Red River Navigation Committee

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• Red River Navigation Committee
• LC Boggs Lock and Dam Approach Channel Study
• 18 February 2009

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Existing Dike Field Hydraulic Model Limits
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Scope

• Add Lower Approach Channel to
• Existing Model
• Address Difficult Navigation at the
• Lower Approach to L.C. Boggs Lock
• and Dam

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Added L.C. Boggs Lower Approach
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Higher Flows Affect Water Surface Levels over the
Eddy
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Plans Tested

• Structure, downstream widening, flow
• Routing ideas
• Widening the channel along the east
• bank seems to be the only significant
• and feasible improvement at low flows.

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Widening also removes the whirlpools Navigation
Pothole
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Questions - Discussion

• Earthwork for 150 ft widening would be
• around 322,000 cubic yards. Flow
• velocities drop by 30 and the
• widening removes the whirlpool/vortex
• dip.
• Comments