Second Avenue Subway Second Avenue Subway Construction Progress - - PowerPoint PPT Presentation

▶
second avenue subway second avenue subway construction
SMART_READER_LITE
LIVE PREVIEW

Second Avenue Subway Second Avenue Subway Construction Progress - - PowerPoint PPT Presentation

Jan 01, 2023 29 likes •442 views

Second Avenue Subway Second Avenue Subway Construction Progress Update Construction Progress Update (N (N (November to March) (November to March) b b t t M M h) h) Presented by Presented by Presented by Presented by S3 Tunnel

slide-1
SLIDE 1

Second Avenue Subway Second Avenue Subway Construction 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 Constructors S3 Tunnel Constructors AND AND MTA CAPI TAL CONSTRUCTI ON MTA CAPI TAL CONSTRUCTI ON MTA CAPI TAL CONSTRUCTI ON MTA CAPI TAL CONSTRUCTI ON March 2 3 , 2 0 0 9 March 2 3 , 2 0 0 9

1

03/23/2009

slide-2
SLIDE 2

Topics Covered Topics Covered

  • Progress update (November to March)
  • Launch Box Update

Launch Box Update

  • Secant Wall

Secant Wall Secant Wall Secant Wall

  • Slurry Wall

Slurry Wall C t D ki C t D ki

  • Concrete Decking

Concrete Decking

  • Traffic Switch to East Side

Traffic Switch to East Side

  • Shaft Site work at 69

Shaft Site work at 69th

th St. and 72

  • St. and 72nd

nd St.

St.

  • Upcoming Work

Upcoming Work

03/23/2009 2

Upcoming Work Upcoming Work

slide-3
SLIDE 3

Launch Box Update Launch Box Update Secant Pile Wall Construction Betw een Betw een 91 st and 93 rd Street 91 and 93 Street

03/23/2009 3

slide-4
SLIDE 4

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

  • Secant Wall Construction on West Side Completed
  • Continuing Secant Wall Construction on East Side

g

03/23/2009 4

slide-5
SLIDE 5

Location of Secant Walls

Portions Completely Installed

SECANT WALL

Portion Currently Portion Currently Being Installed

03/23/2009 5

slide-6
SLIDE 6

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

03/23/2009 6

slide-7
SLIDE 7

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

03/23/2009 7

slide-8
SLIDE 8

Launch Box Update p Slurry Wall Construction Slurry Wall Construction Betw een 93 rd and 95 th Street

03/23/2009 8

slide-9
SLIDE 9

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

  • Slurry Wall on West Side Completed
  • Continuing to work on Slurry Wall Construction on

East Side

03/23/2009 9

slide-10
SLIDE 10

Location for Slurry w alls y

Portion Completely Installed CANT WALL SLURRY WALL Portion Being I t ll d C tl NORTH Installed Currently

03/23/2009 10

slide-11
SLIDE 11

Slurry Wall Work

2nd Avenue Looking North Building Building Future 2nd Avenue Subway

03/23/2009 11

slide-12
SLIDE 12

Slurry Wall – Guide Wall

03/23/2009 12

slide-13
SLIDE 13

Slurry Wall – Panel Excavation

03/23/2009 13

slide-14
SLIDE 14

Slurry Wall

New Fence Panels to Protect Pedestrians

03/23/2009 14

slide-15
SLIDE 15

Slurry Wall

Installation of Rebar Cages

03/23/2009 15

slide-16
SLIDE 16

Launch Box Update

Concrete Decking Plan Concrete Decking Plan Concrete Decking Plan Concrete Decking Plan

03/23/2009 16

slide-17
SLIDE 17

Concrete Decking Plan

Profile Looking North on Second Avenue Profile Looking North on Second Avenue

Concrete Deck Panel Cap Beam

Deck Beam

Splice Box (Beam Pocket)

