DMMP Workshop CPT Kenneth-Mitchell

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US Army Corps of Engineers

BUILDING STRONG

Performance-based Budgeting viathe Channel Portfolio Tool (CPT)

Kenneth Ned Mitchell, PhDUS Army ERDCCoastal and Hydraulics Lab (CHL)

Vicksburg, Miss.

Galveston DistrictDMMP WorkshopApril 22th, 2011


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Motivation

Fiscal realities are forcingthe Corps to make difficultdecisions concerningO&M of the Nations

waterway infrastructure


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USACE Navigation Portfolio

700+ navigation projects are actively maintained;wide variation in spatial extent and level of use.

Centralized budgeting process and a rollingbudget cycle.

HQ Provides Budget

Guidance ( Mar )

HQ Review &

Approval( May -Jun )

Budget Presented

to Sec. Army(Jul - Aug )

OMB Passback( Nov )

Budget Submittedto OMB ( Sep )

Presidents Budget

to Congress ( Feb )

Field Offices DevelopProgram Requirements

( Apr - May )

Appropriations Bills

( Jul - Sep )

President SignsApprop. Bill( Sep - Oct )

OMB Provides BudgetGuidance ( Jan )

Funding Alloc.To Field Off ices

( Oct - Dec )


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Annual O&M Budgeting

Projects are grouped based on total annual tonnage:

But there still is no systematic, comprehensiveframework for distributing O&M funding

Annual Total Tonnage

(Avg. 2004-2008)

Total O&M

Dredging $, FY10

(Millions of $)

% of

Total

59 projects > 10M tons $431.0 58.4%

10M tons > 97 Projects > 1M tons $173.2 23.5%

1M tons > 210 Projects $133.4 18.1%


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Resulting decision-making process isad hocand difficult to defend.

OMB has indicated that improved

O&M justification is a precondition forincreased outlays from the HarborMaintenance Trust Fund (HMTF).

Push within USACE is towards

system-level analysis andperformance evaluation.


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Baltimore

A typical USACE Navigation project will

contain many miles of maintained channels.

Projects are currently prioritized for O&Mfunding based upon total project tonnage.

Current approach does not systematicallyconsider relevant factors such as cargo value,

depth of transit, and channel condition.


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Waterborne Commerce Data

The Corps Waterborne Commerce Statistics Center(WCSC) collects and maintains data concerningcommercial use of US waterways.Dock-level detail

Includes tons, commodity types, vessel draftAggregated data published at project level (OMBIL)

Corps planning community has used WCSC data tosupport harbor deepening projects

Corps Operations personnel have heretofore lackedthe time and resources to fully utilize WCSC datafor informing O&M budget decisions

http://www.ndc.iwr.usace.army.mil/wcsc/wcsc.htm
http://www.ndc.iwr.usace.army.mil/wcsc/wcsc.htmhttp://www.ndc.iwr.usace.army.mil/wcsc/wcsc.htm


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Channel Portfolio Tool (CPT)

https://itlgis01.usace.army.mil/CPTWeb/


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Channel Portfolio Tool (CPT)

CPT uses this dock-level, Corps-use-only tonnagedatabase from WCSC to analyze the extent to whichcommercial traffic utilizes maintained channel depths.

Present and anticipated channel limiting depths can becompared directly to the historical distribution ofcommercial cargo across the maintained depths.

Navigation channels can then be ranked in terms of tons

and $-value of cargo transiting at depths that are mostvulnerable to shoaling.


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Spatial Join to Waterway Network

CPT spatially joins the docks in theWCSC database with the respectivesub-reaches.

Full network connectivity, ensuringthat all transited channels areappropriately credited.

Shortest-path routing used fordomestic and inland river traffictransiting multiple projects.


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Depth Utilization Analysis

CPT compares these tonnage-draft profiles to thesegment limiting depths resulting from present

shoaling conditions.

With all shipments routed through the network of

channels, usage profiles showing the distribution oftonnage across the range of maintained depths canbe generated for any given segment.


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Navigation Systems Defined

CPT provides a flexible,accessible means ofdefining systems ofmaintained channels.

Corps decision makerscan now see the extentto which these

navigation systems areutilized by commercialshipping.


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Ranking System Components

Components of larger system canbe compared to one another.


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Ranking System Components

They can also be

consolidated to seeoverall systemperformance.


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Visualizing Channel Utilization

Traffic and commodity breakdownshelp convey relative dependence onCorps dredging activity.


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Visualizing Project Utilization


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Visualizing Project Utilization


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CPT Commodity Flow Feature


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CPT Commodity Flow Feature


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Inclusion of Shoaling Effects

District Rollup for1 ft of shoaling2345


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CPT for Budget Development

Next steps:

CPT has not yet been included in the Budget EC, so there is an

opportunity to help craft future guidance.

For FY13 budget development, CPT can already help inform

discussions and provide decision support for setting dredge-to depthsand work package budget requests.

Consensus is needed on suitable prioritization metrics for budget

development in the future, e.g. tonnage using deepest n-ft of channel

depth.

CPT allows for improved understanding and analysis of navigation

systems; challenge becomes transferring this increased knowledge

into future budgets.


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Documents

DMMP Workshop CPT Kenneth-Mitchell