July 18, 2024 1:00 pm
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
Presentation starts at: 8:45
Q&A starts at: 47:29
Webinar Document:
Intro and News Slides: Intro & News Slides July 2024
Presentation Slides: SR 79 Gila River AECOM ABC Presentation Slides
Description:
This 1,416'-10" span bridge replacement project was completed in 2023. The 14 spans bridge was replaced as a series of 4 x 3-span units and 1 x 2-span unit, on each side. Each half of the bridge was slid over the course of two separate weekends. The project is over the Gila River on State Route 79 located immediately north of Florence, Arizona. 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.
Presentation Photos/Graphics:
5) Completed Bridge