Roads & Carriageways

Manhole Covers for Roads & Highways

Roads and highways require manhole covers capable of withstanding continuous vehicle traffic, including cars, buses, HGVs and other heavy commercial vehicles. Selecting the correct load class is essential to ensure long-term performance, safety and compliance with recognised standards.

For most public roads, carriageways and highways, we recommend a D400 ductile iron manhole cover. Designed to withstand heavy vehicle traffic up to 40 tonnes, D400 covers are the industry standard for the majority of highway and road applications.

Why We Recommend D400 for Roads & Highways

D400 manhole covers are widely specified for public highways, estate roads, industrial access roads and commercial developments where heavy traffic is expected. They provide the strength and durability required for everyday road use while complying with EN124 load classifications.

For particularly demanding environments, including heavily trafficked strategic road networks or specialist infrastructure projects, an E600 manhole cover may be specified where higher loading requirements apply.

Browse our E600 Manhole Covers if your project requires a higher load classification.

Typical Applications

• Public highways
• Estate roads
• Industrial access roads
• Commercial developments
• Local authority roads
• Distribution centres
• Service roads
• Highway infrastructure

Need Help Choosing?

Not sure which load class is right for your project?

Read our How to Choose the Right Manhole Cover & Frame guide or use our How to Measure a Manhole Cover guide if you’re replacing an existing cover.