Bridge Maintenance Travelers

Inspection, repairing and maintaining the bridges that connect us to one another is a complex task. A more daunting task is designing a piece of equipment that allows us to travel the underside of the bridge in a streamlined, efficient way that allows work to be performed safely.

SISSCO’s vast amount of experience allows us to work closely with both General Contractors and the Public Sector to design, fabricate, maintain and inspect bridge maintenance travelers.

We also offer

Mechanical, Structural
& Electrical Design

Our design team will engage with the proper agency to not only develop a specification for the maintenance traveler, but also a complete model and fabrication package.

Fabrication, Assembly & Testing

All fabrication is performed in our facilities under our strict quality management system. Assembly and Shop Testing, if required, are typically done at our site and witnessed by the owner prior to shipping to site.

INSTALLATION

Based on the nature of the project, we offer turnkey installation using either SISSCO Labor or Union Labor. Our project installation team will prepare all necessary Certified Lift Plans and other documentation required for a safe installation.

Inspection & Maintenance

SISSCO’s experienced technicians perform inspections and maintenance on numerous bridge maintenance travelers. This service is key in making sure each traveler is safe for operation as well as reliable every time it goes into service.

Operation

SISSCO works for dozens of contractors who need to use the bridge maintenance travelers to complete their work contracts. Having an experienced operator reduces the risk and liability to the contractor as well as any downtime as these operators can fix most small issues that may arise during normal operation.

Our Work

SISSCO’s design, fabrication, testing and installation of 6 Bridge Maintenance Travelers for the Goethals Bridge, connecting commuters from New Jersey to New York City, allows access to the underside of the bridge for ongoing maintenance and inspections.

As this was a design build contract, SISSCO’s engineering team was tasked to design all aspects of the bridge maintenance traveler.

For the electrical controls, SISSCO designed a custom PLC-controlled anti-skew detection and correction system that allows the traveler to self-correct as it travels down the runway system.

Features of this controls system included a large HMI display with continuous feedback for skew as well as all other possible faults or limits.  All controls components were designed for saltwater outdoor use as well as having vandal protection.

The structural & mechanical design was 3D modeled using various software platforms along with a full finite element analysis of all componentry. 

Fabrication and assembly of the traveler was completed by SISSCO’s production and welding team.  Each traveler was hung on a test runway system set up in SISSCO’s facility and was ran through a rigorous testing procedure for the owner’s approval.

SISSCO also performed a turnkey Union installation of the travelers onto the Goethals Bridge.  After installation, a full commissioning and testing procedure was completed for the final turnover of the bridge maintenance travelers.

Our Work

SISSCO’s design, fabrication, testing and installation of 6 Bridge Maintenance Travelers for the Goethals Bridge, connecting commuters from New Jersey to New York City, allows access to the underside of the bridge for ongoing maintenance and inspections.

As this was a design build contract, SISSCO’s engineering team was tasked to design all aspects of the bridge maintenance traveler.

For the electrical controls, SISSCO designed a custom PLC-controlled anti-skew detection and correction system that allows the traveler to self-correct as it travels down the runway system.

Features of this controls system included a large HMI display with continuous feedback for skew as well as all other possible faults or limits.  All controls components were designed for saltwater outdoor use as well as having vandal protection.

The structural & mechanical design was 3D modeled using various software platforms along with a full finite element analysis of all componentry. 

Fabrication and assembly of the traveler was completed by SISSCO’s production and welding team.  Each traveler was hung on a test runway system set up in SISSCO’s facility and was ran through a rigorous testing procedure for the owner’s approval.

SISSCO also performed a turnkey Union installation of the travelers onto the Goethals Bridge.  After installation, a full commissioning and testing procedure was completed for the final turnover of the bridge maintenance travelers.

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