Levees are often built as part of a flood resilience programme, however, there is always a small risk that a levee may fail or be overtopped. “Field of dreams” levees – an area of intentionally undeveloped land behind a levee that is subsequently built over – are becoming increasingly frequent.
- California Water blog: St Helena, California: Dealing with a field of dream levee, residual risk and a flood of controversy
Greening the Los Angeles River
The Los Angeles River is mostly a broad concrete channel, largely empty until the rainy season – when there is one. A new project hopes to return sections of the river to a more natural state, providing cooling and invigorating urban green space. The impacts of the proposed schemes can be seen through a series of images.
- Environment360: How to restore an urban river? Los Angeles looks to find out
- Environment360: Views – Los Angeles aims to revitalise a concrete river