Selco Manufacturing delivers precision-engineered steel structures and infrastructure fabrication services that make the nation’s most vital bridges and structures possible. Backed by our team of experienced engineers, craftsmen, and quality control professionals, we bring more than a century of expertise and professional integrity to every project we support.
Selco was founded in 1907 as a supplier of third rail components for the original New York City Subway, and since then we have become a highly-regarded source of steel fabrication services. We develop, build, and install a range of structures that are critical for transit, heavy civil, and other public works projects. We’re also a trusted provider of custom-engineered electrical enclosure products.
All our structural steel fabrication services meet AISC and ISO 9001:2015 standards for precision and build quality. Our team is dedicated to accuracy and precision in everything we manufacture, as well as excellent customer support services.
Below are several examples of our work on a variety of infrastructure and electrical projects.

Bridges
Learn MoreDelivering on Iconic Bridge and Infrastructure Projects
Selco has contributed custom-fabricated components and steel structures to some of the Northeast’s most iconic infrastructure projects.
For the Goethals Bridge $1.5 billion reconstruction project, we supplied over 14,000 lin. ft. of tubular railings and more than 200 barrier boxes. These were fabricated to meet or surpass DOT’s standards for transit structures.
We also supported the restoration of the historic Brooklyn Bridge by providing custom ornamental fencing and permanent steel barriers. This was part of a $508 million contract, which required balancing design, functionality, and preservation of the bridge’s aesthetics.
These projects showcase our ability to blend craftsmanship with technical precision in support of critical infrastructure that serves millions every day.

Transit/Rail Lines and Structures
Learn MoreSupporting Complex Transit Projects
Our steel fabrication services are important for the following regional transit projects.
For the JFK AirTrain project, we delivered 142,000 ft. of guardrail that was essential to protecting the public and valuable equipment during the project. We also provided structural steel for the station frameworks, along with assorted aluminum cable trays at each AirTrain station, and stainless steel trays to connect Howard Beach Station.
On the No. 7 Line extension, Selco manufactured power distribution products, signal cages, cable trays, third rail brackets, protection boards, and insulators. All of these components were delivered on schedule and to the customer’s specifications.

3rd Rail Transit Materials & Products
Learn MoreExpertise in Third Rail and Transit Infrastructure
Selco has specialized in third rail components and steel structures for urban transportation systems for over a century. This includes supplying third rail contact materials, signal platforms, messenger brackets, and cable tray systems for the King’s Highway Interlocking project.
During the Ben Franklin Bridge track replacement, we fabricated and delivered stainless steel chambers, coverboards, brackets, insulators, and fixation hardware to ensure the long-term reliability of critical rail infrastructure.

Steel Structures
Learn MoreSteel Structures for Transit Stations and Public Works
Selco has delivered major steel structures and fabrication services for numerous transit station projects, including overhead infrastructure and municipal works. As part of the $2.5 billion LIRR Third Track Expansion, we built a two-story signal bridge measuring 52 ft. long by 36 ft. high, and a cantilever structure 12 ft. long by 33 ft. high. Both show our ability to tackle complex and sizable steel fabrication challenges.
For the Marcus Hook Station project, we provided all structural steel, railings, and roof framing across multiple SEPTA facilities, helping to upgrade and modernize the region’s transit infrastructure.

Custom Steel Electrical Enclosures & Junction Boxes
Learn MoreIndustrial-Grade Electrical Enclosures
Selco also designs U.L.-listed and NEMA-rated enclosures, junction boxes, and cabinets, including:
- Explosion-proof enclosures.
- Hinged weatherproof boxes.
- Sidewalk pull boxes.
- Unflanged junction boxes.
- Checkered cover access systems.
We also produce aluminum and cast iron components for power distribution, signal relay protection, and rail yard applications, which supports reliable electrical and signal systems across industries.

Flood Protection
Learn MoreFlood Mitigation and Extreme Weather Protection for Infrastructure Resiliency
Following Superstorm Sandy, Selco helped strengthen structures against flooding by fabricating aluminum framing systems for stairwell entrances at four Lower Manhattan subway stations, including Whitehall and Broad Street.
We also delivered vent vault frames for Con Edison, engineered to keep underground utility systems sealed during extreme weather events. Our flood mitigation solutions are designed for pressure resistance, corrosion resistance, and easy field retrofitting – helping safeguard infrastructure in a changing climate.
Your Partner for Infrastructure and Transit Fabrication Projects
Selco Manufacturing is more than merely a fabricator. We are also a knowledgeable partner dedicated to supporting your most critical transit, structural, and infrastructure needs. From bridges and rail systems to public works, electrical enclosures, and flood protection, we bring together meticulous detailing, skilled craftsmanship, and rigorous quality control to deliver solutions that last.
Every project benefits from over 100 years of experience. We are also AISC and ISO 9001:2015 certified. We understand the challenges of building and maintaining public infrastructure, and we’re here to help you meet them head-on.
Let’s build infrastructure that stands the test of time, together. Request a quote to learn more about Selco’s advanced steel fabrication capabilities and to discuss your next infrastructure or enclosure project.
