DREDGING YOUR DOCKS 2014
Organized By
CRA Hydrographic Surveyors
Orion Marine Group
DREDGING YOUR DOCKS 2014
Supported by
USCOE Galveston District
U. S. Coast Guard
Port of Houston
Houston Pilots
Lone Star Harbor Safety Com.
Dredging Cost Presentation
Dredging private dock terminals
Focus on hydraulic dredging
Total project cost to owners
Industry standards & requirements
Dredging Cost
Project Specific
Disposal
Surveys
Permitting
Environmental
External Cost Impacts
•Identifying the scope of work:
• Project location
• Cubic yards of material
• Dredging template
• Over-dredge requirements
• Type of material
•Choosing a Dredge:
•Dredge Size
•Project Specific requirements
•Type of material
•Pumping capacity
•Location
•Schedule
• Selecting A DMPA
• Federal DMPA
• Private DMPA
• Uplands
• Beneficial Use
•Dredge material placement area requirements (DMPA)
•DMPA location
•DMPA Specific requirements
•Pipeline route
•Discharge Point
•Crossings
•Ship Channel – Road
•Levee systems
•Capacity
•Dredge Pipeline Cost
• Distance from Project to DMPA
• Floating, submerged, & land
• Pipeline route
• Discharge Point
• Crossings - Ship Channel – Road
•Dredging Cost Breakdown
•Mobilization / Demobilization
•Pipeline Cost
•Cubic Yard
•Unknowns
• anomalies, debris, & delays
•Disposal Cost
• based on gross yardage
• management fees
• sediment samples
DISPOSAL COST
•DMPA COST
• Disposal Fees
• Deposit & Contract Signing
• Payment of Gross CY dredged
• Sediments Sampling Cost
• Management Fees
• Application – Consulting
DISPOSAL COSTS (per cu/yd.)
$10
$8
$6
$4
$2
$0
2000 2005 2007 2009 2012 2015
FUEL COSTS
$4.00
$3.00
$2.00
$1.00
$0.00
2001
2003
2005
2007
2012
STRUCTURAL STEEL COSTS (per ton.)
$80
$70
$60
$50
$40
$30
$20
$10
$0
2003
2005
2007
2012
Project “A”
Project “A”
Project “A”
Project “B”
Project “B”
Project “B”
PROJECT “A” & “ B”
Project “A”
115,000 cy x 8 days = 14,375 cy per dredging day
Project “B”
13,000 cy x 5 days = 2,600 CY per dredging day
PROJECT “A” & “B”
Overview
Same dredge spread
Pipeline & DMPA
Similar dredge template
Projects shared the mobilization cost
Cost per CY is 5 times for Project “B” than “A”
HYDROGRAPHIC SURVEY
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Pre-Dredge Survey by Contractor
Pre-dredge survey by Third Party
Verify, Quantities, Tide Gauge, & intervals
Verify survey datum and station #’s
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Post dredge survey by Surveyor & Contractor
Post-Dredge Survey review
Pay DMPA & Contractor
Permit Requirements
• TCEQ Water Quality Certification
• USACE Permits
•Regulatory
•Real Estate
• NWP Permits
• DMPA Permits
EXTERNAL COST
• Environmental Impacts
• Economic Development
• Government Requirements
• USACE Regulatory
• USACE Real Estate
• EPA
•TCEQ
• Legal – Jones Act
DREDGING COST SUMARY
•Plan Dredging Activities
•Have Permits in Order
•Piggy Back off USACE
•Share Mobilization Cost with Neighbors
•Coordinate DMPA Contracts Early
“Not all Dredges are Created Equally”
THANK YOU FOR ATTENDING
DREDGING YOUR DOCKS 2014