Robert Ringwald, P.E., S.E., Senior Project Manager, Associate Vice President, AECOM
Christopher A. Labye, P.E., Senior Bridge Engineer, Technical Quality Auditor, AECOM

Earn 1-hour Certificate of Attendance (https://abc-utc.fiu.edu/webinars/certificates-of-attendance/)

Click to Register (opening soon!)

Announcements: This portion of the IBT/ABC-UTC Monthly Webinar will provide you with the latest happenings related to Innovative Bridge Technologies and ABC in the US and abroad to keep you informed. (10 minutes)

Featured Presentation:  Bridge Slide over Gila River SR 79 in Arizona (35 minutes)

Description:

This project was completed in 2023.  It involved the bridge replacement of an existing 1,507-foot long, 30-span, steel girder structure over Gila River on State Route 79 (SR 79) located immediately north of Florence, Arizona.  The existing bridge carried one lane of traffic in each direction of travel with 3 foot shoulders, resulting in no safe access for pedestrians on the bridge.  The new bridge structure provided a barrier-separated sidewalk and wider shoulders to enhance both pedestrian and vehicular safety.   The “shortest” detour was over 100 miles in length, therefore, full closure of the bridge for reconstruction was not practical.  A phased bridge slide method was implemented to utilize portions of the new bridge to phase removal and reconstruction activities such that traffic could be maintained during construction.

 Presenters:
 

 

Robert Ringwald, P.E., S.E.
Senior Project Engineer, Associated Vice President
AECOM

Rob has 33 years of experience in engineering and another 5 years in construction. He is an Associate Vice President at AECOM. He has served as a project manager on numerous major freeway and rural projects utilizing various delivery methods including design-bid-build, design-build and construction-manager-at-risk.  His recent experience includes two accelerated bridge construction (ABC) bridge slide projects. Rob graduated from Arizona State University with a BSE in Civil Engineering and a MSE in Structural Engineering.

 

 

Christopher A. Labye, P.E.
Senior Bridge Engineer, Technical Quality Auditor
AECOM

 

Chris as a senior bridge engineer and technical quality auditor for AECOM and also serves as lead quality manager for the Phoenix and Tucson offices in Arizona.  Chris has 27 years of experience in bridge design, and approximately 4 years of geotechnical engineering in transportation.  He has served as the lead bridge designer for over 50 miles of preliminary design concept reports and bridge selection reports for the Phoenix Metropolitan Freeway System. Chris graduated from the University of Colorado, Boulder, with a BSE in Civil Engineering.

3) Night bridge slide in progress

4) Day image of bridge slide in progress

Question & Answer Period: Submit your questions when you register for the webinar and also in the question box during the webinar. (15 minutes)

Certificate of Attendance: Each site registered for this webinar will receive an email for your response. Just click the first link in the email to obtain a certificate. For multiple participants at a site, the point-of-contact registrant for that site also clicks the second link in the email, logs in, and clicks “Attendees” to provide first name, last name, and email address for each participant at that site; each participant will then receive an automatic email with link to print an individual certificate. Accessing the second link in the email will also allow participants to print certificates for past webinars that were attended by simply clicking the webinar title. Please let Ms. Ankitha Arvan at FIU know if you have questions or need assistance with receiving your certificate. Anthika’s email address is aarvan@fiu.edu.

For More Information: Please visit our website (abc-utc.fiu.edu) for more information. You can also contact us by sending an email to abc@fiu.edu.