Frame & Cover Carriageway No.3
The Frame & Cover Carriageway No.3 – 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 robust ductile iron, this double triangular cover assembly delivers excellent durability, load-bearing performance and long-term reliability for demanding highway and infrastructure applications. The system incorporates a non-rock 3-point suspension design and solid flange construction for enhanced stability and secure seating under traffic loading conditions.
Finished with a protective black bitumen coating, the cover and frame offer excellent resistance to corrosion and harsh outdoor environments. Closed keyways help improve safety while reducing debris ingress, and the unit is fully Kitemark certified in compliance with BS EN124-2:2015 and HA104/09 standards.
Designed for carriageways, hard shoulders and parking areas, this D400-rated access cover is ideal for telecom, utility and civil engineering infrastructure projects requiring large clear opening access.
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: 1940 × 820mm
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Clear Opening: 1800 × 675mm
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Frame Depth: 150mm
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Weight: 260kg
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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
