Rapidly moving debris and landslides can injure people, disrupt utilities, damage homes and other buildings, and block transportation corridors and transit rails, impacting both commuters and people who need to evacuate. They pose an acute threat to the safety of those who live or who are using roadways below them. The placement of roads in valleys or along the sides of slopes and roads themselves can destabilize slopes over the long term.
Members of socially vulnerable and low-income communities may have fewer resources to recover in the aftermath of debris flows. Renters can have limited control over whether or when their housing may be repaired or rebuilt. Socially vulnerable communities can be more likely to experience challenges during disasters, especially if they also lack access to transportation, lack access to cell phone or internet service, or face language barriers.
Possible Adaptation Strategies
- Develop a communication plan and early warning system.
- Proactively monitor and assess slopes for slide vulnerability before and after a flood event.
- Protect homeowners and renters by ensuring that sellers and landlords disclose debris flow and landslide risks.
- Maintain regulations to limit development in landslide-prone areas.