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AOPOA Online
Information about the McClellan-Kerr
Arkansas River Navigation System
Lock Locations
Maps & Charts
Shipping FAQs
Directory of Ports & Terminals
About AOPOA
Contact
Home Page
Corps of Engineers
The locks and dams along the McClellan-Kerr waterway are maintained by the
Little Rock District
and
Tulsa District
offices. We appreciate their support.
Knowledge Port
Lock Locations
Maps & Charts
Common Shipping Questions
Port & Terminal Directory
Barge & Towing Companies
Law Enforcement / Regulation
Environmental Advantages of Waterway Shipping
Useful Links
National Waterways Conference
Arkansas Waterways Commission
Ark. Highway and Transport Dept.
Oklahoma Dept. of Transportation
USDOT
Maritime Education Center
How Locks Work
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Animation showing how a lock works
Animation by: Tulsa Port of Catoosa