Northgate Link Extension Briefing Citizen Oversight Panel 3/21/2019 - - PowerPoint PPT Presentation

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Northgate Link Extension Briefing Citizen Oversight Panel 3/21/2019 - - PowerPoint PPT Presentation

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Northgate Link Extension Briefing Citizen Oversight Panel 3/21/2019 Project Overview 4.3 mile extension from UW to Northgate 3 light rail stations Fast and reliable service in congested I-5 corridor (14 minutes from Northgate to

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Northgate Link Extension Briefing

Citizen Oversight Panel

3/21/2019

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  • 4.3 mile extension from UW to Northgate
  • 3 light rail stations
  • Fast and reliable service in congested I-5 corridor

(14 minutes from Northgate to Downtown)

  • Estimated over 60,000 weekday boardings

(2030)

  • Serves academic facilities (North Seattle College,

Roosevelt High School and UW)

  • Serves active business districts at Northgate,

Roosevelt and U District

  • TOD projects are moving ahead at all three

station sites

Project Overview

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Financial Snapshot Millions

Project Baseline Budget Committed Incurred

Financials as of February 2019

  • Received TIFIA loan for $615 million
  • Estimated cost to complete shows potential surplus of
  • approx. $52 million

Project Budget

$1,899 $1,647 (87%) $1,383 (73%)

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  • Revenue service

scheduled for September 2021

  • Project-wide schedule

float remains at about 5 months

Project Schedule

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Project Alignment

N

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Northgate Station, Guideway, Garage

Contract Overview:

  • Design-Bid-Build contract with Absher

Construction

  • Scope of Work: 0.7 mile elevated guideway,

elevated station, 450-stall parking garage

  • Contract Amount: $185m
  • Construction Start: October 18, 2016
  • Scheduled Completion: Q1 2020
  • Construction 73% Complete
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Northgate Station, Guideway, Garage

Garage Successfully Opened November 19, 2018

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Northgate Station, Guideway, Garage

Elevated Guideway Tail Track Looking North Station Plaza and Mezzanine Levels

Near Term Project Focuses:

  • Coordinated Installation with Systems Contractor
  • Station Mechanical, Electrical, Architectural
  • Traction Power and Signal House Foundation Turnover
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Project Alignment

N

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Roosevelt Station

Contract Overview:

  • GCCM contract with Hoffman Construction
  • Scope of Work: 90-ft deep, 400-ft long, 4-level

underground station; 2 head houses

  • Contract Amount: $158m
  • Construction Start: February 2017
  • Scheduled Completion: Q4 2019
  • Construction 70% Complete
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Roosevelt Station

Architectural Rendering Looking NW Actual Progress Photo Looking NW

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Roosevelt Station

Escalator Installation North Headhouse Roof Looking South

Near Term Project Focuses:

  • Coordinated Installation with Systems Contractor
  • Start of Mechanical/Electrical Commissioning
  • Architectural Features
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Project Alignment

N

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U District Station

Contract Overview:

  • GCCM contract with Hoffman Construction
  • Scope of Work: 80-ft deep, 400-ft long, 4-level

underground station; 2 head houses

  • Contract Amount: $161m
  • Construction Start: July 2017
  • Scheduled Completion: Q1 2020
  • Construction 53% Complete
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U District Station

South Head House Structure Looking South

Near Term Project Focuses:

  • Coordinated Installation with Systems Contractor
  • Additional Platform-Mezzanine Public Staircase
  • Fire Alarm and Controls work to support IDS Cutover

SB Trackway at Platform Looking North

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Trackwork

Contract Overview:

  • DBB contract with Stacy and Witbeck
  • Scope of Work: Trackwork (plinth + rail) for

alignment; 5 Hz & 16 Hz floating slabs

  • Contract Amount: $75m
  • Construction Start: August 2016
  • Scheduled Completion: Q4 2019
  • Construction 83% complete
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Systems Installation

Contract Overview:

  • Heavy Civil GC/CM contract with

Mass Electric (MEC)

  • Scope of Work: Traction Power,

Communications, Signaling

  • Contract Amount: $103.7m
  • Construction Start: Q2 2018
  • Scheduled Completion: Q4 2020
  • Construction 26% complete

Equipment Testing at Roosevelt Station Power Cable Installation at UDS

Near Term Project Focuses:

  • Station Access for Equipment Installation
  • Emergency Ventilation System Communication Fiber Installation
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Contract Summary, Labor Force, S/DBE

Contract Summary

 11 Major contracts awarded $1.24 billion Construction completed to date: 77%

Labor Force

Total Labor Hours Worked 4.2 million  People of Color 31.5%  Females 9.1%  Apprentices 13.1%

Small/Disadvantaged Businesses (S/D BE)

 SBE Goal: 8% Actual to-date 16.3%  DBE Goal: 4% Actual to-date 9.3%

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Top Risks – Northgate Link

  • Coordination of multiple contract interfaces to complete start-up, commissioning

and rail activation

  • Shortage of skilled labor and staff – both contractors and internal staff
  • Third party approvals – City of Seattle, King County, WSDOT, UW
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Thank you.

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