Crash Rated Water Filled Barriers for Road Construction Projects in Auckland
Tower Temporary Fencing supplies high-performance Water Barriers in Auckland designed for use on road construction, infrastructure upgrades, and temporary traffic management projects. These barriers provide a protective separation between live traffic and active work zones, helping improve safety for road workers, motorists, and pedestrians. Often in conjuction with our temp fencing packages. We also provide construction barriers, portaloos, ground protection, and sound mats to create a full suite of products for your construction sites.
Our Water Barriers are designed to meet MASH TL2 crash-testing standards, which are widely used for temporary work-zone protection on roads with operating speeds up to approximately 70 km/h.
Water-filled barriers are commonly used on motorway maintenance works, urban road upgrades, and civil infrastructure projects where reliable vehicle containment and work-zone separation are required.
What Type of Water Barriers Do We Provide?
We provide modular polyethylene safety barriers that are installed empty and then filled with water once positioned on site. The added ballast significantly increases the barrier’s mass, allowing it to absorb energy and redirect vehicles during an impact.
MASH TL2-rated Water Barriers are designed to:
Redirect vehicles away from work zones
Reduce the severity of vehicle impacts
Protect road workers and equipment
Create clear traffic separation along road projects
These barriers are crash tested under the Manual for Assessing Safety Hardware (MASH) standard, which evaluates how safety hardware performs during vehicle impacts. For TL2 applications, barriers are typically tested at speeds around 70 km/h with controlled impact angles.
Water Barriers for Roading and Traffic Management Projects
Water Barriers are widely used in road construction environments where workers operate near live traffic lanes. Their modular design allows them to be quickly deployed and repositioned as traffic management layouts change.
Typical roading uses include:
Road widening and resurfacing projects
Temporary lane closures
Bridge and overpass construction
Utility works within road corridors
Motorway maintenance and upgrades
Because Water Barriers can be interconnected to form continuous barrier systems, they provide a reliable safety boundary along construction zones and traffic diversions.
Typical Specifications
Modern Water Barriers used in roading projects share similar design characteristics and dimensions.
| Specification | Typical Value |
|---|---|
| Length | 2000 mm |
| Height | ~1000 mm |
| Width | ~580 mm |
| Interconnected Length | ~1700 mm pin-to-pin |
| Empty Weight | ~62 kg |
| Filled Weight | ~660 kg |
| Water Capacity | ~600 litres |
| Material | High-density polyethylene (HDPE) |
| Performance Rating | MASH TL2 (approx. 70 km/h work-zone speeds) |
These modular barriers connect together using steel pins to create a continuous longitudinal safety barrier along road construction sites.
End Terminals and Safety Treatments
When installing Water Barriers on road projects, appropriate end terminals and safety treatments must be used to ensure the barrier system performs safely.
Typical end treatments include:
Terminal barrier sections
End caps designed to create a flat barrier face
Attachment points for reflective delineation or signage
In many TL2 systems, the end treatment consists of two terminal barrier units and a cap forming a safe end surface for attaching safety delineation.
End terminals are critical because they help prevent exposed barrier ends from creating hazards to vehicles approaching the system.
Site-Specific Design Requirements for Water Barriers
Road construction projects require site-specific barrier layouts to comply with traffic management standards and safety guidelines.
In New Zealand, barrier systems used in temporary traffic management environments must typically align with requirements under:
NZTA / Waka Kotahi Temporary Traffic Management guidance
Code of Practice for Temporary Traffic Management (CoPTTM)
MASH crash-testing standards for safety hardware (ranging from TL1-TL4)
These guidelines determine factors such as:
required barrier length
placement relative to traffic lanes
end treatment requirements
clear run-out areas
traffic speed environment
While Water Barriers themselves provide physical protection, the overall barrier layout is normally designed by traffic management planners or engineers as part of the project’s Corridor Access Request (CAR) and corresponding Traffic Management Plan (TMP). We can assist in the design and implementation of Temporary Traffic Management with our in-house TTM crew, although site conditions may mandate the requirement of greater protection barriers e.g. TL3 – TL4 which we do not hire as part of our offering. Get in touch for more information.
Benefits of Water Barriers on Road Construction Sites
Using Water Barriers provides several advantages for civil contractors and traffic management teams.
Key benefits include:
Improved safety between traffic and workers
Modular system suitable for changing work zones
Quick installation and removal
Durable polyethylene construction designed for outdoor environments
Compatibility with traffic management layouts
Because the barriers are filled on site, Water Barriers are relatively lightweight during transport and installation but become significantly heavier once filled with water.
While specifically designed for crash rated applications in the road corridor, many of our customers use these as internal positive site traffic management devices to isolate vehicles from pedestrians with extra emphasis on health and safety.
Water Barrier Hire in Auckland
Tower Temporary Fencing supplies Water Barriers in Auckland for civil contractors, infrastructure companies, and traffic management projects.
Our services include:
Delivery of Water Barriers across Auckland
Installation and removal on roading projects
Flexible hire periods for construction programmes
Support for temporary traffic management environments
Whether you are managing a motorway upgrade, urban road works, or civil infrastructure project, our Water Barriers provide reliable work-zone protection.