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Savannah Harbor Expansion Project

 

FINAL GENERAL RE-EVALUATION REPORT FOR
SAVANNAH HARBOR EXPANSION PROJECT
CHATHAM COUNTY, GEORGIA AND JASPER COUNTY, SOUTH CAROLINA
JANUARY 2012

Table of Contents
Items Page No.

CHANGES TO FINAL REPORTS (JULY 2012)

EXECUTIVE SUMMARY 

TABLE OF CONTENTS

 

1 Introduction 1
  1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.5
1.6
Location and Setting
Authorizations
Study Purpose and Scope
Existing Navigation Project
Navigation Channel
Advance maintenance
Turning Basins
Sediment Control Works
Fresh water Control Works
Long Term Management Strategy
Dredged Material Management Plan
Public Involvement
Planning Process and Report Organization

5
5
6
8
8
9
12
14
16
18
18
22
23
2 Prior Studies, Reports, and Existing Water Projects 25
  2.1
2.2
2.3
2.3.1
2.3.2
2.4
2.5
2.6
2.7
Savannah Harbor Deepening Feasibility Report, 1991
Savannah Harbor Deepening Reconnaissance Report, 1996
Savannah Harbor Deepening Feasibility Report (Section 203) and Tier I EIS 1998
Chief's Report on Savannah Harbor Deepening Feasibility Study (Section 203)
Record of Decision on Savannah Harbor Deepening Feasibility Study (Section 203)
Savannah Harbor Dredged Material Management Plan-2011 Annual Work Plan
Environmental Improvement (Section 1135 Study)
Savannah Harbor Long Term Management Strategy
Lower Savannah River Basin Environmental Restoration Project
25
25
25
26
26
27
29
29
31
3 Problems and Opportunities 31
  3.1
3.2
Problems
Opportunities
31
32
4 Inventory of Existing Conditions 32
  4.1
4.2
4.3
4.4
4.4.1
4.4.2
4.5
4.5.1
4.6
4.7
4.8
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.8.6
4.8.7
4.8.8
4.9
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
Overview of Existing Navigation Resources
Existing Container Ship Industry Operations
Existing World Container Ship Fleet
Existing Savannah Harbor Operations
Garden City Terminal Infrastructure and Operations
Regional Landside Transportation Infrastructure
Existing Garden City Terminal Cargo
Hinterland and Regional Distribution Centers
Existing Garden City Terminal Vessel Operations
Existing Socio-Economic Profile
Existing Environmental Resources
Geology and Sediments
Water Resources
Air Quality
Marine and Estuarine Resources
Terrestrial Resources
Wetlands
Special Status Species and Resource Areas
Recreational Resources
Existing Conditions: Cultural Resources
The Wreck of CSS Georgia
Fort Pulaski National Monument (GA)
Fort James Jackson National Historic Landmark (GA)
Savannah National Historic Landmark District (GA)
Savannah River Civil War Cribs

33
34
37
40
42
43
44
46
46
49
50
50
51
53
53
54
56
56
56
57
58
59
59
59
60
5 Forecast of Without-Project Conditions 60
  5.1
5.2
5.3
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.6
5.7
5.7.1
5.7.2
5.7.3
5.7.4
5.8
Panama Canal: Deepening Existing Locks (2010) and Expansion (2014)
US East Coast and Gulf Coast Port Configurations and Capacities
Garden City Terminal Infrastructure and Capacity
Containerized International Trade Projections
Commodity Forecast Baseline: Garden City Terminal
2008 Savannah Harbor Tonnage Forecast
2010 Updated Savannah Harbor Tonnage Forecast
Final Savannah Harbor Commodity Tonnage Forecast
Commodity Forecast: Garden City Terminal TEUs
International Container Ship Fleet
World Fleet
Savannah Harbor Fleet
Load Factor Analysis
Savannah Harbor Fleet Projections
Without-project Conditions: Socio-Economic Profile
Without-project Conditions: Environmental Resources
Population Growth and Associated Development
Sea Level Rise
Environmental Regulations
Environmental Management
Without-Project Conditions: Study Area Cultural Resources
60
61
64
65
68
71
72
74
76
77
77
78
82
85
89
90
90
91
92
93
93
6 Formulation of Alternative Plans 94
  6.1
6.2
6.3
6.4
6.5
6.5.1
6.6
6.6.1
6.6.2
6.7
6.8
6.8.1
6.8.2
6.8.3
6.8.4
6.9
6.10
6.10.1
6.10.2
6.10.3
6.10.4
6.11
6.12
6.12.1
6.12.2
Planning Goals
Project Objectives
Planning Constraints
Plan Formulation Criteria
Management Measures
Preliminary Screening of Management Measures
Evaluation of Alternative Non-structural Measures
Reduce Underkeel Clearance Requirement
Modification of Garden City Terminal
Evaluation of Alternative Structural Measures
Alternative Terminal Locations
Alternative Terminal Locations: Transportation Cost Differences
Alternative Terminal Locations: Criteria Evaluation
Alternative Terminal Locations: Cost Evaluation
Alternative Terminal Locations: Summary Assessment
Development of a Regional Southeastern US Container Port
Other Channel Modifications (Structural Alternatives)
Meeting Areas
Bend Wideners
Straightening of the River
Turning Basin Expansion
Development of Alternative Plans
Description of Alternative Plans
Plan A – No Action
Plan B – Channel Deepening Alternatives
94
95
96
96
99
102
104
104
106
107
111
111
112
116
117
119
121
121
123
123
123
122
126
126
126
7 Alternative Plan Evaluation: Benefits 128
  7.1
7.2
7.2.1
7.2.2
7.2.3
7.3
Transportation Cost Savings Model Benefits
Meeting Area and Tide Delay Benefits
Meeting Area Benefits
Tide Delay Reduction Benefits
Cumulative Benefits – Meeting Area and Tide Delay Reduction
Total Average Annual Equivalent Project Benefits
129
132
132
135
137
137
8 Alternative Plan Evaluation: Environmental Impacts 138
  8.1
8.1.1
8.1.2
8.1.3
8.2
8.2.1
8.2.2
8.2.3

