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2025 ACEC-NH & NHDOT Technical Exchange Conference
Thursday April 17, 2025 11:15am - 12:15pm EDT
Session 7A: The Replacement of the Park Avenue Viaduct: Micropile Foundations and Innovative Construction Techniques
Speakers: Arsanious Guirguis, Hardesty & Hanover
- The 130-year-old Park Avenue Viaduct, an elevated steel structure, services over 200,000 commuters every weekday. Last rehabilitated in 1993, the viaduct is being replaced and made more resilient using a rapid construction approach with minimal disruption to commuters. The project, located between East 115th and East 123rd Streets, required rock-socketed drilled micropile foundations installed in low overhead conditions utilizing innovative construction techniques while minimizing disturbances to the neighborhood and surrounding structures. The project's quality assurance program included a comprehensive testing program comprised of verification testing on sacrificial micropiles, proof tests at substructure locations, and rock socket video inspections.

Session 7B: Sturbridge MA Bridge Replacement - Micropiles/Integral Abutments
Speaker: Michael Sullivan, CHA; Sam Turek, CHA
- Following MassDOT’s 2023 moratorium on the use of integral abutment bridges founded on micropiles, CHA worked with MassDOT to design and construct two such trial bridges, including the recently completed Champeaux Road Bridge in Sturbridge, MA. CHA developed a structural monitoring plan to measure the bridge’s performance over three years. The real-time monitoring includes strain gauges in the superstructure and micropiles, and inclinometers and pressure sensors at the back of abutments. A data acquisition logger will take continuous readings from all the devices. CHA will use the information to develop design standards for future MassDOT bridge projects.  
Moderators
avatar for Kristen Hayden, PE

Kristen Hayden, PE

Project Manager, Fuss & O'Neill, Inc.
Kristen specializes in developing drainage designs for large-scale highway and roadway projects. She has more than 20 years of experience in stormwater and roadway design for municipal and state projects across New England. Kristen has an extensive understanding of stormwater regulations... Read More →
Speakers
avatar for Arsanious Guirguis

Arsanious Guirguis

Lead Geotechnical Engineer, Hardesty & Hanover
Arsani is a Senior Principal Geotechnical Engineer at H&H's with over 13 years of hands-on experience in designing and managing the construction of foundations and substructures for a wide range of bridges across the Northeast. His portfolio includes movable bridges, highway overpasses... Read More →
avatar for Michael Sullivan, PE

Michael Sullivan, PE

Senior Project Manager, Principal Engineer, Clough, Harbour & Associates (CHA)
Michael Sullivan, PE, has over 19 years of engineering design and project management experience. His technical expertise includes designing, assessing, and inspecting multiple types of bridges for state agencies throughout the northeast, including the Rhode Island Department of Transportation... Read More →
avatar for Sam Turek

Sam Turek

Project Engineer, Clough, Harbour & Associates (CHA)
Sam Turek is a Project Engineer in the Transportation Bridge Group at Clough, Harbour & Associates, LLP.  He has 7 years of civil engineering experience, specializing in bridge design and analysis. Sam is responsible for bridge design including analytical bridge modeling, calculations... Read More →
Thursday April 17, 2025 11:15am - 12:15pm EDT
Salon C

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