03/23/2009 17

slide-18
SLIDE 18

Concrete Decking Plan

Current Status

  • Cap Beams Are ALL Installed on the West Side

p

  • 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 Under

Concrete Decking

03/23/2009 18

slide-19
SLIDE 19

Concrete Decking Construction

Looking South on Second Avenue

03/23/2009 19

slide-20
SLIDE 20

Concrete Decking Construction

Looking East on Second Avenue-MTA installed Rubber Noise Reduction Pads

03/23/2009 20

slide-21
SLIDE 21

Concrete Decking Construction

Looking from Top of 2nd Avenue

03/23/2009 21

slide-22
SLIDE 22

Launch Box Update

Traffic Switch to Traffic Switch to Traffic Switch to Traffic Switch to East Side East Side

03/23/2009 22

slide-23
SLIDE 23

Traffic Sw itch to East Side

  • Switched

Switched T ffi t T ffi t Traffic to Traffic to East Side East Side

  • n
  • n
  • n
  • n

03/10/2009 03/10/2009

03/23/2009 23

slide-24
SLIDE 24

Shaft Site work at 69 Shaft Site work at 69th

th

Shaft Site work at 69 Shaft Site work at 69th

th

St and 72 St and 72nd

nd St

St

  • St. and 72
  • St. and 72

St. St.

03/23/2009 24

slide-25
SLIDE 25

Shaft Site work at 69 Shaft Site work at 69th

th St. and 72

  • St. and 72nd

nd St.

St. Current Status Current 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

03/23/2009 25

  • Continuing Utility Relocation on East Side
slide-26
SLIDE 26

Shaft Area Overall MPT Plan

72nd St. 71st St. 70th St. 69th St. 73rd St.

03/23/2009 26

slide-27
SLIDE 27

69th St. Shaft Section 69

  • St. Shaft Section

03/23/2009 27

slide-28
SLIDE 28

Construction of New Traffic Lane on West Side West Side

03/23/2009 28

slide-29
SLIDE 29

Utilities Relocation Work At Shafts

03/23/2009 29

slide-30
SLIDE 30

Utilities Relocation Work At Shafts

03/23/2009 30

slide-31
SLIDE 31

Shaft Area Bus Stop Relocation

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

03/23/2009 31

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

slide-32
SLIDE 32

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

03/23/2009 32

Coordinated with Community and Implemented

slide-33
SLIDE 33

72 nd Street Garbage Disposal Plan

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

03/23/2009 33

Coordinated with Community and Implemented

slide-34
SLIDE 34

Upcoming Work

Launch Box:

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

Continue 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

03/23/2009 34

slide-35
SLIDE 35

Controlled Rock Blasting and Removal Controlled Rock Blasting and Removal

  • The MTA has Performed Building Inspections Before Construction Started.
  • The Buildings have Again been Inspected by Monitoring / Engineering

The 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 Area the Blast Area.

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

03/23/2009 35

slide-36
SLIDE 36

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.

03/23/2009 36

slide-37
SLIDE 37

03/23/2009 37

slide-38
SLIDE 38

Second Avenue Subway Project

Community Board 8 y

March 23rd, 2009

March 27th, 2007

slide-39
SLIDE 39

PROJECT SCHEDULE FOR 2009

DESIGN

PROJECT SCHEDULE FOR 2009

  • Final Design is scheduled to be completed in December 2009

PROCUREMENT IN 2009 PROCUREMENT 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: 86 th Street Station - Open Cuts & Utilities Relocation

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

slide-40
SLIDE 40

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

Street Street Street Street Street Street 96th S 94th S 93rd S 95th S 97th S 92nd S

Existing Tunnel g Connection

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

slide-41
SLIDE 41

Contract 5A – Work Zone Lay out Plan

treet treet reet West Side Stage

  • f 2 nd Avenue

Work Zone Work Zone 85th St 87th St 83rd Str

2nd Avenue

84th Street 86th Street 88th Street 82nd Street 85th Street 87th Street 83rd Street East Side Stage

  • f 2 nd Avenue

Work Zone Work Zone Street Street Street Street

2nd Avenue

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

84th S 86th S 88th S 82nd S