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BRIDGE RAIL
MDS® TL4

A 64 lbs per foot modular steel barrier system 
for temporary or permanent bridge
& work-zone installations

MDS BARRIERS

Minimum Deflection Systems

TL4 MDS® BARRIERS
MDS® Barriers are a high performance aesthetically engineered bridge rail System designed for both new and existing bridge rehabilitation projects. Modular design facilitates assembly for permanent installations and can be easily installed and relocated for temporary installations. Developed specifically for bridges due to its light weight and high impact TL-4 protection.

  • Eliminates concrete barrier bridge dead weight by 90%
  • Reduces the risk of bridge collapse during short- and long-term projects
  • Provides the highest MDS® TL4 crash impact rating in a portable barrier

PERMANENT AND TEMPORARY
MDS® TL4 BARRIERS can be installed on structures as permanent or temporary barrier when mounted back to back or used as bridge rail especially during construction and tim

INSTALLING MDS® TL4 BARRIERS
MDS® BARRIERS installation is a straightforward 4 step process

  1. Install anchor rod into 5″ into bridge deck
  2. Place and attach barriers
  3. Tighten bolts
  4. Mount upper tube rail
STEP 1

Install Anchor Rods

STEP 2

Place & Attach

STEP 3

Tighten Bolts

STEP 4

Mount Top Rail

SAFE & SECURE
With the ever increasing bridge rehabilitation projects emerging, the need for a light weight, high performance, easy to install TL4 and TL5 barrier for work zone safety has been a challenge. MDS® BARRIERS have been developed to provide the highest level of protection allowing job sites to start and end faster. The design simplicity of SRS anchoring system has no exposed plates or bolts that extend out from the barrier eliminating snagging especially in snow removing environments.

Crash Attenuatrors
MDS® BARRIERS transition have smooth intergration into crash attenuators providing non snag openings, 

Quadguard M10 with MDS TL4

FEATURES

  • Highest containment in a portable TL4 system
  • Modular 20ft, 10ft and custom lengths
  • Lightweight only 64 lbs per foot
  • Progressive SRS technology
  • Variable Length Barriers for expansion joints
  • Eliminates 90% of concrete barrier dead weight
  • 25+ year life cycle
  • Adapts to all industry standard end treatments
  • Easily remove and replace damaged sections

APPLICATIONS

  • Bridges
  • Bicycle and Pedestrian Lanes over bridges
  • Work zones
  • Highway Medians
  • Bridge Rehabilitation
  • permanent bridge barrier

BENEFITS

  • Modular assembly for progressive installation
  • Pre-designed for sound and vision “See through” walls
  • Variety of transitions, terminations and crash cushions available.

NOISE & VISUAL PROTECTION
MDS® BARRIERS are pre-designed to integrate noise-protection sound barriers and site walls within a single barrier system providing considerable savings in terms of occupied space, supporting substructures and overall cost. The special backward positioning of the noise-protection barrier requires less lateral space on the bridge deck and also makes the disposal of snow easier when exposed to freezing climates

MDS TL4 drawing sound walls

PROVEN MDS® TL4 PERFORMANCE
MDS® Barriers have been tested to meet the highest performance standards in the world, passing both the American Standard NCHRP-350 Report 350 and MASH Test Level 4 including European Standard EN1317 Test Level H2.

TRANSITIONS
MDS® BARRIERS transition into all guardrails, concrete barriers and end treatments for seamless integration

MDS TL4 W-beam Transition

Standard Barrier Drawings

  • MDS TL4 Barrier design drawing
  • MDS TL4 Installation and anchor spacing
  • MDS TL4 Installation anchor depth
  • MDS TL4 Variable Length Barrier

Transitions Guardrail and Concrete Barrier

  • MDS TL4 Thrie Beam transition
  • MDS TL4 W-Beam transition
  • MDS TL4 Concrete barrier transition

Crash Attenuators

  • MDS TL4 Quadguard transition single row
  • MDS TL4 Quadguard transition double row

Sound Walls

  • MDS TL4 10 ft Sound wall
  • MDS TL4 13 ft Sound wall

Barrier Sign attachments

  • MDS TL4 barrier sign attachment options

Truck Loading

  • MDS TL4 barrier truck loading and lifting