Second Avenue SubwaySecond Avenue SubwayyyConstruction Progress Update Construction Progress Update

(N b t M h)(N b t M h)(November to March)(November to March)Presented by Presented by Presented by Presented by S3 Tunnel ConstructorsS3 Tunnel Constructors

ANDANDMTA CAPITAL CONSTRUCTIONMTA CAPITAL CONSTRUCTIONMTA CAPITAL CONSTRUCTIONMTA CAPITAL CONSTRUCTIONMarch 23, 2009March 23, 2009

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03/23/2009

Topics CoveredTopics Covered• Progress update (November to March)•• Launch Box UpdateLaunch Box Update

•• Secant WallSecant WallSecant WallSecant Wall•• Slurry WallSlurry Wall

C t D kiC t D ki•• Concrete DeckingConcrete Decking•• Traffic Switch to East SideTraffic Switch to East Side

•• Shaft Site work at 69Shaft Site work at 69thth St. and 72St. and 72ndnd St.St.•• Upcoming WorkUpcoming Work

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Upcoming WorkUpcoming Work

Launch Box UpdateLaunch Box Update

Secant Pile Wall Construction

BetweenBetween91st and 93rd Street91 and 93 Street

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Secant Pile Wall Construction- 91st to 93rd St.Current Status

• Secant Wall Construction on West Side Completed

• Continuing Secant Wall Construction on East Sideg

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Location of Secant Walls

Portions Completely Installed

SECANT WALL

Portion CurrentlyPortion Currently Being Installed

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Secant Pile Wall Construction- 91st to 93rd St.

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Secant Pile Wall Construction- 91st to 93rd St.

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Launch Box Updatep

Slurry Wall ConstructionSlurry Wall ConstructionBetween

93rd and 95th Street

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Slurry Wall Construction- 93rd to 95th St.Current Status

• Slurry Wall on West Side Completed

• Continuing to work on Slurry Wall Construction onEast Side

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Location for Slurry wallsy

Portion Completely Installed

CANT WALL SLURRY WALL

Portion Being I t ll d C tl

NORTHInstalled Currently

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Slurry Wall Work

2nd Avenue Looking North

Building Building

Future 2nd Avenue Subway

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Slurry Wall – Guide Wall

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Slurry Wall – Panel Excavation

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Slurry WallNew Fence Panels to Protect Pedestrians

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Slurry WallInstallation of Rebar Cages

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Launch Box Update

Concrete Decking PlanConcrete Decking PlanConcrete Decking PlanConcrete Decking Plan

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Concrete Decking PlanProfile Looking North on Second AvenueProfile Looking North on Second Avenue

Concrete Deck PanelCap Beam

Deck Beam Splice Box (Beam Pocket)

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Concrete Decking PlanCurrent Status

• Cap Beams Are ALL Installed on the West Sidep

• All West Side Deck Beams are Installed• All West Side Deck Beams are Installed

All W Sid C D k P l I ll d• All West Side Concrete Deck Panels are Installed

• Continuing Utility Relocation & Work UnderConcrete Decking

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Concrete Decking ConstructionLooking South on Second Avenue

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Concrete Decking ConstructionLooking East on Second Avenue-MTA installed Rubber Noise Reduction Pads

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Concrete Decking ConstructionLooking from Top of 2nd Avenue

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Launch Box Update

Traffic Switch toTraffic Switch toTraffic Switch to Traffic Switch to East SideEast Side

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Traffic Switch to East Side

•• Switched Switched T ffi tT ffi tTraffic to Traffic to East Side East Side ononon on 03/10/200903/10/2009

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Shaft Site work at 69Shaft Site work at 69ththShaft Site work at 69Shaft Site work at 69thth

St and 72St and 72ndnd StStSt. and 72St. and 72 St.St.

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Shaft Site work at 69Shaft Site work at 69thth St. and 72St. and 72ndnd St. St. Current StatusCurrent Status

• Pre Construction Staging and Wok Zone Set up Completed• Pre-Construction Staging and Wok Zone Set-up Completed

• Sidewalk on West Side have been Reduced to 7 Feet

• All Parking Meters have been Removed

• Street Lights and Traffic Signals have been Relocated

• New Traffic Lane on West Side Completed• New Traffic Lane on West Side Completed

• Traffic Shifted to West Side

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25• Continuing Utility Relocation on East Side

Shaft Area Overall MPT Plan

72nd

St.71st St.70th St.69th St. 73rd St.

