Are Jersey Barrier Blocks and K-Rails The Same Thing

Are Jersey Barrier Blocks and K-Rails The Same Thing

With many barrier options available, it can sometimes be challenging to find the right option for you. Jersey Barrier blocks are no exception.

In this blog, we will answer the question “Are Jersey Barrier Blocks and K-Rails the same thing?”

At PPC Concrete Products, we are here to provide solutions for your construction needs,

from the person working their own part-time project, to commercial clients, and everyone in-between.

Monthly construction output had risen an estimated 1.6% value in June 2023, and we would like to think our accessible concrete products had a small part to play by giving our clients easy access to reliable and easy-to-use construction solutions.

Why are barrier blocks needed?

Why are barrier blocks needed?

Whether it is a Jersey Barrier Block, or a K-Rail, it can be argued that barrier blocks are critical to maintaining safety, and helping to create order in certain places. Barrier blocks can be used for:

  • Safety Measures: Jersey barriers are crucial for safety in various situations. They separate traffic lanes, shield construction workers from passing vehicles, and prevent debris from entering roadways.
  • Crowd Control: Jersey barriers can help to manage large crowds at events by channelling their movement, defining perimeters, and keeping them separate from vehicles.
  • Perimeter Security: These barriers can be used to secure perimeters around buildings, sensitive areas, or construction zones, restricting unauthorized access.

What happens if I don’t use a barrier block?

  • Safety Risks: The absence of Jersey barriers could lead to accidents. Vehicles might collide head-on in the absence of lane separators. Construction workers might be struck by passing vehicles.

Debris from construction zones could fly onto roadways or pavements, endangering drivers and pedestrians alike.

  • Uncontrolled Movement: Without barriers, movement, and access become unrestricted. This could lead to chaos or disruption in situations where controlled movement is necessary, like managing crowds or securing sensitive areas. For example, around construction sites, or at events with a heavy influx of attendees.
  • Loss of Containment: If barriers are used to contain something, like water flow in flood control, their absence could lead to unintended consequences, like flooding in unwanted areas.

Are Jersey Barrier Blocks and K-Rails the same thing?

Are Jersey Barrier Blocks and K-Rails the same thing?

Essentially, yes. Jersey Barrier Blocks and K-Rails are more or less the same. The difference in names may be due to the regional differences. That being said, depending on the provider of the blocks, there may be slight differences in the block. This can include the size or shape, or aggregates used in the manufacturing process.

“Jersey barrier” is the original term based on the birthplace of this barrier design. They were invented in the U.S. state of New Jersey back in 1955, designed to improve safety on dangerous roads. Interestingly, the first ones were quite short, only reaching 18 inches (ca. 46 cm)!

Do Jersey Barrier Blocks interlock?

Yes. At PPC, our Jersey Barriers have the capacity to interlock with each other, this is achieved by aligning the studs and recesses correctly side by side. This interlocking capability increases the reliability of the barrier, as the collective weight of the barriers results in a wider centre of gravity, making them harder to topple, and to move individually.

As with the movement or placement of Jersey Barriers must be done with heavy lifting equipment, so must the interlocking process. What’s more is that Jersey Barrier Blocks do not require any binding materials in order to create a strong and lasting connection.

As a result of not requiring any binding materials, you can save money that would otherwise have been spent in purchasing the binding materials, and the labour required to bind them with the materials.

Can you stack a Jersey Barrier?

No. Jersey Barriers can not be stacked due to their shape, as they are wide at the bottom, and become narrow towards the top. This creates an incredibly uneven surface that would not only require extreme balance to achieve, but immense luck for the stacked barrier to remain still without falling.

If you are looking for a concrete product that has the capacity to be stacked, you may want to read on to discover our Interlocking Concrete Block option.

Are Interlocking Concrete Blocks the same as Jersey Barriers?

Are Interlocking Concrete Blocks the same as Jersey Barriers?

No, an Interlocking Concrete Block is not the same as a Jersey Barrier. The difference is mainly in the sizes available, and general shape. Interlocking Concrete Blocks do not have the wide bottom frame and almost pointed top.

However, they do both share an interlocking feature, albeit in different ways. Jersey Barrier blocks connect side-by side, whereas Interlocking Concrete Blocks connect via studs and recesses on the top and bottom of the blocks, respectively.

Regarding the function, in some instances, an Interlocking Concrete Block can be used in place of a Jersey Barrier. However, we strongly recommend receiving professional guidance before committing to this option.

Below are some of the uses that an Interlocking Concrete Block can facilitate:

  • Material Storage bays
  • Blast walls
  • Salt stores
  • Crash protection
  • Push walls
  • Security barriers
  • Segregation bays, i.e. recycling centres
  • Retaining walls
  • Industrial buildings
  • Fire breaks
  • Counterweights
  • Roadblocks

How much are Interlocking Concrete Blocks and Jersey Barriers?

The price of each of these concrete options depends on a few factors, which can include:

  • The amount required
  • The reason for usage (Some situations may make them prone to damage).
  • The proposed period of usage, or if they will be purchased outright.
  • The size (For Interlocking Concrete Blocks).

For an accurate quote, it is advisable to have all the relevant information regarding the reason you need the concrete products in question. This information allows us to provide relevant guidance and, in turn, offer a quote that is fair and in line with your specific requirements.

Can I keep Jersey Barriers outside in any weather?

Yes, you absolutely can keep Jersey Barriers outside in any weather. They are designed to withstand harsh outdoor conditions. Here’s why:

  • Material Durability: Jersey barriers, typically made from concrete, are built to be tough. Concrete Jersey barriers are extremely resistant to rain, snow, sun, and wind.
  • Design for Resilience: Their shape, with a wide base and slanted face, helps them shed water and snow effectively, preventing them from accumulating and causing weight-related issues.

However, in some very rare instances, you should be aware of:

  • Extreme Weather Events: While Jersey barriers hold up well in most weather, extreme weather events like hurricanes or tornadoes might cause them to move or topple if not properly secured. In such cases, it’s best to follow local advisories and secure them if possible.
  • Temperature Extremes: Concrete Jersey barriers perform well in most temperature ranges. However, extreme cold might cause cracking in some situations, though this is uncommon.

Overall, Jersey barriers are built to endure the elements and can be safely left outside year-round. However, it’s always a good practice to be aware of exceptionally severe weather conditions and take appropriate precautions if necessary.

Buy Jersey Barrier Blocks today

Buy Jersey Barrier Blocks today

As an established supplier all over the UK, PPC Concrete Products is always happy to help, which is why we encourage you to get in touch with any questions you may have or have a look at our FAQ.

In this blog, we hope to have answered the question “Are Jersey Barrier Blocks and K-Rails the same thing?” Whilst also providing additional information including construction solutions that we offer.

Take a read of our case studies to truly understand how we have provided solutions for business in the past with the use of our interlocking concrete blocks, and ultimately, how we can help you today.

Read our blog page for more insights into our passion, construction.


The Old Gasworks,

Higginshaw Lane,




Opening Hours:

Monday to Friday – 8 AM until 4 PM

Tel: 01706 655245


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