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Under Track and Road Crossings

Cubis’ under track crossing (UTX) system has been approved for use with Network Rail. This modern method of building an under track crossing creates a faster, safer construction system which reduces track possession times.

The UTX system utilises MULTIduct™ an innovative, lightweight, structural, multiple duct system. The easy to handle 1m long 4, 6 or 9 way units are lightweight under 20kg and offer a unique ‘one click’ push fit connection that is fast and easy to install. Excavated material can be reused during re-installation reducing time, cost, heavy plant and disposal of excess material.

Seamless Integration

Seamless Integration

The UTX system seamlessly incorporates Cubis’ STAKKAbox™ access chambers with our cable protection system MULTIduct™.

Burial Depths

Burial Depths

Due to its high crush strength MULTIduct™ requires a shallower and narrower burial depth and does not require any concrete or specialist surround. Minimum cover for Network Rail UTXs of 0.6m is easily achievable.

MULTIduct™ has a set of recommended burial depths for various applications. Explore the recommended burial depths for Cubis' 4 Way, 4 Way XL, 6 Way, and 9 Way products for multiple locations here.

*Minimum cover for Network Rail UTXs will be 0.6m for carriageway installations, the minimum required depth of the cover shall comply with the guidance notes from the Utility Regulations.

Application Overview


Reduced installation costs

Future-proofed infrastructure

No additional tooling required

Requires shallower burial depths

B125 access cover options available

High crush strength MULTIduct™ units

No spacers or graded backfill material required

Rapid installation, reducing track possession time

System Components

Cubis' UTX system comprises of the following products:

Access Chambers

Access Chambers

Cubis' range of modular, structural and preformed access chambers offers flexible solutions across many different situations and markets.

MONObox™ POLYvault

AX-S™ Covers

AX-S™ Covers

The Cubis AX-S™ range of access covers provide customers with a complete underground network access system as they are designed and manufactured from a range of materials to complement our chamber ranges.

AX-S™ Concrete Infill
AX-S™ Composite
AX-S™ Recessed

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Lightweight, strong, flexible duct system for constructing UTX/URX, bridge crossing & linear routes. MULTIduct™ is an innovative, lightweight and structural multiple duct cable protection system offering a modern alternative to traditional cable ducting systems.

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