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

Second Avenue Subway Project: 96 th 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 MTA Capital Construction 1

1. Introductions MTA Capital Construction 2

2. Construction News MTA Capital Construction 3

Second Avenue Subway – Phase 1 Scope :  Tunne om 92 nd nd St to 63 rd rd St unnels f from St  Stations a s at 96 th St, 8 86 th St, 7 72 nd nd St and nd on Ave/63 rd rd St Lexingt Le ngton A St  Le Lexingt ngton A on Ave/63 rd rd St Subw ubway Conne onnection on Existing Tunnel  Track & k & Systems ms from m 105 th St to o Le Lexingt ngton on (99 th to 105 th ) 63 rd rd St 92 nd Street Launch Box Ave/63 St  Ser 96 th St & ervice bet etwee een 96 & Br Brook ooklyn n via Br Broa oadw dway Li Line ne 96th Street station Benefits: 86th Street station Lexington Ave/63rd St. Station  Relieves Overcrow owde ded d Le Lexingt ngton A on Avenue nue 72nd Street station lin line (86 th St to o Grand nd Cent ntral)  Connect cts t s to existing s system (Storag age a e and Mainten enan ance)  Early us use of of Tunne unnel S Section on built i in 197 970’s MTA Capital Construction 4

Site Map – 96 th Street Station Area MTA Capital Construction 5

Current Bus Stops SBS Express Stop – 2 nd Ave btw 100 th and 101 st St. • – Permanent Stop to remain in service for duration of C2B project Local M15 Stop - 2 nd Ave just north of 99 th St. • – Temporary Stop to remain in service until further notice Local M15 Stop -2 nd Ave just north of 101 st St. • – Temporary Stop to remain in service until further notice Local M15 Stop - 2 nd Ave just north of 103 rd St. • – Temporary Stop to remain in service until further notice Local Cross-town M96 Bus Stop - 96 th St, just west of 2 nd Ave • – Temporary Stop to remain in service until further notice MTA Capital Construction 6

96 th Street Station Area Bus Map * Will be posted along Second Avenue Subway corridor After MTA Capital Construction 7

Contract 2B Community Hand Out Bilingual English/Spanish MTA Capital Construction 8

Work Zone – Looking South Pressure Relief Manhole East side of 2 nd Avenue between 105 th Street and 106 th Street MTA Capital Construction 9

Work Zone – Looking North West side of 2 nd Avenue between102 nd and 103 rd Streets MTA Capital Construction 10

Work Zone – Looking South Entrance to Underground Tunnel Entrance West side of 2 nd Avenue between 101 st and 102 nd Streets MTA Capital Construction 11

Widened Sidewalk East Side of 2 nd Avenue between 99 th and 100 th Streets MTA Capital Construction 12

Restored East 99 th Street Crosswalk After- East 99 th Street Crosswalk MTA Capital Construction 13

Bench Demolition- Demolition- 42% Completed Existing Tunnel North of 98 th Street MTA Capital Construction 14

Ongoing Mass Excavation- 66% Completed 97 th Street and 2 nd Avenue MTA Capital Construction 15

Ancillary 2 97 th Street and 2 nd Avenue MTA Capital Construction 16

Ancillary 2 Tier 3 Diaphragm Slab 97 th Street and 2 nd Avenue MTA Capital Construction 17

Removal of Existing Tier III Struts Launch Box Between 92 nd -95 th Streets MTA Capital Construction 18

Wisko Waterproofing Launch Box Between 92 nd -95 th Streets Location? MTA Capital Construction 19

North and South Tubes Launch Box Between 92 nd -95 th Streets Location? MTA Capital Construction 20

Entrance 2 West side of 94 th Street and 2 nd Avenue MTA Capital Construction 21

Micro Piles Installation at Entrance 1 West side of 94 th Street and 2 nd Avenue Micropiles Installation Type A 10 out of 10 (100%) Type 2 4 out of 4 (100%) Type C 6 out of 6 (100%) MTA Capital Construction 22

Entrance 2 Jet Grouting Northeast corner of 94 th Street and 2 nd Avenue MTA Capital Construction 23

Three Month Look-Ahead - Contract 2A Surface: 93 rd to 99 th Streets • Intermittent Street Closings: – Between 2 nd and 1 st Avenues • 95 th St • 94 th St • 93 rd St – Between 3 rd and 2 nd Avenues • 94th Street • Mass excavation continues throughout project • Excavation work begins at: – Entrance1 (southwest corner of 94 th Street) – Entrance 3 (west side of 2 nd Avenue between 95 th and 96 th Streets) • Mass excavation work projected to be complete project-wide by the end of March 2013 MTA Capital Construction 24

Three Month Look-Ahead - Contract 2B Surface: 105 th to106 th Streets Installation of a new sewer manhole on the east side of 2 nd Avenue between105 th and • 106 th Streets • Installation of two Con Ed Electrical Chambers New work zone at 105 th 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: 99 th to 105 th 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: 92 nd to 95 th Streets • Installation of concrete invert (base) slab • Installation of PVC waterproofing • Removal of lower level temporary struts that have temporarily braced the slurry walls MTA Capital Construction 25

3. Discussion MTA Capital Construction 26