Floodway (road)
A floodway is a flood plain crossing for a road, built at or close to the natural ground level.[1]
A floodway on a gravel road
They are designed to be submerged under water, but withstand such conditions. Typically floodways are used when the flood frequency or time span is minimal, traffic volumes are low, and the cost of a bridge is uneconomic[2][3] – in most cases, in rural areas.
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Floodway on Great Northern Highway, Western Australia
Floodway and signs, eastern side of Southern Cross, Western Australia
Floodway (road goes across the photo) in Baja California, Mexico. Note bridge behind it.
Notes
- Edmonds, Leigh (1997). The Vital Link: A History of Main Roads Western Australia 1926–1996. Nedlands, Western Australia: University of Western Australia Press. p. 184. ISBN 1-875560-87-4.
- MRWA Waterways Section; BG&E Pty Ltd (24 April 2006). "Floodway Design Guide" (PDF). Main Roads Western Australia. p. 4. Archived from the original (PDF) on 15 April 2015. Retrieved 15 April 2015. Additional archives: 15 April 2015.
- Austroads; Flavell, David; Audora, Henry (1994), Waterway design : a guide to the hydraulic design of bridges, culverts and floodways, Austroads, ISBN 978-0-85588-440-6
- Department of Transport and Main Roads (March 2010). "Chapter 10 Floodway Design" (PDF). Road Drainage Manual. Queensland Government.
- Lokuge, Weena; Setunge, Sujeeva; Karunasena, Warna (2014). Investigating the performance of floodway in an extreme flood event (PDF). 1st International Conference on Infrastructure Failures and Consequences (ICFC 2014) 16–20 July 2014. Melbourne, Australia.
gollark: osmarkslibc™ `malloc`:```c#include <stdint.h>#include <stddef.h>static uintptr_t MEMPOS = 1;void* malloc(size_t size) { uintptr_t bees = MEMPOS; MEMPOS += size; return (void*)bees;}void free(void* ptr) { *(char**)ptr = "hello please do not use this address";}```
gollark: I hope you were not malloced using my implementation.
gollark: ++delete all operating system development
gollark: > strings prefixed by the length are bad because you cant take a subset of the string by just adding an offset to the pointer and have it be a valid stringWait, you can't really do that anyway with null-terminated ones if you want a subset of fixed length.
gollark: You shouldn't do that. That would possibly cause so many memory issues.
See also
- Flood control channel
- Glossary of road transport terms
- Low water crossing
External links
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