strength tension elements; joints and bearings and load assessments. He performs peer reviews of scopes of work and design reports. He is also involved in helping clients with a methodology to identify and prioritize risk on tunnels and  bridges by rating the criticality and vulnerability of the main elements. Colford has provided advice and assistance to bridge and tunnel owners in the UK, China, and the US. He has been involved in supervising major preservation, rehabilitation and strengthening works on all bridge types including major suspension, cable stayed and truss bridges, as well as the inspection and load rating of these bridges. Since 2015, Colford has led AECOM’s North America Bridge and Tunnel Asset Management Group and has published a number of papers on the maintenance and inspection of  bridges. He is a Licensed Professional Engineer in Pennsylvania, Delaware, and New Jersey and a Fellow of the Institution of Civil Engineers in London. He won an Institution of Civil Engineers medal for a paper on bridge rehabilitation in 2014.