One Wallace Ave.  South Portland, Maine  04106  207-780-6722

Design & Build

Casco Bay Steel Structures, Inc. works closely with numerous DOT’s and Design Teams during Design/Build projects. The most common items during the Design/Build are: most economical fabrication options, material availability including the use of High Performance material (HPS), shipping options (including weights, lengths, widths and possible barge delivery options) as well as detailing to produce shop drawings. Working with these DOT’s and Design Teams upfront result in an economical design that reduces a lot of discussion once the project is awarded.

We welcome any calls/inquiries from DOT’s, GC’s or Designers at any time to discuss and your project or any questions you may have regarding steel bridge fabrication projects. Contact us


Casco Bay Steel Structures, Inc. notes in our Quality Policy “Our goal is to continually meet all contract requirements, provide a high quality of finished product and service to our customers and to assure that all these goals are met or exceeded” and with our highly experienced team, all the way from Project Managers, Shop Supervisors, fabrication staff, logistics and shipping department we continually meet or exceed all of these. We fabricate steel bridge jobs anywhere from 10 tons all the way to over 10,000 tons. We continue to expand our territory and gain new customers by delivering on our promise. Please check out some of our key highlighted bridge projects here on our website. We have approximately 250,000 square feet of enclosed fabrication space and over 60 acres of property for storage and full shop assemblies. Being only approximately 5 miles from water access, loading and shipping via barge has been an advantage on numerous projects as well as rail siding at all 3 facilities.