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Port of Barranquilla Access Channel

Port of Barranquilla Access Channel. John Headland, PIANC VP, SVP Moffatt & Nichol Dr. Rafael Canizares, PhD, Moffatt & Nichol Santiago Alfageme, VP, Moffatt & Nichol. The Magdalena River. Average Discharge: Amazonas 175,000 m3/s (1) Mississippi 17,500 m3/s (12)

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Port of Barranquilla Access Channel

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  1. Port of Barranquilla Access Channel John Headland, PIANC VP, SVP Moffatt& Nichol Dr. Rafael Canizares, PhD, Moffatt & Nichol Santiago Alfageme, VP, Moffatt & Nichol

  2. The Magdalena River • Average Discharge: • Amazonas 175,000 m3/s (1) • Mississippi 17,500 m3/s (12) • Magdalena 7,200 m3/s (>20) • Amazonas = 25 X Magdalena • Mississippi = 2.5 X Magdalena • Sediment: • Amazonas 1,200 MT/año (1) • Mississippi 210 MT/año (7) • Magdalena 220 MT/año (6) • Amazonas = 5.5 X Magdalena • Mississippi = 0.95 X Magdalena Source: J. Restrepo, John Milliman 1995

  3. Access Channel – Design depth • HandymaxVessel (T=33 ft, L= 200 m, B= 26 m) • 40.0 ft at entrance • 37.5 ft in channel • 36.5 ft at terminal Source:USACE/PIANC

  4. OBRAS DE PROFUNDIZACION DEL CANAL DE ACCESO AL PUERTO DE BARRANQUILLA Barranquilla

  5. Structure Locations June 2011 0 1 2 3 6 5-Dique Guia

  6. Functional design based on analytical and numerical modeling considering the number and length of structures Armor stone weights based on current velocities and waves “Falling Apron” used to accomodate scour Structure Design

  7. Espolón 1

  8. Espolón 1

  9. Predicted Morphology

  10. Channel Evolution 2005-08 Profundidad (Pies por debajo de nivel del mar)

  11. Depths 2006-2008

  12. PREDICTED 52.5’ 39.4’ 32.8’ 29.5’ 24.6’ 16.4’ <16.4’ MEASURED

  13. PREDICTED 52.5’ 39.4’ 32.8’ 29.5’ 24.6’ 16.4’ <16.4’ MEASURED

  14. PREDICTED 52.5’ 39.4’ 32.8’ 29.5’ 24.6’ 16.4’ <16.4’ MEASURED

  15. PREDICTED 52.5’ 39.4’ 32.8’ 29.5’ 24.6’ 16.4’ <16.4’ MEASURED

  16. Universidad del Norte/Cormagdalena JULIO 2012

  17. Universidad del Norte/Cormagdalena 52.5’ 39.4’ 6 5-Dique Guia June 2011 32.8’ 29.5’ 24.6’ 16.4’ <16.4’ JULIO 2012 6 July 2012 5-Dique Guia

  18. 52.5’ 0 1 39.4’ 32.8’ 2 29.5’ 3 24.6’ 16.4’ <16.4’ JUNE 2011 0 1 2 3 JULY 2012

  19. Universidad del Norte/Cormagdalena JULIO 2012

  20. Areas of Concern(Uninorte/M&N - 2011) • Entrance Channel Universidad del Norte/Cormagdalena

  21. Areas of Concern(Uninorte/M&N - 2011) • EntranceChannel • Sediment Bar at theentrance Universidad del Norte/Cormagdalena

  22. Areas of Concern(Uninorte/M&N - 2011) Universidad del Norte/Cormagdalena • EntranceChannel • Sediment Bar at theentrance • DiscontinuityatlE0-E1

  23. Areas of Concern(Uninorte/M&N - 2011) Universidad del Norte/Cormagdalena • EntranceChannel • Sediment Bar at theentrance • Discontinuityatl E0-E1 • Discontinuity at K14-K16

  24. Areas of Concern(Uninorte/M&N - 2011) • EntranceChannel • Sediment Bar at theentrance • Discontinuityatl E0-E1 • Discontinuity at K14-K16 • Displacementdownstream of Rondón island Universidad del Norte/Cormagdalena

  25. Focus Areas of Concern • ApproachChannel • Sediment Bar • Access ChannelLimitations

  26. Approach Channel

  27. Approach Angle Simulations • SimulatedConditions • 10,500 m3/s • Wind: 15 knots NW • Waves: 1 m, 8 s, NW • Transitspeed 9 knots (groundspeed)

  28. ApproachChannel • Original approach=150odegrees, lately 140oisused • 2 sedimentbarson NE side of entrancechannellimitvesseldraft • A safeentranceapproachmanueverwasdevelopedusingfast-time simulationwithPilot Input

  29. Sediment Transport Regime At Mouth Low Q High Q Average Q

  30. Bed Load Sediment Transport at Bocas Desplazamiento de la isobata de 20 m entre 2007 al 2010 Source: Universidad del Norte

  31. ApproachChannel • Dredge to 40’ November 2011(green & yellow) • ByJuly 2012 Barsfillchannel Source: Universidad del Norte/Cormagdalena July 2012

  32. FutureWork/Solutions • Additionalanalyses/data to better define sedimenttransport • Design a maintainedsedimenttrap to avoidformation and growing of thesedimentbars • Continuedredging of theexistingapproachchannel to maintainthedesigndraft

  33. Sediment bar at Bocas de ceniza (K0)

  34. Salt to Fresh water transition – Possible location of ETM

  35. 1. High to MediumFlow Example: January 2009 toMarch 2009

  36. 2. Transition to LowFlow Example: December 2009 toFebruary 2010

  37. 3. Transition to HighFlow Example: May 2010 toJuly 2010

  38. Sediment transport regime at the mouth Low Q High Q Average Q

  39. Bottom currents Low Q High Q Average Q

  40. Status • Sediment bar formed again in October 2012 after 4 months of average flows 5,500 to 6,700 m3/s • The bar will likely erode when discharge increases to 8,000 in December Source: CormagdalenaOctober, 30 2012

  41. Access channel limitations

  42. Access Channel Limitations • Handymax: 200m, 26 m, 33 ft • Panamax: 260 m, 32 m, 39.5 ft • Post Panamax: 300m, 42 m, 46 ft • 1-way straightchannelwidthis 2.5 to 5 x vesselbeam • Simulations are required to define thedesignchannelwidth.

  43. Access Channel Limitations • Channelaccessislimited • A turningbasinisproblematicdue to largeriversedimenttransportrates • Largerdraftwillrequired more training structuresthatnarrowtherivercrosssection • Butlargervesselsneed more width • Studyneeded to define themaximumvesseldimensionthatcouldhavesafeaccess to Barranquilla

  44. TM Creative People, Practical Solutions. Moffatt & Nichol Colombia S.A.S Avenida 9 No. 113-52, Of. 1201 Bogotá D.C., Colombia P +57.1.742.9059 Muchas Gracias !

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