The article on the front page today Sailboat Operator Cited for ‘Rule 9’ Violation After Crossing in Front of Tanker Near Stockton got me thinking. I recall that an instructor I once had insisted that the Coast Guard maintains a list of all the “narrow channels and fairways” within the inland waters of the US. Having never before seen such a list, I was skeptical. Now, here in the article the list for San Francisco is referenced: https://www.sfmx.org/wp-content/uploads/2019/09/MSIB_14-07_Enforcement-of-Navigation-Rules-in-San-Francisco-Bay.pdf
So my question is how many of these lists does the Coast Guard maintain?