Second Avenue Subway Project: 96 th Street Station Area Community - - PowerPoint PPT Presentation

Second Avenue Subway Project: 96th Street Station Area

Community Board 11 Public Safety & Transportation Committee Presentation 2/5/2013

Agenda

• 1. Introductions
• 2. Construction News

– Current Progress – Three-Month Look Ahead

• 3. Discussion

1 MTA Capital Construction

• 1. Introductions

MTA Capital Construction 2

• 2. Construction News

MTA Capital Construction 3

Second Avenue Subway – Phase 1

MTA Capital Construction 4 Existing Tunnel (99th to 105th) 92nd Street Launch Box 86th Street station 72nd Street station 96th Street station

Lexington Ave/63rd St. Station

Scope:

• Tunne

unnels f from

• m 92nd

nd St to 63rd rd St

St

• Stations a

s at 96th St, 8 86th St, 7 72nd

nd St and

nd Le Lexingt ngton A

• n Ave/63rd

rd St

St

• Le

Lexingt ngton A

• n Ave/63rd

rd St Subw

ubway Conne

• nnection
• n
• Track &

k & Systems ms from m 105th St to

• Le

Lexingt ngton

• n

Ave/63 63rd

rd St

St

• Ser

ervice bet etwee een 96 96th St & & Br Brook

• oklyn

n via Br Broa

• adw

dway Li Line ne Benefits:

• Relieves Overcrow
• wde

ded d Le Lexingt ngton A

• n Avenue

nue lin line (86th St to

• Grand

nd Cent ntral)

• Connect

cts t s to existing s system (Storag age a e and Mainten enan ance)

• Early us

use of

• f Tunne

unnel S Section

• n

built i in 197 970’s

5 MTA Capital Construction

Site Map – 96th Street Station Area

Current Bus Stops

• SBS Express Stop – 2nd Ave btw 100th and 101st St.

– Permanent Stop to remain in service for duration of C2B project

• Local M15 Stop - 2nd Ave just north of 99th St.

– Temporary Stop to remain in service until further notice

• Local M15 Stop -2nd Ave just north of 101st St.

– Temporary Stop to remain in service until further notice

• Local M15 Stop - 2nd Ave just north of 103rd St.

– Temporary Stop to remain in service until further notice

• Local Cross-town M96 Bus Stop - 96th St, just west of 2nd Ave

– Temporary Stop to remain in service until further notice

MTA Capital Construction 6

96th Street Station Area Bus Map

MTA Capital Construction 7

After *Will be posted along

Second Avenue Subway corridor

8 MTA Capital Construction

Contract 2B Community Hand Out Bilingual English/Spanish

Work Zone – Looking South Pressure Relief Manhole

MTA Capital Construction 9

East side of 2nd Avenue between 105th Street and 106th Street

Work Zone – Looking North

MTA Capital Construction 10

West side of 2nd Avenue between102nd and 103rd Streets

Work Zone – Looking South Entrance to Underground Tunnel

MTA Capital Construction 11

West side of 2nd Avenue between 101st and 102nd Streets

Entrance

Widened Sidewalk East Side of 2nd Avenue between 99th and 100th Streets

MTA Capital Construction 12

Restored East 99th Street Crosswalk

MTA Capital Construction 13

After- East 99th Street Crosswalk

Bench Demolition- Demolition- 42% Completed

MTA Capital Construction 14

Existing Tunnel North of 98th Street

Ongoing Mass Excavation- 66% Completed

MTA Capital Construction 15

97th Street and 2nd Avenue

Ancillary 2

MTA Capital Construction 16

97th Street and 2nd Avenue

Ancillary 2 Tier 3 Diaphragm Slab

MTA Capital Construction 17

97th Street and 2nd Avenue

Removal of Existing Tier III Struts Launch Box

MTA Capital Construction 18

Between 92nd-95th Streets

Wisko Waterproofing Launch Box

MTA Capital Construction 19

Location? Between 92nd-95th Streets

North and South Tubes Launch Box

MTA Capital Construction 20

Location? Between 92nd-95th Streets

Entrance 2

MTA Capital Construction 21

West side of 94th Street and 2nd Avenue

Micro Piles Installation at Entrance 1

MTA Capital Construction 22

West side of 94th Street and 2nd Avenue

Micropiles Installation Type A 10 out of 10 (100%) Type 2 4 out of 4 (100%) Type C 6 out of 6 (100%)

Entrance 2 Jet Grouting

MTA Capital Construction 23

Northeast corner of 94th Street and 2nd Avenue

Three Month Look-Ahead - Contract 2A

MTA Capital Construction 24

Surface: 93rd to 99th Streets

• Intermittent Street Closings:

– Between 2nd and 1st Avenues

• 95th St
• 94th St
• 93rd St

– Between 3rd and 2nd Avenues

• 94th Street
• Mass excavation continues throughout project
• Excavation work begins at:

– Entrance1 (southwest corner of 94th Street) – Entrance 3 (west side of 2nd Avenue between 95th and 96th Streets)

• Mass excavation work projected to be complete project-wide by the end of

March 2013

Three Month Look-Ahead - Contract 2B

MTA Capital Construction 25

Surface: 105th to106th Streets

• Installation of a new sewer manhole on the east side of 2nd Avenue between105th and

106th Streets

• Installation of two Con Ed Electrical Chambers

– New work zone at 105th Street between First and Second Avenue (south and north sides of street, one work zone at a time in order to maintain a traffic lane on the opposite side) Underground: 99th to 105th Streets

• Continuation of demolition of concrete benches in the existing North Tunnel. To be

complete by March 2013

• Begin and complete repairs in existing tunnel North Tunnel
• Begin installation and reconstruction of concrete benches in existing tunnel North

Tunnel Underground: 92nd to 95thStreets

• Installation of concrete invert (base) slab
• Installation of PVC waterproofing
• Removal of lower level temporary struts that have temporarily braced the slurry walls

• 3. Discussion

MTA Capital Construction 26