aAsshto-compliant Trench Drain Systems for Infrastructure Projects

Built for Performance. Trusted by Engineers.

When drainage performance is critical, reliability isn’t a luxury — it’s a necessity.

Why Engineers Across the U.S. Choose ULMA

• Polymer Concrete Strength: Our trench drains are made of high-performance polymer concrete, offering 3x the strength of traditional concrete, with significantly less weight for easier transport and faster installation.
• AASHTO & ASTM Compliant: Designed to meet U.S. regulatory standards for heavy-duty infrastructure applications.
• High-Capacity Sloped Systems: Optimized for stormwater management in DOT projects, airports, parking lots, and logistics platforms.
• Complete Load Class Range: From A15 to F900, ULMA provides trench drain systems to cover all load class needs, with modular solutions and secure grating options.
• Philadelphia-Based Engineering & Logistics: Our U.S. warehouse and support team are based in Philadelphia, PA — close to major ports and airports for fast, reliable delivery across the East Coast and beyond.

More Than Products: Your Engineering Partner

Our ULMA Engineering Office is not a call center — it's a team of real engineers ready to support your project from start to finish. When you call ULMA, you speak to a person, not a machine.

We offer fast turnaround, value engineering, CAD layouts, and full documentation within days:

1. We study your project in detail
2. We perform hydraulic calculations
3. We provide documentation for the project
4. We offer guidance for the construction phase

REQUEST Engineering SUPPORT

Specification-Ready Drainage Systems

ULMA provides a complete 3-Part Specification (CSI format) to support engineers during the specification phase.

Our trench drain systems are delivered with:

• Fully editable 3-part spec documents
• AASHTO and ASTM references
• Load class and application guidance
• Easy integration into project manuals

Helping you specify with confidence — and avoid rework during approvals.

Pre-Sloped Trench Drains That Maximize Hydraulic Performance

ULMA’s MultiV+ and CivilF series offer built-in slopes of 0.5% and 2.5% respectively, engineered to move stormwater efficiently and reduce surface runoff. Our in-house hydraulic design tool Optimal Drain by ULMA helps define the most efficient drainage layout for your project — fast and cost-effectively.

Request Your Technical Consultation

Have a question or working on a project? Our U.S. Engineering Team is here to help with your trench drain system selection and layout.

Resources Available:

• PDF & DWG channel plans
• Grating options and compatibility guides
• Installation guides for curb, asphalt, and concrete settings
• Environmental Product Declaration (EPD)

TRENCH DRAIN SPECS & TECHNICAL DOCUMENTATION

Work with a Drainage Supplier You Can Trust

ULMA isn’t just a manufacturer — we’re your technical partner in performance-driven drainage.