port of long beach 76 foot main channel dredging project · 2017-06-07 · port of long beach 76...
TRANSCRIPT
Port of Long Beach 76 Foot Main Channel Dredging Project
Doug Thiessen, Port of Long Beach (POLB),Al Moro, Chief Harbor Engineer, POLB Emily Ueda, Program Manager, POLB, Janna Watanabe, Environmental Specialist, POLB Jim Fields, U.S. Army Corps of Engineers, Alan Alcorn, Moffatt & Nichol Todd Graham, KPFF, Steve Cappellino, Anchor QEA
Project Goal
• Improve navigation and environmental safety
– Economical sediment remediation (IR Site 7)
• Deepen and widen
turning Basin and Main Channel
• Create Port property for commerce
Project Sites
Disposal Site: Pier G North Slip
Pier G North Slip Fill
Pier G Fill
Catalina Express Terminal Maintenance Dredging
Target Dredge Depths Area A = 4’+2’ OD Area C (west) = 4’+2” OD Area C (east) = 2’+2’ OD
Final Removal Volume Area A = 147,000 CY Area C (west) = 221,000 CY Area C (east) = 134,000 CY Total = 502,000 CY
IR Site 7 West Basin Dredge Areas
IR Site 7 West Basin Dredge Areas
Clamshell Dredge at IR Site -7
IR Site -7 Material in Dump Scow
IR Site -7 Material at Pier G Fill
Phase 2 – Dredging Turning Basin
PIER G
80’ STEELPIPE
SCHEDULE: 4/6/2011 – 4/26/2011 (21 DAYS – 24/7) EQUIPMENT: H.R. MORRIS (CUTTER HEAD) DREDGE POWER: ELECTRIC (from Pier T) DREDGE QUANTITY: 430,000 CY DISPOSE METHOD: PUMP (24” PIPE) PRODUCTION: 17,000 PER DAY
Dike Construction
HR Morris Cutterhead
Channel Dredging
Turning Basin Dredging
Hydraulic Discharge within Fill
Emergent Fill at Pier G
Surcharge Material
• Originally planned to use Western Anchorage sand mine
• Revised to include rolling surcharge using Port supplied crushed miscellaneous base (CMB)
• 2/3 of CMB left on-site for use in developing site
• Excess material used for other Port project (Middle Harbor)
Construction Costs
Engineer’s Cost Estimate: $44M
Area Cost
Fill Area (Wall, Dike, dredging) $15.7 Million
Catalina Express Terminal $0.8 Million
IR Site 7 $11.5 Million
Turning Basin and Channel (50/50 Fed Funded project)
$9.6 Million
Miscellaneous Items $2.2 Million
Total Bid Amount: $39.8 Million
Army Corps of Engineers cost share amount:
$4.8 Million
http://www.polb.com
Questions