the project

Jones Sports was called to the plate to rebrand the home of the Seattle Mariners from Safeco Field to T-Mobile Park. Our job was to engineer, fabricate, and install the two most complex components of the signage scope: the illuminated rooftop letters and the iconic left field clock tower and sign.

  • Services
  • Location
    Seattle, WA

Project Elements

  • Illuminated rooftop letters
  • Left field clocktower and sign

Services Rendered

  • Design Engineering
  • Fabrication
  • Installation
  • Neon

The Challenge

The timing of this project was the primary challenge. We had just ten weeks from the time the bid was awarded to the time installation was to be complete. This required quick action on our part with no room for error. The iconic left field clock tower was constructed with neon tubing and working analog hands, making it a particularly delicate piece that would require extra skill and attention during installation.


The Solution

The Jones Sports team immediately hit the field to conduct an in-person survey of the location and site conditions. We used a Faro laser scanner to gather fast and exact measurements in three dimensions. This play allowed us to quickly and accurately develop engineered construction drawings. Our fabrication team used those drawings to hit the ground running and quickly move the signs through the production process.


Components were fabricated using modular construction. This protected the delicate clock tower elements, allowed us to ship sign components fully-assembled, and improved the portability of individual components. Once on-site, installation progressed quickly and we required less working space during installation.


The Result

Jones Sports' contribution to the T-Mobile Park rebranding project was a home run. The project was completed with more than a week to spare before the Mariners were scheduled to open the 2019 Season in their newly branded ballpark.

Jones Sports: sports signage and architectural creations

the work

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next steps

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