Frame & Cover Carriageway No.1 – D400 – 746mm × 746mm × 100mm
The Frame & Cover Carriageway No.1 – D400 is a heavy-duty ductile iron manhole cover and frame system designed for use in carriageways and highway environments subject to low-density traffic, including HGVs and fast or slow-moving vehicles.
Manufactured from durable ductile iron, this double triangular cover assembly provides excellent strength, reliability and long-term performance in demanding road and infrastructure applications. The system features a robust non-rock 3-point suspension design and a solid flange construction for enhanced stability and secure seating under traffic loads.
Finished with a protective black bitumen coating, the frame and cover system offers excellent durability and corrosion resistance for external installations. Closed keyways help improve safety and reduce debris ingress, while the product is fully Kitemark certified and compliant with BS EN124-2:2015 and HA104/09 standards.
Suitable for highways, carriageways, hard shoulders and vehicle parking areas, this D400-rated access cover is ideal for telecom, utility and civil engineering infrastructure projects.
Key Features:
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Heavy-duty ductile iron manhole cover and frame
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Double triangular cover design
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Suitable for carriageways and highway applications
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D400 load rating for road vehicle traffic including HGVs
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Durable black bitumen coated finish
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Non-rock 3-point suspension system
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Closed keyways for improved safety and debris protection
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Solid flange construction for enhanced stability
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Kitemark certified
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Complies with BS EN124-2:2015 and HA104/09
Technical Specifications:
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Product Type: Carriageway frame and cover
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Material: Ductile Iron
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Application: Highway / Carriageway
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Load Rating: D400
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Applicable Standards: BS EN124-2:2015, HA104/09
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External Dimensions: 746 × 746mm
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Clear Opening: 600 × 600mm
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Frame Depth: 100mm
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Weight: 62kg
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Finish: Black bitumen coated
Applications:
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Highway and carriageway infrastructure
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Roads and pedestrian streets
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Hard shoulders and parking areas
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Utility access chambers
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Telecom and civil engineering projects
