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Roads & Municipal Series

Composite Covers for
Highways & Urban Infrastructure

EN124-certified composite manhole covers for main carriageways, municipal roads, drainage infrastructure, and utility access. Multiple load classes. Anti-theft by design. Lightweight for easier installation and maintenance.

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Product Range
Roads & Municipal Cover Series

Seven models covering D400 heavy-duty road applications and B125 light-duty access. Select a model to view details.

600mm D400Round Cover

Standard-diameter round composite cover for municipal roads, utility access, and urban infrastructure. D400-rated for full carriageway installation. Widely used by water authorities, telecoms, and power utilities.

Ø600
Clear Opening
D400
Load Class
SMC
Material
  • EN124 D400 certified — 40-tonne load rating for main carriageways and HGV-trafficked roads
  • Anti-theft by design — Zero scrap metal value eliminates theft risk on unattended road assets
  • Anti-slip moulded surface — Wet road rated, safe for pedestrian and vehicle traffic
  • Lightweight vs. iron — 50–60% lighter than ductile iron, reducing installation and maintenance labour
  • Multi-utility application — Suitable for water, telecom, power, gas, and drainage access
600×600mm D400Square Cover

Square-format D400 composite cover for highways, car parks, and municipal utility access. Flush installation with road surface. Compatible with standard 600×600 concrete frames widely used in road construction.

600×600
Dimensions (mm)
D400
Load Class
SMC
Material
  • EN124 D400 certified — Full heavy vehicle load rating for road and highway installation
  • Square format — Fits standard 600×600 cast frames widely specified in municipal road contracts
  • Corrosion-free — No rust, no pitting — permanent structural integrity in aggressive urban environments
  • OEM logo available — Can be moulded with utility company logo or custom surface pattern
  • Anti-theft — SMC composite has no scrap metal value, eliminating theft from road assets
600×600mm D400Grate Cover

Open-grating composite cover for surface water drainage, road gullies, and park or landscape drainage channels. D400 load class allows installation in trafficked road and car park environments with full water flow-through.

600×600
Dimensions (mm)
D400
Load Class
SMC
Material
  • Open grating design — Allows surface water to drain freely while supporting full vehicle loads
  • EN124 D400 certified — Suitable for main roads, commercial areas, and car parks
  • Corrosion-resistant — No rust or degradation in wet environments; permanent service life in drainage applications
  • Anti-slip bars — Moulded grating profile provides traction for pedestrians and cyclists
  • Lightweight handling — Significantly lighter than cast iron grating; faster installation and maintenance access
760×760mm D400Square Cover

Large-format square composite cover for major municipal utility chambers, road junctions, and high-traffic urban access points. Larger clear opening than the 600×600 series for access to wider underground infrastructure.

760×760
Dimensions (mm)
D400
Load Class
SMC
Material
  • EN124 D400 certified — Heavy vehicle load rating for arterial roads and busy urban junctions
  • Large clear opening — Wider access for complex underground chambers, cable trays, and multi-service ducts
  • Flush surface finish — Sits level with road surface; no trip hazard, no noise under traffic
  • Anti-theft composite — No scrap value; eliminates theft risk from high-visibility road locations
  • Custom logo option — Municipal authority or utility company branding available on request
750mm D400Round Cover

Large-diameter round composite cover for municipal sewage, water mains, and industrial utility access on main roads. Widely used by water authorities and power utilities requiring a larger clear opening than the 600mm series.

Ø750
Clear Opening
D400
Load Class
SMC
Material
  • EN124 D400 certified — 40-tonne load rating for main roads, highways, and industrial access routes
  • Large clear opening — 750mm diameter provides safe man-entry access for sewer maintenance and inspection
  • Corrosion-free SMC — Resists sewage gases, chemicals, and moisture; no maintenance painting required
  • Anti-theft composite — No scrap value; proven solution for high-risk urban and industrial locations
  • Lift-assist options — Available with single or dual lifting handles for safe manual handling
750×600mm D400Rectangular Cover

Rectangular composite cover for elongated utility chambers, cable duct access, and telecommunications infrastructure in commercial, industrial, and residential road environments. D400-rated for full road installation.

750×600
Dimensions (mm)
D400
Load Class
SMC
Material
  • Rectangular format — Ideal for elongated underground ducts, cable trays, and non-square utility chambers
  • EN124 D400 certified — Heavy vehicle load rating for commercial and industrial road applications
  • Multi-sector application — Used across telecom, power, water, and municipal utility networks
  • Corrosion and chemical resistant — Permanent service life without maintenance painting or anti-corrosion treatment
  • Customisable surface — Logo, text, or pattern moulding available for utility identification
300×300mm B125Square Cover

Compact square composite cover for light-duty inspection access in parks, gardens, pedestrian areas, commercial zones, and telecom infrastructure. B125-rated for footways and areas without heavy vehicle access.

