Public Workshop Presentation-FINAL

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BUILDING STRONG US ARMY CORPS OF ENGINEERS | Jacksonville District

JACKSONVILLE HARBOR (MILE POINTNAVIGATION STUDYDuval County, Florida


Feasibility Report andEnvironmental Assessment

Public WorkshopAugust 15, 2011


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LEGISLATIVE AUTHORITY Resolution, Docket 2550, of House Committee on

Transportation and Infrastructure adopted March 24, 1998

for Mile Point, Florida Congress added funding in the appropriations for

Fiscal Year (FY) 2000 to begin the reconnaissance study;the feasibility study proceeded under that authorization


MILEPOINT

The Jacksonville Port Authority (JAXPORT)is the non-federal sponsor

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MILEPOINT

Eliminate or alleviate the crosscurrents occurring

during the ebb flow at the confluence of theSt. Johns River with the Intracoastal Waterway (IWW)

Develop/evaluate alternative plans to reduce theeffects of the crosscurrents on the Mile Point shorelineand restrictions to navigation for vessels transitingJacksonville Harbor

~ 5000 feet of shoreline alongthe north shore of theSt. Johns River, east

of the IWW

Study Purpose

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Mile Point Problems/Opportunities Difficult crosscurrents at the confluence of the IWW

and the St. Johns River during the ebb tide result in:

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Concerns about erosionof the Mile Pointshoreline

Navigation restrictionsduring the ebb tide onvessels transiting with a

draft >33 feet or 34 feetdepending on thevessel type


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Mile Point Alternatives ConsideredVariations of these alternatives were also evaluated.

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North Shoreline Groin FieldRelocate Training Wall E Chicopit Bay Diversion

Rebuild White Shells Training Wall;Short Cut Turn Widener;

150-foot Training Wall Reach Widening;Rebuild Mile Point Training Wall

San Pablo Creek IWWSubmerged Weir

Removal of the WaterwardPortion of the Mile Point Training

Wall under the O&M Program


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Hydrodynamic ModelingAlternatives were evaluated using Hydrodynamic Modeling.HIGH

FLOW

LOWFLOW



(Relocation of the MilePoint Training Wall)

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Training Wall

Removal

Existing TrainingWall

New TrainingWall

Great MarshIsland Restoration

Flow ImprovementChannel

RECOMMENDEDPLAN



Project Summary

50-Year Period of Analysis: 2015-2064FY11 Discount Rate : 4.125%October 2010 Price Levels

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Project First Cost $35,682,000

Average Annual Equivalent (AAEQ) Cost $1,776,000

AAEQ Benefits $2,437,000

Benefit-to-Cost Ratio (BCR) 1.37



Project ImplementationKey Dates

October 2011: Division Engineer Transmittal of Final Report, Initiate Design

March 2012: Chief of Engineers Final Report

2013: Begin Construction - Pending Authorization and Appropriations

Construction Duration: 15 to 16 Months*12 to 13 months: Construction of Relocated Training Wall (Phase I)

3 months: Great Marsh Island Final Grading (Phase II)

* Does not include the 12 month material consolidation period betweencompletion of Phase I and Phase II

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Public CommentsAdditional comments are due August 22, 2011Comment cards are available

Please send all comments cards to:Attn: Paul StodolaU.S. Army Corps of Engineers

P.O. Box 4970Jacksonville, FL 32232-0019

The Mile Point Feasibility Report and EnvironmentalAssessment can be found at the following locations:

Regency Square Library Online at

http://www.saj.usace.army.mil/Divisions/Planning/Branches/Environmental/DocsNotices_OnLine_DuvalCo.htm



Workshop Agenda Welcome and

Introductions Presentations

Public Comments Poster Session

2BUILDING STRONG US ARMY CORPS OF ENGINEERS | Jacksonville District

S C R E E N

Jaxport

Environmental: Paul Stodola, Mike Hollingsworth Plan Formulation: Samantha Borer, Candida Bronson

Engineering: Steve Conger, Brian Cornwell Economics: Dan Abecassis, Idris Dobbs

USACE PresentationJacksonville Port AuthorityStatements

overview

Sign-In Area

Environmental,Engineering, Economics

Public Workshop Presentation-FINAL

Documents