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

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 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 03/23/2009 1

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 • Concrete Decking C Concrete Decking C t t D D ki ki • Traffic Switch to East Side Traffic Switch to East Side th St. and 72 nd St. Shaft Site work at 69 th St. and 72 nd • Shaft Site work at 69 St. • Upcoming Work Upcoming Work Upcoming Work Upcoming Work 03/23/2009 2

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

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

03/23/2009 5 Location of Secant Walls Portion Currently Portion Currently Being Installed Portions Completely Installed SECANT WALL

Secant Pile Wall Construction- 91 st to 93 rd St. 03/23/2009 6

Secant Pile Wall Construction- 91 st to 93 rd St. 03/23/2009 7

Launch Box Update p Slurry Wall Construction Slurry Wall Construction Betw een 93 rd and 95 th Street 03/23/2009 8

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

Location for Slurry w alls y Portion Completely Installed CANT WALL SLURRY WALL Portion Being I Installed Currently t ll d C tl NORTH 03/23/2009 10

Building 03/23/2009 11 Future 2 nd Avenue Subway 2 nd Avenue Looking North Slurry Wall Work Building

03/23/2009 12 Slurry Wall – Guide Wall

03/23/2009 13 Slurry Wall – Panel Excavation

03/23/2009 14 New Fence Panels to Protect Pedestrians Slurry Wall

03/23/2009 15 Installation of Rebar Cages Slurry Wall

03/23/2009 16 Launch Box Update Concrete Decking Plan Concrete Decking Plan Concrete Decking Plan Concrete Decking Plan

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

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 West Side Concrete Deck Panels are Installed All W Sid C D k P l I ll d • Continuing Utility Relocation & Work Under Concrete Decking 03/23/2009 18

Concrete Decking Construction Looking South on Second Avenue 03/23/2009 19

Concrete Decking Construction Looking East on Second Avenue-MTA installed Rubber Noise Reduction Pads 03/23/2009 20

Concrete Decking Construction Looking from Top of 2 nd Avenue 03/23/2009 21

03/23/2009 22 Launch Box Update Traffic Switch to Traffic Switch to Traffic Switch to Traffic Switch to East Side East Side

Traffic Sw itch to East Side • Switched Switched T Traffic to Traffic to T ffi ffi t t East Side East Side on on on on 03/10/2009 03/10/2009 03/23/2009 23

Shaft Site work at 69 th Shaft Site work at 69 th th th Shaft Site work at 69 Shaft Site work at 69 nd St St and 72 nd St and 72 St. and 72 St. and 72 St St. St. 03/23/2009 24

th St. and 72 nd St. Shaft Site work at 69 th St. and 72 nd Shaft Site work at 69 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 • Continuing Utility Relocation on East Side 03/23/2009 25

03/23/2009 26 73 rd St. Shaft Area Overall MPT Plan 72 nd St. 71 st St. 70 th St. 69 th St.

03/23/2009 27 69 th St. Shaft Section St. Shaft Section 69

03/23/2009 28 Construction of New Traffic Lane on West Side West Side

03/23/2009 29 Utilities Relocation Work At Shafts

03/23/2009 30 Utilities Relocation Work At Shafts

Shaft Area Bus Stop Relocation Removed Bus Stops between 69 th St. and 70 th St. and between 71 st St. and 72 nd St. New Bus Stop Between 70 th St. and 71 st St. has been Established 03/23/2009 31

69th Street Garbage Disposal Plan Designated Garbage Disposal Areas 69 th Street Garbage Disposal Plan has been C Coordinated with Community and Implemented di t d ith C it d I l t d 03/23/2009 32

72 nd Street Garbage Disposal Plan 72 nd Street Garbage Disposal Plan has been Coordinated with Community and Implemented Coordinated with Community and Implemented 03/23/2009 33

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

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 The Blasting Plans Are now Under Review and Must be Approved by NY City, Bl ti Pl A U d R i d M t b A d b NY Cit 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

Upcoming Work Shaft Area 69 th Street to 72 nd 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

03/23/2009 37

Second Avenue Subway Project Community Board 8 y March 23 rd , 2009 March 27th, 2007

PROJECT SCHEDULE FOR 2009 PROJECT SCHEDULE FOR 2009 � DESIGN • 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 > Duration: 43 Months from April 2009 > D ti 43 M th f A il 2009 • Contact 5A: 86 th Street Station - Open Cuts & Utilities Relocation > D > Duration: 22 Months from June 2009 ti 22 M th f J 2009

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 92 nd S 96 th S 93 rd S 94 th S 95 th S 97 th S Existing Tunnel g Connection Contract 2A: Site Work and Heavy Civil Ongoing Construction for TBM l launch Box (Contract 1) h B (C t t 1) Contract 2A: 96th Street Station - Site Work & Heavy Civil > Duration: 43 Months from April 2009

Contract 5A – Work Zone Lay out Plan West Side Stage of 2 nd Avenue treet treet reet Work Zone Work Zone 83 rd Str 85 th St 87 th St 2 nd Avenue 88 th Street 82 nd Street 84 th Street 86 th Street 85 th Street East Side Stage 87 th Street 83 rd Street of 2 nd Avenue Work Zone Work Zone 2 nd Avenue Street Street Street Street 82 nd S 86 th S 88 th S 84 th S Contact 5A: 86 th Street Station - Open Cuts & Utilities Relocation > Duration: 22 Months from June 2009