Asset Management for Deepdraft Navigation Channels O&M

Transcription

1 Asset Management for Deepdraft Navigation Channels O&M Ned Mitchell Research Civil Engineer ERDC-CHL Vicksburg, MS AAPA Harbors and Navigation Committee Meeting Feb. 10 th, 2015 Port of Miami

2 O&M Dredging and Asset Management Given constrained funding, objective is to maximize the efficiency of the Marine Transportation System (MTS) nationwide: 300+ navigation projects regularly maintained Channel depth-utilization considerations Dredging cost tradeoff decisions work package details Corps Asset Management initiative is accounting for these and other issues within its deep-draft channels PDT.

3 O&M Dredging and Asset Management Components of technical approach: Digitized, hi-res channel surveys for calculating dredging volumes (e-hydro) Localized shoaling forecasts to capture time component of dredging project management (CSAT) Detailed Waterborne Commerce data to capture depthutilization and enable advanced analytics (CPT) Proxy BCRs to compare (proposed) work package efficiency in a straightforward manner (via CPT)

4 Detailed Shoaling Data Analysis on 10 x 10 grid Elevations Avg/max/min shoaling rates

5 Shoaling Rate BUILDING STRONG

6 e-hydro bathymetry raster Surveys are processed in e-hydro and output data is stored in a geodatabse

7 CSAT Survey Processing 2007 Survey pairs compare multiple surveys between dredging events 2012 Survey pairs are differenced and time between each event is used to find the average rate of change on the 10 x10 grid.

8 Cumulative Dredging Requirements 900,000 Average Rate Average Volume Dredge Interval, Reach_ID (ft/yr) (CY/yr) yrs RR_01_ROU_ , ,000 RR_01_ROU_ , ,000 y = x - 2E , , , , , , /1/1984 3/1/ /1/1985 7/1/1986 3/1/ /1/1987 7/1/1988 3/1/ /1/1989 7/1/1990 3/1/ /1/1991 7/1/1992 3/1/ /1/1993 7/1/1994 3/1/ /1/1995 7/1/1996 3/1/ /1/1997 7/1/1998 3/1/ /1/1999 7/1/2000 3/1/ /1/2001 7/1/2002 3/1/ /1/2003 7/1/2004 3/1/ /1/2005 7/1/2006 3/1/ /1/2007 7/1/2008 3/1/ /1/2009 7/1/2010 3/1/ /1/2011 7/1/2012 Average Volume (CY/yr) 20,274

9 Cumulative Dredging Requirements 60,000,000 50,000,000 y = x - 1E+08 R² = ,000,000 30,000,000 20,000,000 Average Volume (CY/yr) 2,320,358 10,000, Reach_ID Average Rate (ft/yr) Average Volume (CY/yr) Dredge Interval, yrs GA_01_ENT_ ,569 - GA_02_OBC_ , GA_03_IBC_ , GA_04_BRC_ ,537 - GA_06_BRE_ ,986 - GA_07_ETS_ ,065 - GA_08_TSB_ ,395 - GA_1A_EXT_1* , * Average volume not Innovative included in total solutions average for volume. a safer, better world

10 CPT/e-Hydro/CSAT Integration Target Elev, ft (MLLW) Dredge Cut, ft (MLLW) Quantity (CY) at different future times to reach specified depth Now 6 mos. 12 mos. 18 mos. 24 mos. 30 mos. 36 mos , , ,205 1,207,360 1,625,518 1,999,915 2,230, , , , ,467 1,203,905 1,517,865 1,697, , , , , ,851 1,195,519 1,353, ,615 52, , , , ,472 1,080, ,801 26, , , , , , ,107 12,820 52, , , , , ,187 27,232 CSAT 99,895 provides 236,771 these 407, , ,695 54, , , , ,812 shoaling 29,086 85,495 forecasts 182, , ,271 15,452 45, , , ,243 21,502 56,055 99, ,312 9,467 24,086 46, ,256 6,834 15, , ehydro does this

11 Galveston Entrance Channel and Harbor

12 Channel Portfolio Tool (CPT) Via Waterborne Commerce data, CPT can generate depth-utilization profiles showing the distribution of cargo across the range of maintained depths for any system of navigation channels.

13 Origin-Destination Freight Flows The O-D flows within the WCSC data allow the Corps to evaluate navigation project interdependencies. This in turn allows for systems-based optimization approaches.

14 CPT Depth-Utilization South Atlantic Division

15 CPT Depth-Utilization Southwest Division and Coastal Louisiana

16 Depth-utilization via CPT Total Annual Cargo We can subtract any cargo not We can focus on the supported by a proposed O&M cargo transiting at just dredging work plan the deepest maintained depths Draft (ft)

17 Columbia River (near Astoria, OR)

18 Columbia River (near Astoria, OR)

19 Texas City Approach Channel

20 Texas City Approach Channel

21 MVN - Calcasieu Reach_ID Average Rate (ft/yr) Average Volume (CY/yr) Dredge Interval, yrs CR_52_CLI_ , CR_53_CNI_ , CR_50_DE1_ ,254, CR_51_DE2_ , CR_01_UPR_ , CR_02_UPR_ , CR_03_UPR_ ,236, CR_04_UPR_ , CR_05_UPR_ ,034, CR_06_UPR_ , CR_07_UPR_ , CR_08_UPR_ , CR_09_UPR_ , CR_10_UPR_ , Quantities are only displayed for the upper portion of the Calcasieu.

22 Calcasieu Outer Bar

23 Dredge Work Package Formulation Remaining development tasks include CPT interface enhancements to give project dredging managers the capability to formulate efficient work packages. Cargo is shared between and across navigation projects. CPT Rollup capability ensures no double counting. Dredging requirements are additive, so straightforward summation of CY to ensure a given target depth.

24 CPT Dredge Work Package Rollup Example Reach Name Target Elev. Tons Supported Now 1 year 2 years 3 years Calcasieu Outer Bar M Calcasieu Lower Reach M Calcasieu Middle Reach M Calcasieu Upper Reach M Lake Charles Terminals M Lake Charles Turning Basin M Work Package Options Target Elevations Tons Supported Now 1 year 2 years 3 years 1 42, 42, M , 42, M , 41, M

25 Other Performance Metrics and Advanced Analytics We are not limited to counting stats such as tons and cargo value. Benefits, however they are defined, can now be directly compared to these detailed, quantitative dredging cost estimates. Benefits can include commodity-specific freight corridors and estimates of shipping cost savings.

26 Waterway Freight Corridor Examples Northeast fuel shipments

27 Waterway Freight Corridor Examples Soybeans Fuels

28 Waterway Freight Corridor Examples Soybeans Coal Fuels

29 Waterway Freight Corridor Examples Soybeans Coal Chemicals Fuels

30 Tons per voyage analysis: National Summary

31 Tons per voyage analysis: National Summary

32 Vessel Draft Sensitivities

33 Lower Mississippi River Average voyage distances, US Census data on foreign countries of origin/destination for Lower Mississippi River used to estimate average distance per voyage: Sample Countries of Origin/Destination Distance (mi) Venezuela 1750 Estonia 6950 Mexico 650 Brazil 3750 Colombia 1650 India The Netherlands 5600 Spain 5100 United Kingdom 5300 Egypt 7300 Average Voyage Distances Tanker Imports: Dry Bulk Imports: 3640 mi 4853 mi Tanker Exports: Dry Bulk Export: 7311 mi 6574 mi

34 Questions? Asset Management for Deep-draft Navigation Channels O&M Ned Mitchell, PhD