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Fibrelite Composite Manhole and Trench Covers

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Fibrelite and Trenwa Precast Concrete Trench Systems: North America

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Trenwa precast concrete trenches incorporating Fibrelite composite covers.

Long-term protection. Safe fast manual access.

Available across North America.

Fibrelite and Trenwa’s Partnership Trench Systems

Two Industry Leaders

Three Joint Product Lines

“Combining high-performance, lightweight Fibrelite lids with our low-cost precast trench bases delivers a very high-value solution for our customers.They get unparalleled strength and durability at a lower cost than has ever been seen in the market.”
George Schurr, President/COO, Trenwa Inc.

In 2014, Fibrelite and precast concrete trench manufacturer Trenwa formed a strategic partnership in North America to create a joint product offering: Trenwa’s heavy-duty precast concrete road crossing trenches topped with Fibrelite’s traffic rated composite trench covers.

Since then, our partnership has gone from strength to strength, with hundreds of the partnership systems sold and installed in electrical substations, wastewater treatment plants, chemical refineries and many other applications across North America.

In 2017, we developed two new composite covers in partnership with Trenwa, designed to meet demand from their customers to previously installed metal and concrete covers over existing trenches.

Check out our full partnership product range below 

Road crossing trench covers installed at leading US utility provider's substation
Custom moulded composite trench covers engineered to fit Trenwa's precast trench systems
Trenwa's trenches incorporating Fibrelite covers are available in a variety of sizes
Trenwa's precast trenches ready for installation
Our partnership systems provide long-term protection and safe fast manual access
Trenwa’s heavy-duty precast concrete road crossing trenches topped with Fibrelite’s traffic rated composite trench covers

Benefits at a Glance

No scrap value

Chemically inert

Maintenance-free

Custom colours available

Tried tested and accredited

Freeze/thaw cycle impervious

Logos or custom markings can be moulded into the upper surface

Trouble-free lightweight durable monolithic structure which will not delaminate

Non-conductive

Weather resistant

Chip and crack resistant

Anti-slip/anti-static surface

Exceeds service requirements

Heat resistant/excellent insulator against heat

Non-corrosive: unaffected by water, underground gasses and most chemicals

Safe easy-lift manual removal using Fibrelite’s ergonomic lifting handle, eliminating the risk of back injury or crushed fingers

Case Studies

“Combining high-performance, lightweight Fibrelite lids with our low-cost precast trench bases delivers a very high-value solution for our customers.  They get unparalleled strength and durability at a lower cost than has ever been seen in the market.”

George Schurr, President/COO, Trenwa Inc.

Pedestrian Covers for Trenwa’s Multi-Duty Trenches I Suitable for Loads of up to 3,400 lb / 1.5 tonnes

Designed for Trenwa’s Multi-Duty Trench Systems

Custom moulded composite trench covers engineered to fit Trenwa’s existing line of precast multi-duty trench systems. Designed for pedestrian traffic (3,400lb / 1.5-ton load rated)

Suitable for new installations or as an upgrade for previously installed concrete or steel trench covers.

CALL US TO DISCUSS YOUR PROJECT TODAY! + 1 800 422 2525 + 44 (0) 1756 799 773

LPF16-60

Downloads:

Suitable for the following Trenwa products (10″ nominal inside clear):

Part NumberDepthInside Width
BM1012-1201210"
BM1512-1201510"
BM1024-1202410"

LPF26-60

Downloads:

Suitable for the following Trenwa products (20″ nominal inside clear):

Part NumberDepthInside Width
BM2012-1201220"
BM2015-1201520
BM2024-1202420

LPF30-60

Downloads:

Suitable for the following Trenwa products (24″ nominal inside clear):

Part NumberDepthInside Width
BM2412-1201224"
BM2415-1201524"
BM2424-1202424"

LPF36-60

Downloads:

Suitable for the following Trenwa products (30″ nominal inside clear):

Part NumberDepthInside Width
BM3012-1201230"
BM3015-1201530"
BM3024-1202430"

LPF46-30

Downloads:

Suitable for the following Trenwa products (40″ nominal inside clear):

Part NumberDepthInside Width
BM4012-1201240"
BM4015-1201540"
BM4024-1202440"

LPF46-40

Downloads:

Suitable for the following Trenwa products (40″ nominal inside clear):

Part NumberDepthInside Width
BM4012-1201240"
BM4015-1201540"
BM4024-1202440"

LPF54-30

Downloads:

Suitable for the following Trenwa products (48″ nominal inside clear):

