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FLAGLER COUNTY FLORIDA Hurricane and Storm Damage Reduction Study
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District
Public Workshop February 5, 2014 Presented by U.S. Army Corps of Engineers Jacksonville District
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District
PRESENTATION OUTLINE Background Problems and Opportunities Objectives Future Without Project Conditions Plan Formulation • Tentatively Selected Plan (TSP)
Engineering Aspects Cost Aspects Environmental Aspects
Schedule & Next Steps
2
STUDY BACKGROUND
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 3
2002
Study Authorized
(House Resolution 2676)
2004
Reconnaissance Report
Feasibility Cost-Sharing Agreement
2008
Feasibility Study
Initiated
2011
Feasibility Scoping Meeting
2014
Draft Feasibility Study and
Environmental Assessment
PROBLEMS AND OPPORTUNITIES Problems: Erosion, storm surge (inundation),
and wave attack Damage to coastal structures
and infrastructure including A1A evacuation route
Loss of natural beach habitat Threatened recreational and tourism
opportunities
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 4
Opportunities:
Reduce storm damage to coastal structures and infrastructure
Restore dunes to function naturally Protect natural habitat Protect the current hurricane
evacuation route capability Maintain recreation and tourism
opportunities
1. Reduce storm damages to structures and infrastructure
2. Maintain environmental quality
3. Maintain recreational opportunities
4. Maintain a safe hurricane evacuation route
STUDY OBJECTIVES
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 5
R-50
R-60 BEVERLY BEACH
R-67
R-1
R-4 MARINELAND
SR 100
NOT TO SCALE
FLAGLER COUNTY
STUDY REACHES
PAINTER’S HILL
R-101
FLAGLER BEACH
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 6
6
DESIGN REACHES
R-101
NOT TO SCALE
SR 100
R-50
R-60
R-80
R-94
Reach A
Reach B
Reach D (S 28th Street)
(7th Street S)
Unarmored Single Family Residences
Pier & Parking
Unarmored SR A1A & Park
Reach C Armored
SR A1A
Unarmored SR A1A
BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 6
FUTURE WITHOUT PROJECT (FWOP) CONDITION
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
$0
$1
$2
$3
$4
$5
$6
$7
$8
$9
ERO
SIO
N R
ATE
(FT/
YEA
R)
Mill
ions
LONG TERM DAMAGES AND EROSION RATES FWOP Damages Historic Erosion Rates
| A | B | C | D |
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 7 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 7
Design Reaches
8
PLAN FORMULATION
8 NOT TO SCALE
Reach A
Reach C
Reach D Project not economically justified (benefits do not exceed costs)
Project not economically justified (benefits do not exceed costs)
Federal participation is prohibited by Corps policy due to inadequate public parking and access
R-50
R-60
R-101
SR 100 R-80
R-94
Reach B
(S 28th Street)
(7th Street S)
TENTATIVELY SELECTED PLAN:
Meets all study objectives and is consistent with Corps policy
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 8 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 8
TENTATIVELY SELECTED PLAN (TSP)
7th Street S
S 28th Street
2.6 Miles
10-foot dune and beach profile extension
11-year average nourishment interval Borrow Area 7 miles offshore
320,000 cubic yards per average nourishment
50-year period of Federal participation
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 9 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 9
ENGINEERING ASPECTS 10-foot seaward extension of the dune and beach profile in Reach C
HIGH TIDE
LOW TIDE
25
20
15
10
5
0
-5
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 10 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 10
TYPICAL PROFILE FOR TSP – REACH C, DUNE H
DISTANCE FROM R-MONUMENT (FT)
ELEV
ATIO
N (F
T-N
AV
D88
)
100 200 300 400 150 250 350
Existing
10-Foot Dune Extension Construction Template
TENTATIVELY SELECTED PLAN (TSP) CONCEPTUAL RENDERING
Existing Condition Location: FDOT seawall
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 11 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 11
Restored dunes and equilibrated
beach profile
COST ASPECTS Initial Construction: $14,127,000
Periodic Nourishments (4 events): $7,357,000 Total Project Cost: $43,465,000 over 50 years
Federal Cost (65%) Non-Federal Cost (35%) $9,182,550 $4,944,450
Federal Cost (50%) Non-Federal Cost (50%) $3,678,500 $3,678,500
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 12 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 12
ENVIRONMENTAL ASPECTS Dune extension will be vegetated with native plants to
stabilize the dune and promote wildlife usage Nesting habitat Food source Biodiversity
Hardbottom resources are outside of borrow and sand placement areas– no impacts to occur
No effect to cultural resources
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 13 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 13
The Tentatively Selected Plan (TSP) meets the objective to reduce damages caused by coastal erosion, is environmentally acceptable, and has been formulated according to Corps Policy:
TSP SUMMARY
Benefit Cost Ratio: 1.83
Maximizes net benefits for storm damage reduction
Maintains environmental quality and is environmentally favorable compared to the FWOP condition
Maintains recreational opportunities
Maintains evacuation route
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 14 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 14
Problem Identification
Reconnaissance Study
Feasibility Study
Pre-construction, Engineering,
& Design
Project Authorization & Appropriations
Project Construction
2002 2014
2016* 2017*
*
SCHEDULE AND NEXT STEPS
COMPLETED 2004
COMPLETED CURRENT STATUS
Subject to Future Federal Funding
2015*
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 15 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 15
HOW TO PROVIDE COMMENTS Mail to: U.S. Army Corps of Engineers, Jacksonville District ATTN: Kathleen McConnell (CESAJ-PD-EC) 701 San Marco Boulevard, Jacksonville, FL 32207 E-mail to: [email protected] Comment cards may be turned in tonight Public comment period ends on February 18, 2014
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 16 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 16
POSTERS STATIONS
Study Overview Environmental Economics Engineering Beach Basics
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 17 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 17
THANK YOU
BUILDING STRONG® US ARMY CORPS OF ENGINEERS | Jacksonville District BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 18 BUILDING STRONG® U.S. ARMY CORPS OF ENGINEERS | Jacksonville District 18
2 Minute Timer
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