Your Partner. Creating the Future.
Proud sponsors of the 2022 American Society of Highway Engineers (ASHE) National Conference, our team is delighted to see our industry colleagues and friends in person once again!
We invite you to attend Gannett Fleming’s engaging presentations by our Ohio-based transportation and highway engineers as we share key insights and best practices from partnering with the Ohio Department of Transportation and the City of Columbus to create the “next generation of travel.”
See you in Columbus for the 2022 ASHE National Conference!
Pictured above: First-in-state ACIP Foundations for STA-77 Bridge | Canton, Ohio.
Join Our Presentations
Lazelle Road Widening
Saturday, May 14, 2022 • 8:00 a.m. – 9:30 a.m. EDT • Highway Track; Room 30
After being destroyed in the Great Flood of 1913, most rail infrastructure in Central Ohio was quickly rebuilt on new alignments and higher embankments. In northern Columbus, railroad tracks crossing Flint Road at grade and an extreme skew saw the embankment raised during reconstruction efforts, which created Lazelle Road on a new offset roadway alignment and added drainage under new railroad bridges.
Once crossing agricultural lands, this narrow road is now an important artery in one of the fastest-growing areas of Columbus. The intersection of Lazelle Road with Flint Road was a perpetual bottleneck for traffic between large corporate offices, apartment buildings, one of the largest malls in Ohio, and I-270 and US 23 roadways.
Following years of study, final design that began in 2012, and construction of two contracts that started in 2018, a widened Lazelle Road now provides a safe and efficient transportation system that meets the community’s current and future needs.
Beyond the coordination for replacing railroad bridges owned by Norfolk Southern and CSX, utility relocation and coordination was a significant task with high-voltage power, multiple waterlines, gas lines, and new storm sewer infrastructure to be constructed into the shale at the roadway base. The roundabout geometric design was modified to avoid critical underground telecommunications vaults and remnant parcels were used for stormwater detention, mitigating impacts to the valuable surrounding real estate.
During construction, the extensive coordination continued to be challenging, in addition to the significant utility and railroad involvement. The presentation will address the multi-faceted coordination, from design through construction, required to successfully deliver the project.
Augered Cast-in-Place (ACIP) Piles for Bridge Foundations
Saturday, May 14, 2022 • 10:00 a.m. – 11:30 a.m. EDT • Highway Construction Track; Room 30
Augered cast-in-place (ACIP) piles have been used in Europe since the 1960s and extensively in the United States since the 1980s. Their use has been prevalent in vertical structures, while bridge and transportation structures have been slow to adopt, with AASHTO not addressing their design.
The new two-span (190’ and 293’) and highly skewed (64.5 degree) STA-77-0936 bridge in Canton, Ohio, sits atop two highly charged aquifers that provided the opportunity to leverage the constructability benefits of ACIP foundations for the first time for the Ohio Department of Transportation. Through this project, our team collected data to help validate design methods, implemented an integrity testing program, and compared various methods of load testing the in-situ performance of such an array.
In total, the 217-foot-long pier footing was supported by 176 ACIP piles in four rows that required battered, low headroom, and phased installations, in addition to the charged aquifer challenges. Being a new foundation type for the Ohio Department of Transportation, the project had a rigorous installation plan that defined demonstration piles, mix designs, full-length cage installations, thermal integrity testing, static testing, and dynamic testing.
This presentation will provide an overview of the project, structural and geotechnical design specifications, the installation process, testing, and lessons learned from this first-of-its-kind foundation for the Ohio Department of Transportation. Data gathered from this large-scale use of ACIP piles for a large bridge foundation can help advance their acceptance as a viable bridge foundation in AASHTO publications and provide another beneficial solution for highway and bridge owners.