Road ecology blog: Bridges across streams, Parque Estadual 'Carlos Botelho', São Paulo, Brazil. Many of these bridges are wide enough to also include a terrestrial zone under the bridge. This makes the bridges multifunctional as they not only allow for the stream or river to cross under the road, but they also allow - at least in theory - terrestrial mammals to cross.
Click here for images of multifunctional underpasses.
Click here for images of wildlife underpasses.
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