300×300
Dimensions (mm)
B125
Load Class
SMC
Material
  • EN124 B125 certified — 12.5-tonne load rating for footways, pedestrian zones, parks, and light-traffic areas
  • Compact footprint — 300×300mm format for small inspection pits, drain access, and telecom junction points
  • Lightweight and easy to handle — One-person lift; no equipment required for routine inspection access
  • Landscaping compatible — Suitable for parks, gardens, and commercial outdoor areas requiring discreet access covers
  • Corrosion-free composite — No rust in damp or wet ground conditions; permanent finish without maintenance
Quick Reference
All Models — Side by Side

A full comparison of all seven road & municipal cover models. For detailed specifications and test reports, request a quote.

Model Shape Clear Opening Size Load Class Watertight Inspection Port Lock Option
600mm Round Ø600mm EN124 D400/C250/B125 IPX7 NO YES
600×600mm Square 600×600mm EN124 D400/C250/B125 IPX7 NO YES
600×600mm Grating Grating 600×600mm EN124 D400 NO YES
760×760mm Square 760×760mm EN124 D400 IPX7 NO YES
750mm Round Ø750mm EN124 D400/C250/B125 IPX7 NO YES
750×600mm Square 750×600mm EN124 D400/C250/B125 IPX7 NO YES
300×300mm Square 300×300mm EN124 B125 IPX7 NO YES
Why M&C for Roads & Municipal
What We Bring to
Highway & Municipal Projects

The same manufacturing capability and certification depth that makes us the choice for major oil companies applies to highway and municipal infrastructure projects.

01
Anti-Theft by Material

Metal cover theft costs road authorities millions annually in emergency repairs and traffic management. SMC composite has zero scrap metal value — it is simply not worth stealing. This eliminates an entire category of asset management risk without additional security measures.

02
Multi-Standard Certification

A single product range certified to EN124 (Europe), AS3996 (Australia/NZ), and AASHTO (North America). For international EPC contractors and programme buyers supplying across multiple markets, this eliminates re-specification and re-testing costs.

03
In-House SMC Manufacturing

We produce our own SMC compound rather than buying from third parties. This gives us direct control over material quality — batch-to-batch consistency that outsourced manufacturing cannot guarantee. Combined with ISO 9001 and SGS testing, every cover meets the same specification.

04
Lightweight — 50–60% Lighter Than Iron

A standard D400 ductile iron cover weighs 80–110 kg. Our composite equivalent: 32–40 kg. This directly reduces installation cost, maintenance labour, and manual handling injury risk. For large highway or utility replacement programmes, the saving in labour hours across hundreds of covers is significant.

EN124D400 · C250 · B125
AS3996Australian / NZ Standard
AASHTONorth American Standard
ISO 9001Quality Management
SGS3rd Party Test Reports
Common Questions
Road & Municipal FAQ

Load class depends on where the cover will be installed. EN124 defines six classes: A15 for pedestrian areas and gardens; B125 for footpaths and car parks; C250 for kerb lanes and slow-moving traffic; D400 for carriageways and roads open to all vehicles; E600 for high-load zones such as docks and freight yards; F900 for exceptional loads. If you're unsure, share the application and we'll advise the correct class.

Composite covers offer several practical advantages on public roads: they have no scrap metal value, which eliminates theft — a persistent and costly problem with iron covers. They're non-sparking, non-conductive, and will not corrode. For local authorities and contractors, this typically means lower total cost over the asset life despite a higher unit price.

Yes. Our D400-rated covers are independently tested to EN124 and certified to carry 40-tonne axle loads — the same standard applied to ductile iron D400 covers. Our E600 range is certified for 60-tonne loads. We can provide third-party test reports (SGS or equivalent) on request.

Theft of manhole covers is a serious safety and cost issue for local authorities — iron covers are routinely stolen for scrap value. Our composite covers have no scrap metal value, which removes the primary incentive for theft. For applications requiring additional security, we also offer covers with integrated locking mechanisms. Specify at enquiry stage if locking is required and we'll confirm the available options for your load class.

Standard documentation includes EN124 test reports, ISO 9001 certificate, Declaration of Conformity, and SGS third-party test certificates.

Our SMC compound is manufactured in-house for each order, so standard lead time is 25–30 days from order confirmation. Actual timing depends on order quantity. If you have an urgent requirement or a fixed site delivery date, contact us early — we will do our best to accommodate.

Get in Touch
Enquire About Road & Municipal Covers

Send us your project requirements — load class, size, standard, quantity, and application — and we will respond with a proposal within 24 hours.

Response within 24 hours
✓ EN124 · AS3996 · AASHTO available
✓ Multiple load classes: B125 / C250 / D400
✓ OEM branding and custom sizes available
✓ Test reports and certification docs on request

Road & Municipal Enquiry
Tell us your project requirements and we'll respond with a proposal and full specs within 24 hours.
✓ Composite (FRP/SMC) Only — We do not manufacture cast iron or ductile iron covers.

We respond within 24 hours. Your information is never shared with third parties.

Enquiry Received

Thank you. We'll respond within 24 hours with a proposal and full specifications.

Roads & Municipal Covers — EN124 · AS3996 · AASHTO · Multiple Load Classes

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