The VTA Guadalupe River Bridge Replacement project, located in San Jose, CA, posed several significant challenges during its execution. With a scope encompassing design-build multiple shoring systems over two seasons and the added complexity of working adjacent to live tracks, the project required meticulous planning and innovative solutions to ensure its success.

Challenges:

  • Access and Proximity to Live Tracks
    • The project site’s proximity to live tracks presented logistical hurdles in terms of access and safety. Working within such a confined space while ensuring the uninterrupted operation of the adjacent track systems demanded careful coordination and precision.
  • Low Overhead Installation
    • Overhead restrictions imposed further constraints on the installation process, necessitating specialized techniques and equipment to execute the work efficiently while complying with safety regulations.
  • Complicated Shoring Systems
    • Implementing various shoring systems, including sheets, tiebacks, beam and lagging, proved to be complex due to the project’s unique requirements and site conditions. The intricate nature of these systems demanded expertise and adaptability.
  • Presence of Old Concrete Piles
    • The discovery of old concrete piles within the location designated for new bridge footings added an unexpected layer of complexity to the project, requiring innovative solutions to mitigate delays and ensure progress.

The Solution:

Foundation’s approach to addressing the challenges encountered in the VTA Guadalupe River Bridge Replacement project set it apart and contributed to the project’s successful completion.

  • Versatility and Experience
    • Foundation leveraged its extensive experience and expertise in installing multiple types of shoring systems, backed by a diverse range of equipment. This versatility enabled the team to adapt to evolving project requirements and navigate complex site conditions effectively.
  • CISS Pile Installation
    • Despite CISS installation not being initially within Foundation’s scope, the inability of the contracted installer to drill for new bridge foundations prompted Foundation to pivot and implement CISS (Cast-in-Steel-Shell) pile installation. This flexible approach ensured continuity in project progress and adherence to the established timeline.
  • Removal of Old Concrete Piles
    • Foundation proactively addressed the challenge posed by the presence of old concrete piles by devising a strategy for their removal. By efficiently clearing the site of these obstacles, Foundation facilitated the smooth advancement of construction activities, minimizing disruptions and delays.
  • Low Overhead Sheet Pile & CISS Splicing
    • Foundation’s proficiency in low overhead sheet pile installation and CISS splicing techniques played a pivotal role in overcoming space constraints and meeting project requirements. These innovative methods enabled the efficient execution of critical tasks while optimizing resources and ensuring safety.

Conclusion:

The successful execution of the VTA Guadalupe River Bridge Replacement project demonstrates Foundation’s commitment to excellence, adaptability, and logic-based problem-solving. By navigating complex challenges with ingenuity and expertise, Foundation not only achieved project objectives but also upheld its reputation as a trusted leader in the construction industry.