Specialized Services

Specialized Services

STS Intermodal is in the business of transporting and storing Intermodal containers for operators worldwide. Located in Portland, Oregon, we offer a complete line of service in all aspects of chemical transportation, as well as a variety of specialized services. Our wide range of services allow us to take an innovative approach to providing our customers with dependable and quality services.

Our complete line of specialized services


ISO Tank Inspections, Testing, and Repair

STS offers a variety of ISO tank specific inspection, testing, and repair services to meet your transportation needs. These include:

  • In-gate and out-gate inspections with interchange and photos
  • 2.5 year safety verification testing
  • ISO Tank repairs
Steam Generator

ISO Tank Heating

From our Portland, Oregon, location STS offers tank heating services utilizing our Sioux Steam Generator, which allows you to unload or transload various products that have a specific viscosity or freezing point. Through our steam generator we can heat your tanks quickly and efficiently.


Flexitank Fitting & Removal

Flexible bulk liquid tanks are a growing trend in the shipping industry. They are suitable for a range of non-hazardous products that include water, wine, juice, and additives.

Flexitanks offer the ability to ship up to 6,340 gallons in a 20-foot container and do not need to be cleaned or returned to a point of origin, which can significantly reduce transportation costs.

STS’ service offerings include fitting, removal, and disposal of Flexitank bladders.

diesel chassis repair

Local and Mobile Diesel and Chassis Repairs

STS provides on-site and mobile diesel engine repairs, and in addition to our diesel repairs, we also offer chassis repair services. If services cannot be provided remotely, we will utilize our state of the art Pro-Tote tractor to transport your vehicle to a qualified repair location.


Onan Generator Repairs

STS is a certified Onan generator report location, our qualified professionals are able to work on local and mobile. Examples of vehicles we repair include Class B Sprinters, Class A Motorhomes, and more.

Don’t see your service? Give us a call at 503-542-0950 or send us a message.

What Our Customers Have to Say:

“STS Intermodal has been a trusted partner for ChemLogix Global for over ten years. Operated by true professionals, STS always finds a way to get the job done.”

Stephen Hamilton
Managing Director, Global
Chemlogix Global

“I cannot say enough about how wonderful this team is and how much I appreciate everything you do for us. You make us feel like it is not just business but a relationship. I think you all are just wonderful and cannot express enough how much I value our relationship. Thank you so much for all the hard work you do!! You guys are the Best of the Best of the Best!!!!”

Cyndi Brooks
Operations Manager

“STS has been a valued carrier partner of ours since 2006. Their Operations team has always been quick to respond, proactive when it comes to solving problems, extremely courteous and always professional. Moreover, their drivers are both knowledgeable and respectful; a trusted partner for us to put in front of our customers. We very much value our long- standing relationship with STS and appreciate the high quality level of service they continue to provide.”

Barb Slawter
Optimodal, Inc.

“I just wanted to extend a special thank you from myself and our Kalama production teams to your dispatch team and drivers for getting two tanks delivered to us yesterday. We all very, very much appreciate the partnership Emerald has with STS. Your efforts to service our Kalama plant are never taken for granted and do not go unnoticed.”

Emerald Materials

Let us handle your
specialized needs