Part NumberDepthInside Width
BM4812-1201248"
BM4815-1201548"
BM4824-1202448"

LPF54-40

Downloads:

Suitable for the following Trenwa products (48″ nominal inside clear):

Part NumberDepthInside Width
BM4812-1201248"
BM4815-1201548"
BM4824-1202448"

Medium Duty Covers for Trenwa’s Multi-Duty Trenches I Suitable for Loads of up to Tier 15 / 15,000 lbs / 6.8 tonnes

Designed for Trenwa’s Multi-Duty Trench Systems

Custom moulded composite trench covers engineered to fit Trenwa’s existing line of precast multi-duty trench systems. Designed for occasional vehicle traffic (Tier 15 / 15,000 lbs / 6.8 tonnes)

Suitable for new installations or as an upgrade for previously installed concrete or steel trench covers.

CALL US TO DISCUSS YOUR PROJECT TODAY! + 1 800 422 2525 + 44 (0) 1756 799 773

LMF16-60

Downloads:

Suitable for the following Trenwa products (10″ nominal inside clear):

Part NumberDepthInside Width
BM1012-1201210"
BM1512-1201510"
BM1024-1202410"

LMF26-60

Downloads:

Suitable for the following Trenwa products (20″ nominal inside clear):

Part NumberDepthInside Width
BM2012-1201220"
BM2015-1201520
BM2024-1202420

LMF30-60

Downloads:

Suitable for the following Trenwa products (24″ nominal inside clear):

Part NumberDepthInside Width
BM2412-1201224"
BM2415-1201524"
BM2424-1202424"

LMF36-60

Downloads:

Suitable for the following Trenwa products (30″ nominal inside clear):

Part NumberDepthInside Width
BM4812-1201230"
BM4815-1201530"
BM4824-1202430"

LMF46-30

Downloads:

Cover length 30” end to end
Suitable for the following Trenwa products (40″ nominal inside clear):

Part NumberDepthInside Width
BM4012-1201240"
BM4015-1201540"
BM4024-1202440"

LMF46-40

Downloads:

Cover length 40” end to end
Suitable for the following Trenwa products (40″ nominal inside clear):

Part NumberDepthInside Width
BM4012-1201240"
BM4015-1201540"
BM4024-1202440"

LMF54-30

Downloads:

Suitable for the following Trenwa products (48″ nominal inside clear):

Part NumberDepthInside Width
BM4812-1201248"
BM4815-1201548"
BM4824-1202448"

LMF54-40

Downloads:

Suitable for the following Trenwa products (48″ nominal inside clear):

Part NumberDepthInside Width
BM4812-1201248"
BM4815-1201548"
BM4824-1202448"

HS20 Road Crossing Trench Systems I Suitable for Loads of up to 40,000 lbs / 18 tonnes

Long-Term Protection. Safe Fast Manual Access

Our first partnership product: Trenwa’s heavy-duty precast concrete road crossing trenches topped with Fibrelite’s traffic rated composite trench covers. Together they provide long-term protection for underground utilities running across road crossings while enabling safe and fast manual access for monitoring and maintenance.

  • Depths – 12″, 16″, 24″- nominal inside.
  • Widths – 10″, 20″, 24″, 30″, 40″, 48″ – nominal inside.
  • Open bottom (standard) – Solid bottom (special order)
  • Pipe, cable supports, unistrut, weld plates etc. can be embedded.

CALL US TO DISCUSS YOUR PROJECT TODAY! + 1 800 422 2525 + 44 (0) 1756 799 773

10 Inches Inside Width

BHF1012-120

Depth: 12″

BHF1016-120

Depth: 16″

BHF1024-120

Depth: 24″

20 Inches Inside Width

BHF2012-120

Depth: 12″

BHF2016-120

Depth: 16″

BHF2024-120

Depth: 24″

24 Inches Inside Width

BHF2412-120

Depth: 12″

BHF2416-120

Depth: 16″

BHF2424-120

Depth: 24″

30 Inches Inside Width

BHF3012-120

Depth: 12″

BHF3016-120

Depth: 16″

BHF3024-120

Depth: 24″

40 Inches Inside Width

BHF4012-120

Depth: 12″

BHF4016-120

Depth: 16″

BHF4024-120

Depth: 24″

48 Inches Inside Width

BHF4812-120

Depth: 12″

BHF4816-120

Depth: 16″

BHF4824-120

Depth: 24″

Concrete and Composites

A Powerful Partnership