PROJECT AUTHORIZATION FOR

Terminal 18 Dock Rehabilitation

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5C Presentation

Project Authorization

Terminal 18 Dock Rehabilitation

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As referenced in NWSA Resolution No. 2015-06, Exhibit A,

Delegation of Authority Master Policy, Paragraph 8.b.iii., states

project costs exceeding $300,000 require approval from Managing

Members.

Request project authorization in the amount of $200,000, for a

total authorized amount of $350,000, for the T18 Dock

Rehabilitation, Master Identification No. C800600.

Background

Terminal 18 Dock Rehabilitation

• 1969 Terminal 18 container terminal operations begin

• 2002 Terminal 18 upgraded to 196-acre international container

terminal

• 2011 Completed Terminal 18 comprehensive dock inspection

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Background Terminal 18 Dock RehabilitationProject Location – North Harbor

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Terminal 18

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Background

Terminal 18 Concrete Dock Inspections

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Dock Conditions at T18

• Delayed Ettringite Formation (DEF) in Concrete Piles

• Toe Wall Gaps and Failed Cathodic Protection

• Pile Cap and Deck Panel Deterioration (future dock

rehabilitation project)

Background

Terminal 18 Dock Rehabilitation

Background

Terminal 18 Dock RehabilitationConcrete

Steel reinforcing bars

Typical concrete cracking

DEF expansion and cracking

DEF is Delayed Ettringite Formation. Ettringite crystals form some number of years after the concrete is cast. They break up the concrete as they grow and significantly decrease the concrete’s structural integrity.

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DEF in Concrete Piles

Project Description and Details

Terminal 18 Dock Rehabilitation

DEF Conditions at T18• 2011 pile inspections confirmed

DEF in 40 piles

• Project design will preserve piles

wherever possible

• Piles with advanced DEF will be

replaced

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Toe Wall Conditions• Inspections found gaps along toe wall and areas with corrosion of steel• Project will eliminate gaps and install cathodic protection

Project Description and Details

Terminal 18 Dock Rehabilitation

Paving

Soil

Seawall

Slope

Slope Armor

Toe Wall

Dock Apron

Structural Piles Pile Cap Beam

Fender System

Crane Rail

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Project Schedule

Terminal 18 Dock Rehabilitation

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Activity Timeframe

Advertise Bids June 2017

Bid Opening July 2017

Contract Award August 2017

Contract Completion December 2017

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Source of Funds

Terminal 18 Dock Rehabilitation

• The estimated cost of the Design, Permits, and Construction

for this project is $1,639,000.

• The estimated budget for this project is $1,639,000.

• The 2017-2021 Capital Investment Plan allocates $1,639,000 for

this project.

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Financial Summary

Terminal 18 Dock Rehabilitation

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Budget Estimate Cost to Date Remaining Cost

DESIGN $339,000 $139,000 $200,000

CONSTRUCTION $1,300,000 $0 $1,300,000

$1,639,000 $139,000 $1,500,000

Item

PROJECT TOTAL

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Environmental Impacts/Review

Terminal 18 Dock Rehabilitation

• Permitting: The project as currently configured would be covered

under the Port of Seattle’s programmatic piling permit. The

programmatic permit contains construction conditions to protect the

environment that will be included as part of the construction

specifications and bid conditions.

• Water Quality: Conditions include protection of water quality by

minimizing the amount of material that will enter the water.

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Conclusion

Terminal 18 Dock Rehabilitation

Request project authorization in the amount of $200,000, for a

total authorized amount of $350,000, for the T18 Dock

Rehabilitation, Master Identification No. C800600

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