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69th St. Shaft Section69 St. Shaft Section

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Construction of New Traffic Lane on West Side West Side

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Utilities Relocation Work At Shafts

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Utilities Relocation Work At Shafts

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Shaft Area Bus Stop Relocation

Removed Bus Stops between 69th St. and 70th St. and between 71st St. and 72nd St.

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New Bus Stop Between 70th St. and 71st St. has been Established

69th Street Garbage Disposal Plan

Designated Garbage Disposal Areas

69th Street Garbage Disposal Plan has been C di t d ith C it d I l t d

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Coordinated with Community and Implemented

72nd Street Garbage Disposal Plan

72nd Street Garbage Disposal Plan has been Coordinated with Community and Implemented

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Coordinated with Community and Implemented

Upcoming Work

Launch Box:

• Continue Slurry Wall Construction on East Side

• Continue Secant Wall Construction on East SideContinue Secant Wall Construction on East Side

• Continue placing Deck Beams and Concrete Deck Panels on East Side

• Continue Utility Work Under the Deck on East Side

• Continue Launch Box Excavation

• Controlled Rock Blasting and Removal Preparation

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Controlled Rock Blasting and RemovalControlled Rock Blasting and Removal• The MTA has Performed Building Inspections Before Construction Started.• The Buildings have Again been Inspected by Monitoring / EngineeringThe Buildings have Again been Inspected by Monitoring / Engineering

Consultant Before this work Starts.• Controlled Blasting Work has been Designed and Analyzed by a Specialty

Blasting Consulting Expert.Th Bl ti Pl A U d R i d M t b A d b NY Cit• The Blasting Plans Are now Under Review and Must be Approved by NY City, Fire Department- Explosives Unit.

• NY City Fire Department Permit Will be Issued For All Aspects of This Blasting Work.

• Controlled Blasting and Rock Removal will be performed under a Permit Issued by NY City Dept. of Environmental Protection (DEP)

• The MTA has Installed Blasting Vibration Monitoring Equipment in Buildings at the Blast Areathe Blast Area.

• Controlled Blasting WILL be monitored by NY City-Fire Dept, Explosives Unit.

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Upcoming Work

Shaft Area 69th Street to 72nd Street:Shaft Area 69 Street to 72 Street:

•Start Electric and ECS (Telephone) Utility Relocations.

•Start Gas Main Relocation.

•Start Steam Main Relocation.

•Start Water Main Relocation•Start Water Main Relocation.

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Second Avenue Subway ProjectCommunity Board 8y

March 23rd, 2009

March 27th, 2007

PROJECT SCHEDULE FOR 2009

DESIGN

PROJECT SCHEDULE FOR 2009

• Final Design is scheduled to be completed in December 2009

PROCUREMENT IN 2009PROCUREMENT IN 2009

• Contract 2A: 96th Street Station - Site Work & Heavy Civil

> D ti 43 M th f A il 2009> Duration: 43 Months from April 2009

• Contact 5A: 86th Street Station - Open Cuts & Utilities Relocation

> D ti 22 M th f J 2009> Duration: 22 Months from June 2009

Contract 2A: Scope of WorkContract 2A: Scope of WorkContract 2A: Scope of WorkContract 2A: Scope of Work

Stre

et

Stre

et

Stre

et

Stre

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Stre

et

Stre

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96th

S

94th

S

93rd

S

95th

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97th

S

92nd

S

Existing Tunnel gConnection

Ongoing Construction for TBM l h B (C t t 1)

Contract 2A: Site Work and Heavy Civil

launch Box (Contract 1)

Contract 2A: 96th Street Station - Site Work & Heavy Civil

> Duration: 43 Months from April 2009

Contract 5A – Work Zone Lay out Plan

tree

t

tree

t

reet

West Side Stage of 2nd Avenue

Work ZoneWork Zone

85th

St

87th

St

83rd

Str

2nd Avenue

84th

Stre

et

86th

Stre

et

88th

Stre

et

82nd

Stre

et

85th

Stre

et

87th

Stre

et

83rd

Stre

et

East Side Stage of 2nd Avenue

Work ZoneWork Zone

Stre

et

Stre

et

Stre

et

Stre

et

2nd Avenue

Contact 5A: 86th Street Station - Open Cuts & Utilities Relocation> Duration: 22 Months from June 2009

84th

S

86th

S

88th

S

82nd

S