Question 456Navigation General70% to pass
Who should be consulted for changing conditions of controlling depths in major channels?
AI Explanation
The correct answer is C) U.S. Army Corps of Engineers.
The U.S. Army Corps of Engineers is responsible for maintaining and monitoring the controlling depths in major navigable channels and waterways. They conduct regular surveys to assess any changes in depth and work to dredge and maintain these channels to ensure safe navigation. Other agencies like the National Geospatial-Intelligence Agency, National Ocean Service, and U.S. Coast Guard may provide supporting data and information, but the primary authority for changing or reporting on controlling depths lies with the U.S. Army Corps of Engineers.
Related Questions
#454 The compass rose on a nautical chart indicates both variation and _______________.#455 At McAlpine L & D, normal upper pool elevation is 420.0 feet (130.8 meters) MSL, equal to 12.0 feet (3.7 meters) on the upper gage. The vertical clearance at the Clark Memorial Highway bridge is 72.6 feet (22.1 meters) above normal pool. What is the clearance if the gage reads 10.6 feet (3.2 meters)? #457 Information about major breakdowns, repairs, or other emergency operations with regard to weirs and (or) wicket dams, on the western rivers, may be obtained by consulting the _______________.#458 Navigation charts of the Upper Mississippi River are published by _______________.#459 How is a navigation light identified on an Army Corps of Engineers navigation map?