What is the horizontal width of the main...

Question 1 of 27070673956e598d45f16831b6d7e

What is the horizontal width of the main channel span of the Vicksburg Bridge Interstate 20 at mile 437.7 (AHP)?

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Question 1 of 27070

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What is the horizontal width of the main channel span of the Vicksburg Bridge Interstate 20 at mile 437.7 (AHP)?

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🔍 Key Concepts

• U.S. Coast Guard Light Lists / Bridge Reference Tables for the Mississippi River • Difference between horizontal clearance (main channel span width) and overall bridge length • Carefully reading the mile marker (AHP) and structure description to ensure you are looking at the correct bridge span

💭 Think About

• How can you confirm you are looking at the main navigation span, not an auxiliary or fixed span, when checking bridge data? • Which reference publication and section would list the horizontal clearance in feet for a specific bridge at a specific river mile? • Do the larger numbers given in the choices seem more like a total bridge length or a single channel span width for a river crossing?

✅ Before You Answer

• Verify you are on the correct river (Mississippi River) and the correct mile 437.7 Above Head of Passes (AHP) • Confirm you are reading the column labeled horizontal clearance / main channel span and NOT vertical clearance or overall length • Double‑check that the units are in feet and that you’re not confusing charted distances or scale with the stated clearance value