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In Haiti, millions of people regularly lose access to schools, hospitals and markets as even slight rains can cause floods, making roads and trails very dangerous to cross. Even during dry weather, most of these people must walk many hours to reach main roads.

Hundreds of millions of people living in isolated rural communities and urban informal settlements countries with low levels of human development share these problems.

Their governments usually lack the ressources needed to improve secondary and tertiary roads.

A particular problem is the absence of ressources for bridges. When bridges are built as part of international cooperation programmes, they rarely help to develop local capacity to build bridges for small roads. When users can gather enough funds, they might be able to make concrete slab bridges for small crossings, but these are costly, especially as they tend to last only a few years.

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Models of Noria’s light bridges : foot bridges, light bridges for rural areas
and a suspended foot bridge.

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Detail of a bended sheet metal profile for a bridge in Haiti.
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Detail of bended sheet metal membrane for a bridge in the Democratic Republic of the Congo.