Draft Integrated General Reevaluation Report II and Supplemental ...

More documents

Recommendations

Info

To follow through with the intent of the original study authorization it wasdetermined by USACE that further study was needed. The feasibility costsharing agreement (FCSA) for this study was signed in 2006.The President of the United States issued a “We Can’t Wait Initiative” on July 19,2012. This initiative included expediting the study for Jacksonville Harbor. Theresult was a reduction in the study schedule by 14 months.Alternative Plans: The Jacksonville Harbor federal navigation projectencompasses approximately 20 river miles from the mouth of the St. JohnsRiver at Mayport to the Talleyrand terminal near downtown Jacksonville (Figure1). The current authorized channel depth is 40 ft for the main channel and 38 feetfor the West Blout Island Channel. For planning purposes, the project wasevaluated in segments (reaches). Segment 1 was originally from the entrancechannel to approximately river mile 14 (Dames Point), it was later reduced toapproximately river mile 13. Segments 2 and 3 include additional reachesbetween Dames Point and Talleyrand and the West Blount Island Channel (cutsF&G).Ship simulation modeling was conducted to determine changes in the projectarea footprint required for the larger vessels to maneuver in the channel. identifynavigation problems and measures required to improve navigation in the harbor.The design vessel was the Maersk S-Class which has vessel dimensions ofmaximum draft of 48 feet, beam of 141 feet, and length of 1,139 feet. After initialevaluation and with concurrence of the non-federal sponsor, Segments 2 and 3were eliminated because it was determined that the majority of benefiting vesselstransit Segment 1. Multiple channel deepening and widening measures andturning basins were combined into alternative plans. The following alternativeplans and combinations were evaluated:• No action;• Deepening Alternatives: Depths between 41 and 50 feet were evaluated;• Widening Alternatives: Widening areas at the Turning Wall Reach and St.Johns Bluff Reach were evaluated, successful meeting in these areas wasshown in ship simulation, in combination with deepening alternatives. Astand-alone widening alternative was also evaluated;• Turning Basins: Turning Basins at Blount Island and Brills Cut wereevaluated in combination with deepening and widening alternatives;• Non-Structural Alternatives: Non-structural measures considered includeadditional tug assists and using high tide conditions to allow deeper draftvessels to transit the harbor.iv
FIGURE 1: JACKSONVILLE HARBOR STUDY SEGMENTSThe National Economic Development Plan (NED) and the Recommended Plan:Based on an evaluation of alternative plan costs and economic benefits, the NEDplan includes a channel depth of 45 feet depth with associated widening andturning basins. This is the depth at which net benefits (benefits minus costs) aregreatest. The benefit-to-cost ratio (BCR) for the NED plan is 1.85:1 (Table 1).The non-federal sponsor, the Jacksonville Port Authority (JAXPORT),subsequently requested a locally preferred plan (LPP) of 47 feet with associatedwidening and turning basins. The LPP has positive net benefits and iseconomically justified (BCR is 1.42:1). In accordance with USACE policy, theLPP was submitted for consideration to the Assistant Secretary of the Army forCivil Works (ASA-CW) and approved for consideration as the recommended planon May 17, 2013.The recommended plan (preferred alternative) is the locally preferred plan (LPP).The recommended plan includes deepening the federal channel to 47 feet fromthe entrance channel to approximately river mile 13, two areas of widening at theTraining Wall Reach and St. Johns Bluff Reach, and two Turning Basins atBlount Island and Brills Cut (Figure 2).FIGURE 2: RECOMMENDED PLANv
Page 1 and 2: JACKSONVILLE HARBOR NAVIGATION STUD
Page 3: EXECUTIVE SUMMARY INTEGRATED GENERA
Page 7 and 8: Coordination with Agencies and the
Page 9 and 10: DRAFTINTEGRATED GENERAL REEVALUATIO
Page 11 and 12: 4.6 DECISIONS TO BE MADE...........
Page 13 and 14: 7.3.12 Invasive and Exotic Species
Page 15 and 16: APPENDICES APPENDIX A - ENGINEERING
Page 17 and 18: Table 37: Cost Sharing Table NED Pl
Page 19 and 20: Figure 33: View of typical altitude
Page 21 and 22: 1.0 STUDY INFORMATION*1.1 INTRODUCT
Page 23 and 24: 1.5 HISTORY OF THE INVESTIGATIONThe
