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Last updateThu, 14 Oct 2021 10am

Essential things to know about precast concrete dividers

Most people pay little attention to the partitions that divide traffic on highways. For many of them, they just look like any concrete divider.

They may look simple, but their design is sophisticated. These barriers are well-tested and perfected. In case of a crash, the dividers ensure driver safety on both sides of the road. These innocuous dividers have a unique name – Jersey barriers.

The name Jersey barrier stuck because it was developed and first used on the roads in New Jersey in the United States. Now, they are also common in the UK. Recently, these concrete barriers have been replacing the steel central reservation barriers on major UK highways to increase safety. The existing steel barriers are at the end of their 20-year life. 

Types of concrete barrier designs

You can find different designs of concrete barriers. They are primarily designed for stability, security, and safety. For optimised traffic safety or long-term deployment, concrete barriers offer an effective solution for creating immovable barriers to delineate road space, secure land and property, and prevent access.

Concrete barriers are precast, following standard dimensions. This allows for convenient installation and a long lifespan. The most common types are as follows.

  • Concrete Jersey walls. These are most commonly known as Jersey barriers. A Jersey barrier is a modular concrete barrier often used to separate traffic lanes. The Jersey barrier has an extra-wide base that increases its stability. Its design helps in minimising damage to a vehicle in case of incidental contact. It also prevents the vehicle from crossing over to the opposite lane when there is a head-on collision. The design helps the vehicle slide along the row of Jersey barriers instead of flipping over or breaching the barrier during a crash. It has grooves compatible with forklifts, making the barrier easy to install and deploy.
  • Concrete barriers in 1.5m, 2.5m, and 3m lengths. They are ram-resistant barriers. The shortest barrier is effective as a security barrier for smaller areas. It can also be used as supporting weight for marquees and scaffolding. The longer ones are ideal to install across runs of fencing or gateway access points to prevent access by vandalism or ramming.
  • Concrete Legato brick/blocks. These barriers have interlocking design and lifting anchors cast into them. They are available in different weights and sizes. Legato blocks have the same longevity and resilience as concrete blocks created on-site. But the precast blocks are compatible with mesh and hoarding panels.
  • Temporary vertical concrete barriers. They are effective in roadside safety and risk management. The barriers incorporate a visible, pre-cast arrow, which helps to protect and direct road users.

Answering the need for security and safety

Jersey barriers are one of the different concrete barriers that construction companies can use for their projects. Whether you are handling road repair or construction or undertaking large-scale construction projects, Jersey barriers will help direct traffic on the construction site, protect workers from high-risk areas, and keep heavy machinery away from construction workers.

Depending on what purpose you need concrete barriers for, you can rent or purchase 2.5m concrete Jersey barriers from reputable companies offering precast concrete products. 

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