🔍 Key Concepts

• Mississippi River mile markers (AHP – Above Head of Passes) and how locations like Profit Island Chute are described on charts/light lists • What local river regulations or navigation notes say about chutes, shortcuts, and closures for commercial traffic • How tow size/length restrictions and bank passing requirements are normally worded in river regulations

💭 Think About

• Look at each answer choice and ask: does this sound like a general navigation rule or a very specific local restriction that you’d confirm in a river chart or local notice? • Think about how the Coast Guard or Corps of Engineers would phrase a rule if an area were completely closed to navigation versus just restricted for certain types of tows. • Consider whether Profit Island Chute is typically treated as a primary, regulated route for tows or as an area with special limitations or closure.

✅ Before You Answer

• Compare each statement with how similar restrictions are written in CFRs or local navigation regulations for inland rivers. • Ask yourself: if this area were closed or had a tow length limit, would that likely be clearly shown on charts and in notices to mariners? • Verify which statement best matches how actual local rules usually describe Profit Island Chute’s status (open/closed and any conditions) rather than sounding like a made‑up restriction.