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Removal of rock pinnacles in dropping river progressing slowly

MISSISSIPPI RIVER — Crews scooping out Mississippi River bedrock in southern Illinois are making steady progress but have removed just a fraction of the rock pinnacles that are impeding navigation along a stretch of the drought-plagued waterway, an Army Corps of Engineers official said. Excavating machinery had chiseled away 39 cubic yards of rock by Tuesday morning, less than 5 ...

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