The Heffernan Dry Dock - Length 385 feet, width 100 feet, depth of water over blacks 22 feet, capacity 8,000 tons.

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The Heffernan Dry Dock, Seattle. Length 385 feet, width 100 feet, depth of water over blocks 22 feet, capacity 8,000 tons. 4

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3034 PUBLISHED BY LOWMAN & HANFORD CO., SEATTLE. VALIFY I&H DU 2.12 R-23188 THIS SPACE FOR ADDRESS ONLY.