A headwall is a small retaining wall placed at the outlet of a stormwater pipe or culvert. It serves to minimise vegetation growth and reduce erosion around the culvert inlet and outlet.
The useful life of a headwall will depend on a number of factors. Many Councils assume a useful life of 80-100 years.
The table below shows the useful life for headwalls adopted by Councils or published elsewhere. Please feel free to add your Councils information.
External Links & References
- Glossary of Austroads Terms
- Humes Headwalls Page
- Rocla Headwalls Page
- Colyconcrete Headwall Page
- Google Search
- Standard Life Comparison Roads and Stormwater