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A ponte sobre o rio Caracol, localizada no km 79 da Estrada de Ferro Madeira-Mamoré, é uma verdadeira maravilha da engenharia ferroviária, com mais de cem anos, intacta. Apenas mostra corrosão nas bases em decorrência das cheias do rio, graças a construção das usinas que agora usam a região como parte de seu reservatório. Os aparelhos de apoio como este com roldanas utilizado na estrutura servem para distribuir o peso gerado pela passagem das composições, é um sistema muito utilizado em pontes ...
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