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ENCAT Collapsible bollard for culvert debris control

Collapsible bollard for culvert debris control
See the feedback from a council who installed them.

Australian custom made bollard manufacturer

ENCAT RMS specification compliant products for sale in Australia


ENCAT Australian made pedestrian fencing and civil products available direct from the factory


ENCAT Pedestrian fencing and civil products for sale


ENCAT Modular pedestrian fencing panels


This steel bollard that ENCAT manufactures has a unique collapsible design and is an industry first. This type of bollard may be used in storm water culverts or storm water conveyance channels that have debris control structures in place. In order to prevent debris from reducing the flow of water, they can be situated near the entrance to suit the width and height of the existing site conditions.


Adding our bollard to an existing debris control structure can improve it’s effectiveness. During times when debris impact loads or water pressure loads exceed the shear pin strength of the bollard, the bollard will lay flat, preventing irreparable damage to the bollard. You can replace the shear pin once it is safe to do so and then the bollard can be stood upright to be ready for the next storm water event. This saves councils resources, time and money on maintenance or replacement costs.


We designed this type of bollard because flooding that is caused by blocked gully pits is reasonably common, but when pipes or culverts block, this is completely different. Debris blockage at inlets to pipes, culverts or even within channels can massively reduce their conveyance capacity, sending water flows to other locations like nearby houses. Once the minor drainage systems are not effective in an area, the water will build up and find a new way to continue on its natural path towards the sea.


In some cases, the larger systems that are in place to manage these overland flow routes may get blocked and create local flooding incidents. The common reasons for this include;

  • weak and dead trees
  • illegal dumping of rubbish, cars, building materials
  • large levels of organic growth within creeks and channels
  • sediment build up to the top of bank level


The potential debris that is present can be washed down the line during larger velocity flood events. This can block inlet structures like culverts, the bollard can help to prevent this from occurring & enable the water to flow as required.

Australian made steel bollard manufacturer

ENCAT is an Australian manufacturer of products such as bollards that are  used in public spaces or civil construction projects. Everything we produce is compliant with Australian laws and requirements.

  • 100% Australian Made.
  • Certified Welding to AS1554
  • Hot Dip Galvanising to AS1214

Product specifications

  • Material:  Steel

  • Colour:    Varies depending on material chosen

  • Weight:   Varies based on size manufactured

  • Specifications:   Custom made to suit your requirements

Additional information about ENCAT's Collapsible bollard for culvert debris control

ENCAT is Australia’s largest manufacturer and supplier of products used for civil applications in public spaces. Since 1989 we have been designing and manufacturing products used by councils, national parks, schools, universities and other locations. While we specialise in pedestrian fencing we have the skills, tools and equipment to design products to solve many different civil engineering requirements or applications.

Our reputation is second to none with our products used in locations like Venice Beach in Los Angeles, The Blue Mountains in New South Wales and even local national parks like Minamurra Rainforest.

  • Custom design and engineering.

  • Local manufacturing and fabrication.

  • Experience working in difficult to access public spaces.

  • In-house expertise, tooling and equipment.
We can take on any type of civil construction design brief and our expert in-house team can design solutions for you. 
For an obligation free discussion, contact our team or send us a quote request

See ENCAT's range of public use products for sale in Australia

Gate for limiting public road access to fire trails
Surfer Joe outdoor public driveway driveway gate
Sewage access chamber
Removable steel security bollards
Outdoor bollard with angled top
Concrete filled steel bollard
Standard heavy duty steel security bollard
Safety Bollard Baseplate Mount
Collapsible bollard for culvert debris control

See some of the projects ENCAT has helped to complete in Australia

Picture of John Ford
John Ford

Founder & Director of ENCAT Australia

You know, back in 1989, a new metal fabricator in NSW emerged – ENCAT. We craft a range of products that are focussed on safety. Specialising in Pedestrian Fencing, ENCAT ensures our roads aren’t just strips of tarmac, but lifelines where every step you take and every drive you make is cushioned with care. 

When you think roads, think safety. When you think safety, think ENCAT. Your life’s worth it.