Dulles Corridor Metrorail Project

Phase 1 & Phase 2 Updates

October 11, 2018

Charles W. Stark

Senior Vice President

Phase 1

Expenditures (May thru Aug 2018)

$ 1.2 Million

Total Expenditures (Thru Aug 31, 2018)

$ 2.910 Billion

Forecast at Completion $ 2.982 Billion

Phase 1 Cost Summary

Phase 1 Quarterly Update

• Dulles Transit Partners (Bechtel) Closeout Status

Bechtel’s subcontractor will complete the pipe cleanout and

survey on September 7.

Stainless steel sleeve spot remediation will begin September

10.

Liner remediation will begin once calculations are approved by

VDOT.

MWAA is continuing to remedy the remainder of the deficient

items via the Phase 1 closeout task order contract.

Phase 1 Quarterly Update

• Closeout of VDOT Comprehensive Agreement

There are two categories of work that must be performed:

remediation of remaining VDOT facility deficiency items and the

Old Meadow Road intersection lane widening.

• Task Order Contract Status

Task Orders with Notice To Proceed: 44 issued including Old

Meadow Road Design, 32 complete.

Upcoming activities include: Chain Bridge Road drainage,

Americans with Disabilities Act sidewalk repair, underdrain

remediation, and Dulles Connector Road left shoulder

resolution.

Manhole/structure repair work is underway.

Bus turnout remediation is complete.

Old Meadow Road Schedule

• The final design is nearing completion for the realignment.

Design is continuing from 90%. MWAA is finalizing the design

with the input from the utility companies.

• Utility Issues:

Numerous utility facilities require minor relocation work, but

significant coordination and time effort for management, design

and construction.

11 utility agencies/companies are involved.

• Plans Moving Forward:

Task order contractor managing utility coordination. Traffic study

is complete and under review. Study advises against full closure

based on rush hour loading.

Begin construction in fall 2018 with an estimated completion in

the 4th quarter of 2018.

Survey and Pipe Cleaning Westbound Route 7

Underdrain Repair at McLean Station

Bus Turnouts at Spring Hill Station Before

Bus Turnouts at Spring Hill Station Today

Phase 2

Package A 86% Complete

Package B 87% Complete

Phase 2 Cost Summary

Expenditures (May thru Aug 2018)

$ 116 Million

Total Expenditures (Thru Aug 31, 2018)

$ 1.849 Billion

Forecast at Completion $ 2.778 Billion

Upcoming

• Electricians continue to install train control equipment and pull cable

on the aerial guideway and east at grade guideway following track

installation.

• East Stations – Continue ceiling, electrical and plumbing installation,

escalator and elevator installation. Herndon Garage Stair Tower

installation is ongoing.

• West Stations – Loudoun Gateway and Ashburn elevator and

escalator installation are underway.

• Track – All rail on the east has been installed up to the Phase 1

alignment and has been turned over to the electricians for systems

installation.

• Track – At grade track has been installed west from the aerial

guideway on the Greenway median through Loudoun Gateway

Station and toward the Ashburn Station.

Guideway & Stations

Design-Build Activities

Reston Station Painting and Ceiling Installation

Reston Station Platform Paver Installation

Reston South Precast Retaining Wall Underway

Electricians Installing Power Cables at Traction Power Substation #13

Foundations Underway at Herndon South Stair Tower to Fairfax County Garage

Herndon North Pedestrian Bridge Set to North Pavilion

Installing Ceiling Grid in Dulles Station

Yard Lead Crossover Switch Ready for Systems Installation

Installing Rail in Greenway Median

Setting Rail at Ashburn Station

Electricians Installing and Testing ATC Cables at Horsepen Crossover

Electricians Installing Batteries in Tie Breaker Station #7

WMATA Rail Yard & Maintenance Facility

Design-Build Activities

Current Construction

• Installation of plumbing, electrical work, and HVAC continues

through out the Service and Inspection Building (SIB), Maintenance

of Way Building (MWB), Transportation Building and Warehouse

Building.

• Finishes – Painting, tiling and ceiling work ongoing in the SIB and

MWB office areas.

• Installation of signals, switches and insulated joints for track

construction continues.

• Train control and traction power installation and testing continues.

WMATA Rail Yard & Maintenance Facility

Design-Build Activities

Other Ongoing – Non-Construction Activities

• VDOT has completed Route 606 work, including a new site

entrance at Commerce Court.

• Columbia Gas’ contractor has begun installing the natural gas

line under Route 606.

• Hensel Phelps continues to develop plans for final testing and

acceptance.

• Inspection and testing ongoing.

Underfloor Wheel Lathe in the SIB

Erecting Steel Support Frame for the Stinger System in the SIB

Wheel Truing Pit in the SIB, Underfloor Wheel Lathe in the Background

Car Hoist Jacks Awaiting Installation in the SIB

Storage Yard and MOW Assembly Area from SIB Tower

SIB High Bay Service Area

34

Precast Concrete Precast concrete fabrication issues are at the Herndon,

Reston, Innovation, Loudoun and Ashburn Metrorail

stations.

• Manufactured by Universal Concrete in Stowe, PA

• Air entrainment out of specification

• Water/ cement ratio out of specification

• Potential alkali-silica reactions for aggregates (ASR)

Study Results

• Latest petrographic test results from MWAA and CRC do not

indicate evidence of ASR. Further, silane sealer adds

additional ASR protections.

• Silane sealer application every 10 years will resolve air

entrainment and water/cement ratio issues.

Silane solution to be applied every 10 years for 100-year

durability, funded by Capital Rail Constructors.

• Proposed solution prevents water intrusion

• Will resolve air entrainment issues, water/cement ratio

deficiencies and will prevent alkali-silica reactions

Proposed Solution

Precast Concrete

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