Impact Avoidance
Modified Channel Design
Dredged Material Placement Location Selection
Dredged Material Placement Technique Selection
Impact Assessment
Groundwater Impacts
Erosion Impacts
Air Quality Impacts
139
139
141
141
142
150
151
152
9 Alternative Plan Evaluation: Mitigation Planning 153
  9.1
9.2
9.2.1
9.2.2
9.3
9.4
9.4.1
9.5
9.6
9.6.2
9.7
9.8

Mitigation Measure Identification
Marsh Mitigation Plan Development
Identification of Lands to be Acquired
Salt Water and Brackish Wetland Compensation
Dissolved Oxygen Mitigation Plan Development
Shortnose Sturgeon Mitigation Plan Development
Striped Bass Mitigation Plan Development
Chloride Mitigation Plan Development
Chlorida Impacts to Savannah's Municipal and Industrial Water Treatment Plant
Mitigation for Impacts at City of Savannah's Water Treatment Plant
Secondary Impacts
Cummulative Impacts

153
154
164
165
167
170
172
174
174
177
181
181

10 Alternative Plan Evaluation: Costs 182
  10.1
10.2
10.2.1
10.2.2
10.3
10.3.1
10.3.2
10.3.3
10.3.4
10.3.5
10.3.6
10.3.7
10.4
Identification of Alternative Plan Elements
Detailed Descriptions of Alternative Plans
Shared Plan Elements
Incremental Project Elements
Alternative Plan Costs
Construction Cost Narrative
Incremental Dredging-Related Costs
Incremental Mitigation Costs
Total Incremental Construction Costs
Interest During Construction
Operations and Maintenance Costs
Total Average Annual Equivalent Costs
Value Engineering Analysis
182
183
183
185
187
187
191
192
193
193
194
195
195
11 Plan Selection 198
  11.1
11.2
11.3
Net Benefits of Alternative Plans
NED Plan Identification
Summary of Accounts and Plan Comparison
198
199
200
12 Uncertainty Considerations 224
  12.1
12.1.1
12.1.2
12.2
12.3
12.3.1
12.3.2
12.3.3
12.3.4
12.3.5
12.3.6
12.4
Economic Analysis Uncertainty
Jasper County Terminal Sensitivity Analysis
Alternative Sensitivity Analyses
Cost Risk Analysis
Environmental Impact and Mitigation Uncertainty
Uncertainty in Salinity Predictions
Risk with Salinity Predictions
Uncertainty in Dissolved Oxygen Predictions
Risk with Dissolved Oxygen Predictions
Uncertainty in Biological Responses
Risk in Biological Responses
Risk in Sea Level Change Assumptions
224
224
229
235
236
237
237
237
238
238
239
239
13 Public Involvement, Review, and Consultation 240
  13.1
13.2
13.3
13.4
13.5
13.6

Public Involvement Program
USACE Environmental Operating Principles
Application of USACE 12 Actions for Change
Scoping and Draft EIS
Agency and Public Coordination
Summary of Comments on November 2010 Draft GRR and Draft EIS
240
242
244
248
249
250
14 Selected Plan 254
  14.1
14.2
14.2.1
14.3
14.4
14.4.1
Environmental Effects
Mitigation Details
Mitigation Costs
Plan Construction
Operation and Maintenance
Advance Maintenance
258
259
261
262
267
268
15 Plan Implementation Requirements 268
  15.1
15.2
15.3
15.4
15.5

Section 902 Cost Limitation
Cost Sharing
Financial Analysis of Non-Federal Sponsor’s Capabilities
Land Requirements
Non-Federal Sponsor's Responsibilities
268
280
285
285
286
16 Conclusions 289
17 District Engineers' Recommendation 297
LIST OF APPENDICES
Appendix A: Economics, Including Attachments  
  Attachment 1:
Attachment 2:
Attachment 3:
Attachment 4:
Attachment 5:

Attachment 6:

Carrier Letters 

Transportation Cost Savings Model Flow Chart

Certification Documentation for Use of HarborSym

GEC Multiport Analysis for the Savannah Harbor Expansion Project

GEC Savannah Harbor Expansion Project Deep Draft Channel Improvements Economics Analysis: Commodity Projections Parts 1-4


GEC Regional Port Analysis

 
Appendix B: Real Estate  
Appendix C: Engineering   
  Attachment 1:
Attachment 2:
Attachment 3:
Attachment 4:

Channel Improvement Design Drawings 

Cost Estimates

SHEP Supplemental Studies

Cost Risk Analysis 

 
Appendix D: Plan Formulation   
Appendix E: Quality Control