Poly-Flex Flood Depth Markers

Floodway & Causeway FDI

Poly-Flex Flood Depth Markers

Delnorth manufactures a complete range of standard and customised marker post products to suit floodway and causeway applications.

Polyflex is a very strong, flexible injection moulded polyurethane base with impact-resistant posts and fixtures. Poly-Flex offers high impact resistance, significantly reducing your organisation’s sign replacement and installation costs.

Manufactured in Australia. Using high-quality long-life materials, Poly-Flex Flood Markers clearly define floodways and causeways with high visibility hazard and flood depth delineation to meet state and territory standards.

Poly-Flex systems are manufactured in Australia and can be customised to meet any specification.

Australian made logo
floodway marker installed with poly-flex

Poly-Flex Flood Depth Indicators Options

PolyFlex Flood Depth Indicators

Polyflex is a very strong, flexible injection moulded polyurethane base with impact resistant posts and fixtures. It significantly reduces your organisation’s sign replacement and installation costs. Manufactured in Australia, Poly-Flex offers high impact resistance.

Surface Mount Flood Depth Indicators

Steel-Flex® Surface Mount is a durable, impact resistant and low maintenance solution for flood way delineation. Poly-Flex™ significantly reduces repetitive replacements and can withstand impact making it ideal for flood zones to provide continuous hazard and depth indication to enhance road user safety.

Benefits of using Poly-Flex flexible flood depth markers

Continuous visibility and guidance

  • Self-recovering designs stay upright and legible after strikes, maintaining lane, edge, and depth guidance marked without immediate repair.
  • Better resilience in seasonal events (flooding, storms) supports continuity of service.

Reduced maintenance and product lifecycle cost

  • Fewer post replacements and less call-out time after impacts.
  • Lower spend on traffic control, crews, and parts over the asset’s life.

Improved safety outcomes

  • Energy-absorbing, passively safe posts reduce vehicle damage and injury risk compared to rigid alternatives.
  • Maintained delineation in flood-prone or low-visibility zones reduces the risk of collisions, or road users leaving the road or causeway.
Standard black and white poly-flex floodway sign

TECHNICAL SPECIFICATIONS

  • 360° impact range
  • Bends to over 90°
  • Withstands multiple wheel overs
  • -50° to + 60° thermal resistance
  • UV stabilised
  • Colourfast
  • Bases, posts and fixtures support Sign-Flex® signs as well as traditional aluminium sign products
  • Superior to alternative metal products in high impact locations

Features

  • Very strong, flexible injection moulded polyurethane
  • Impact Resistant posts and fixtures
  • Long Lasting – Poly-Flex ™ significantly reduces your organisations sign replacement and installation costs
  • High-quality polyurethane, master batch (colour) and UV stabilisers are injection moulded at Delnorth manufacturing facilities to provide products with high impact resistance.

DOWNLOADS

Poly-Flex Flood Depth Markers SKUs

PF2S092D4-1-2A

Poly-Flex Surface Mount Double-sided Uni-directional Chevron D4-1-2A 900mm…
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Looking to enhance road safety for floodway or causeways?

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