Page 25 and 26: study was needed for authorization
Page 27 and 28: 1.7 PLANNING PROCESS AND REPORT ORG
Page 29 and 30: The local watersheds of the LSJR en
Page 31 and 32: River MileMiles · App'Jios to both
Page 33 and 34: Basin Name- Lower St. Johns River-
Page 35 and 36: 2.2.3 Tides and SalinityThe St. Joh
Page 37 and 38: 2.2.4 Currents Affecting Navigation
Page 39 and 40: 2.2.5 Sea Level RiseThroughout geol
Page 41 and 42: groundwater (Sucsy et al., 2012; SJ
Page 43 and 44: to applicable standards for the mai
Page 45 and 46: Restoration Strategy” in May 2003
Page 47 and 48: LegendProject CenterlineC.: Origina
Page 49 and 50: LegendProject Centerlinelimucuan Pr
Page 51 and 52: Preserve. An ongoing priority of th
Page 53 and 54: available at http://www.coj.net/dep
Page 55 and 56:
the Federal Insecticide, Fungicide,
Page 57 and 58:
From the early Colonial period onwa
Page 59 and 60:
•Retail trade - 12.3%;•Transpor
Page 61 and 62:
ecognized populations or management
Page 63 and 64:
2.3.2.3 Wood StorkWood storks (Myct
Page 65 and 66:
FIGURE 13: WOOD STORK NESTING COLON
Page 67 and 68:
loggerheads. All three takes occurr
Page 69 and 70:
and the number of nests across the
Page 71 and 72:
waters (20 m) of the continental sh
Page 73 and 74:
FIGURE 14: NORTH ATLANTIC RIGHT WHA
Page 75 and 76:
2.3.3 Essential Fish HabitatThe pro
Page 77 and 78:
Table 10: Prey species that May Occ
Page 79 and 80:
Dial Cordy (2011) described the est
Page 81 and 82:
*(adapted from American Society of
Page 83 and 84:
Table 13: Records of Bird Species f
Page 85 and 86:
2006-20101994 NE Bartram 2006FL 1
Page 87 and 88:
Amphibians and ReptilesSouthern Bla
Page 89 and 90:
2.3.8 Other Wildlife ResourcesFresh
Page 91 and 92:
2.3.10 Submerged Aquatic Vegetation
Page 93 and 94:
the Tamarix spp. (salt cedar) and t
Page 95 and 96:
Common Name Scientific Name Number
Page 97 and 98:
emove air potatoes from several sit
Page 99 and 100:
Table 16: Non-native aquatic specie
Page 101 and 102:
COMMON SCIENTIFIC HABITAT PROBABLE
Page 103 and 104:
COMMON SCIENTIFIC HABITATPROBABLEDA
Page 105 and 106:
2.3.14 RecreationRecreational boat
Page 107 and 108:
Table 17: Port FacilitiesGeneral Na
Page 109 and 110:
Coal, petroleum products, food & fa
Page 111 and 112:
Rotterdam, the Netherlands. MOL ter
Page 113 and 114:
Route GroupFE-ECUS-PAN FE-ECUS-SUEZ
Page 115 and 116:
Total # Calls 2484 2681 2681 2430 2
Page 117 and 118:
compared to those of the City of Ja
Page 119 and 120:
Table 22: Demographic SummaryCensus
Page 121 and 122:
3.0 FUTURE WITHOUT-PROJECT CONDITIO
Page 123 and 124:
The future without project conditio
Page 125 and 126:
• Harbor channel maintenance will
Page 127 and 128:
construction (Knuuti, 2002)). For e
Page 129 and 130:
deepening at time of construction b
Page 131 and 132:
concerns about future expansion of
Page 133 and 134:
2. Develop an alternative that is e
Page 135 and 136:
• Identify the plan that most eff
Page 137 and 138:
In accordance with this policy, alt
Page 139 and 140:
FIGURE 25: STRUCTURAL MEASURES CUTS
Page 141 and 142:
Table 29: Structural Measures elimi
Page 143 and 144:
ERDC ship simulation which took pla
Page 145 and 146:
Table 31: Comparison of Final Array
Page 147 and 148:
5.6.1 Deviation from the NED Plan:
Page 149 and 150:
5.6.1.3 Incremental Costs and Benef
Page 151 and 152:
ALTERNATIVE ENVIRONMENTALFACTOR44-f
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
An interagency assessment team was
Page 159 and 160:
Table 35: Schedule for Construction
Page 161 and 162:
The effect of tides on the river is
Page 163 and 164:
chisels or spuds onto the rock, cau
Page 165 and 166:
FIGURE 27: TYPICAL STEMMED HOLE FOR
Page 167 and 168:
To estimate the maximum poundage of
Page 169 and 170:
FIGURE 31: BLAST ZONE RADII AND EQU
Page 171 and 172:
FIGURE 32: TYPICAL OBSERVER HELICOP
Page 173 and 174:
contractors utilize a small, unconf
Page 175 and 176:
comfort and the potential damage re
Page 177 and 178:
• ideal drill pattern for typical
Page 179 and 180:
ate the technical portion of a cont
Page 181 and 182:
explored during a subsequent Value
Page 183 and 184:
6.6 SUMMARY OF ACCOUNTSAs stated in
Page 185 and 186:
percent Federal responsibility. Tab
Page 187 and 188:
Table 37: Cost Sharing Table NED Pl
Page 189 and 190:
The USACE Environmental Operating P
show all

Draft Integrated General Reevaluation Report II and Supplemental ...

Create successful ePaper yourself

Delete template?

Save as template?