Highway Cable Barrier

NCHRP 350 TL-4 (4 Cable)

The Gibraltar TL-4 (4 Cable) Cable Barrier consists of a 4-strand, high tension cable barrier providing a cost effective solution designed to contain and redirect errant vehicles from hazards.  

Special Features: Gibraltar Test Level 4 (4 Cable)

  • FHWA Acceptance
  • Tested NCHRP Report 350
  • 4:1 Slope Application
  • Up To 30ft Post Spacing 
  • Driven or Socketed Posts
  • W-Beam Transition (Option)
  • Driven Anchor Option

The TL-4 (4 Cable) is designed to contain vehicle types from smaller cars up to 18,000 lb cargo trucks.

Full scale vehicle crash/impact testing has been completed to evaluate the safety performance of our TL-4 (4 Cable) longitudinal cable barrier.  All testing procedures were conducted as prescribed by the NCHRP Report 350 and resulted in acceptance from the FHWA for the Gibraltar TL-4 (4 Cable) for use as a highway safety barrier.  Through design and testing Gibraltar has received acceptance from the FHWA for various installation options and system features for the TL-4 (4 Cable).  These features allow Gibraltar to provide the customer with the most cost effective solution for their specific need.  

 

Additional Resources and Media

Order Form Cover Sheet

Cable Barrier Repair Parts - Order Form Cover Sheet (Only). This Cover Sheet is included in the other Order Form downloads. However, if you need just the Cover Sheet you can download this to use. This form is a Fillable PDF using Adobe Acrobat or other compatible PDF reader.

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Order Form(s) - TL-4-4 Repair Parts [4 Cable System]

TL-4-4 Cable Barrier Repair Parts Order Form(s) [4 Cable System] *Contains All TL-4-4 System Types, (ie.: 3/4" Fittings, 1" Fittings, 1" Swaged Fittings, 1" Closed Body Fittings)

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Letter B-137A-1 -- Cable Design

Federal Highway Administration (FHWA) Acceptance Letter B-137A-1 - 4 Cable Design

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Letter CC-92 Terminal

Federal Highway Administration (FHWA) Acceptance Letter CC-92 Terminal

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Letter HSSD/B-137D - 4 Cable Anchor

Federal Highway Administration (FHWA) Acceptance Letter HSSD/B-137D - 4 Cable Anchor

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Letter CC92A Driven Anchor System

Federal Highway Administration (FHWA) Acceptance Letter CC92A Driven Anchor System

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Letter B-137A Length of Need TL-4

Federal Highway Administration (FHWA) Acceptance Letter B-137A Length of Need TL-4

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Letter B-137B Variable Post Spacing

Federal Highway Administration (FHWA) Acceptance Letter B-137B Variable Post Spacing

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Letter HSA-10 Socket Design Options

Federal Highway Administration (FHWA) Acceptance Letter HSA-10 Socket Design Options

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Letter B-147A Transition to W-Beam

Federal Highway Administration (FHWA) Acceptance Letter B-147A Transition to W-Beam

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Letter B-137C 4:1 Slope

Federal Highway Administration (FHWA) Acceptance Letter B-137C 4:1 Slope

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TL-4-4 System Drawing - Standard (4 Cable)

TL-4-4 System Drawing - Standard (4 Cable)

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TL-4-4 System Drawing - Metric (4 Cable)

TL-4-4 System Drawing - Metric (4 Cable)

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TL-4-4 Transition to W-Beam - Metric (4 Cable)

TL-4-4 Transition to W-Beam - Metric (4 Cable)

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TL-4-4 Transition to W-Beam - Standard (4 Cable)

TL-4-4 Transition to W-Beam - Standard (4 Cable)

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