Complex sentence: In 1886, the first bridge intended to be permanent was built by the American Bridge Company, but it was destroyed in 1890, replaced in 1893 and that second "permanent" bridge destroyed in the flood of 1894.
Split into simpler sentences: In 1886, the first bridge intended to be permanent was built by the American Bridge Company, but it was destroyed in 1890, and replaced in 1893. That second "permanent" bridge was destroyed in the flood of 1894.