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Fibrelite Composite Manhole and Trench Covers

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Europe, Middle East & Africa (EMEA)

US and Canada

Latin America

Asia Pacific

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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 colors colours available

Tried tested and accredited

Freeze/thaw cycle impervious

Logos or custom markings can be molded 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 gases 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

Utility Provider, USA

This leading US utility company chose Trenwa and Fibrelite’s HS20 road crossing trenches for their new electrical substation

Substation Rebuild, USA

Fibrelite’s HS-20 load rated composite trench covers have been selected by one of the nation’s largest metropolitan electrical utilities for a high-profile rebuild of a 345 kV bulk power substation

“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 Load Rated Covers for Trenwa’s Multi-Duty Trenches | Suitable for Loads of up to 3,400 lbs

Designed for Trenwa’s Multi-Duty Trench Systems

Custom molded moulded composite trench covers engineered to fit Trenwa’s existing line of precast multi-duty trench systems. Designed for pedestrian traffic only up to 3,400 lbs.

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

Fibrelite’s line of LPF trench covers and Trenwa’s precast concrete trench systems are sold exclusively by Trenwa (www.trenwa.com/trench-products/).

CALL US TO DISCUSS YOUR PROJECT TODAY! (919) 209-2404 + 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"

Tier 15 Load Rated Covers for Trenwa’s Multi-Duty Trenches I Suitable for Wheel Loads of up to 15,000 lbs 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 molded moulded composite trench covers engineered to fit Trenwa’s existing line of precast multi-duty trench systems. Designed for occasional light vehicle traffic as per Tier 15 load ratings (15,000 lbs.).

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

Fibrelite’s line of LMF trench covers and Trenwa’s precast concrete trench systems are sold exclusively by Trenwa (www.trenwa.com/trench-products/).

CALL US TO DISCUSS YOUR PROJECT TODAY! (919) 209-2404 + 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 Load Rated Covers for Trenwa’s Road Crossing Trench Systems I Suitable for Wheel Loads of up to 40,000 lbs HS20 Road Crossing Trench Systems I Suitable for Loads of up to 40,000 lbs / 18 tonnes

Designed for Trenwa’s Road Crossing Trench Systems Long-Term Protection. Safe Fast Manual Access

Custom molded composite trench covers engineered to fit Trenwa’s existing line of precast road crossing trench systems. Designed for frequent vehicle traffic as per HS20 load ratings (40,000 lbs.).

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

Fibrelite’s line of LHF trench covers and Trenwa’s precast concrete trench systems are sold exclusively by Trenwa (www.trenwa.com/trench-products/). 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! (919) 209-2404 + 44 (0) 1756 799 773

LHF16-60

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

Part NumberDepthInside Width
BHF1012-1201210"
BHF1016-1201610"
BHF1024-1202410"

LHF26-60

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

Part NumberDepthInside Width
BHF2012-1201220"
BHF2016-1201620"
BHF2024-1202420"

LHF30-60

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

Part NumberDepthInside Width
BHF2412-1201224"
BHF2416-1201624"
BHF2424-1202424"

LHF36-30 and LHF36-60

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

Part NumberDepthInside Width
BHF3012-1201230"
BHF3016-1201630"
BHF3024-1202430"

LHF46-20 and LHF46-30

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

Part NumberDepthInside Width
BHF4012-1201240"
BHF4016-1201640"
BHF4024-1202440"

LHF54-20 and LHF54-30

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

Part NumberDepthInside Width
BHF4812-1201248"
BHF4816-1201648"
BHF4824-1202448"

Concrete and Composites

A Powerful Partnership