FEMA Flood Mitigation Assistance (FMA) Grant Program

Reduce peak flood flows into the river.

In addition to increasing capacity of the river, flood risk can also be improved by reducing the amount of water that enters the LA River at peak flows. Upstream storage or detention facilities, such as dams, help to store runoff during…

Increase capacity of the river in high risk areas to provide flood risk reduction to at least the 1% (100-year) annual chance flood event or to a level recommended by a risk assessment.

Levels of flood risk management vary along the 51-mile channel. The 1% (100-year) event is used as a target in this plan because it is the standard for the National Flood Insurance Program (NFIP) and studies show that using this…

FEMA Flood Mitigation Assistance (FMA) Grant Program

Reduce peak flood flows into the river.

Increase capacity of the river in high risk areas to provide flood risk reduction to at least the 1% (100-year) annual chance flood event or to a level recommended by a risk assessment.

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