Brought (up), as from the distant past

• Hauled up (from depths)
• Unearthed (with "up")
• Made deeper, as a shipping lane
• Saved from obscurity, with "up"
• Scraped the bottom of
• Changed channels, in a way
• Sprinkled with flour
• Coated in flour

Wiktionary Word definitions in Wiktionary
vb. (en-past of: dredge )