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Composite Manhole Covers

Why Composite Manhole Covers Are a Smart Choice

The Composite Manhole is manufactured with a lightweight composite cover that delivers high strength while weighing less than 25% of steel. Built from environmentally safe composite materials, it is not permeable and is not weakened by exposure to hydrocarbons. The material is also non-conductive, meaning it does not carry electrical currents or retain electrical charges, making it a dependable solution for utility and infrastructure applications.

Composite manhole covers are widely used in drainage systems, stormwater access points, utility chambers, industrial facilities, electrical enclosures, and telecom networks. Their lightweight construction helps improve handling and installation efficiency, while their corrosion-resistant performance supports long-term use in wet, chemical, and demanding outdoor environments.

Compared with traditional metal covers, composite manhole covers offer a practical balance of strength, safety, and reduced maintenance. They are a strong choice for projects that require durable access covers with non-conductive properties, hydrocarbon resistance, and reliable performance in modern municipal, commercial, and industrial settings.

KEY BENEFITS

  • Lightweight composite construction for easier handling.
  • High strength with less than 25% of the weight of steel.
  • Non-conductive material for improved electrical safety.
  • Resistant to hydrocarbons, moisture, and harsh environments.
  • Suitable for drainage, utility, telecom, and industrial applications.
  • Designed for long service life and lower maintenance needs.
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13638x10 Composite Manhole

38” x 10” Composite Manhole
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13638x10WT Rain Tight Composite Manhole

38” x 10” Rain Tight Composite Manhole
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13642x10 Composite Manhole

42” x 10” Composite Manhole
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13642X10WT Rain Tight Composite Manhole

42” X 10” Rain Tight Composite Manhole
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318L-3800AMC Lightweight Manhole 38” X 10” Non-bolted

Morrison –Cover Diameter: 38-7/8”, Overall Height: 12”
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318L-3900AMC Lightweight Manhole 38” X 18” Non-bolted

Morrison – Cover Diameter: 38-7/8”, Overall Height: 20”
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318L-4400AMC Lightweight Manhole 44” X 10” Non-bolted

Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
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318L-4500AMC Lightweight Manhole 44” X 18” Non-bolted

Morrison –Cover Diameter: 44/5/8”, Overall Height: 20”
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418L-3800AMC Limited Access Lightweight Manhole 38” X 10”

Morrison – Cover Diameter: 38-7/8”, Overall Height: 12”
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418L-4400AMC Limited Access Lightweight Manhole 44” X 10”

Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
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418L-4500AMC Limited Access Lightweight Manhole 44” X 18”

Morrison – Cover Diameter: 44-7/8”, Overall Height: 20”
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418LC-3800AMC Limited Access Lightweight Manhole 38” X 10”

Morrison – Cover Diameter: 38-7/8”, Overall Height: 12”
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418LC-3900AMC Limited Access Lightweight Manhole 38” X 18”

Morrison – Cover Diameter: 38-7/8”, Overall Height: 20”
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418LC-4400AMC Limited Access Lightweight Manhole 44” X 10”

Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
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418LC-4500AMC Limited Access Lightweight Manhole 44” X 18”

Morrison – Cover Diameter: 44-7/8”, Overall Height: 20”
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