mta.info

Second Ave Subway

Construction Look Ahead

LOCATION:
96TH STREET STATION
(EAST & WEST SIDE)


DESCRIPTION OF WORK

DURATION:
NOVEMBER 2 - NOVEMBER 22

Work between 99th and 100th Streets

Utility relocation. Building new Con Edison manhole. Installation of Con Edison duct bank

Monday thru Saturday

Work between 97th and 99th Streets

Replacing Con Edison duct bank and manhole on North and South side of 97thth St between 2nd and 1st Avenue. Sewer relocation on 2nd Avenue

Monday thru Saturday

Work between 96th and 97th Streets

Relocation of 30" gas main. Sewer main relocation. Building support of excavation for new sewer chamber. Asbestos abatement at Century Lumber.

Monday thru Saturday

Work between 96th and 95th Streets

Reducing sidewalk to 7 feet on South side of 95th St on East and West Side of 2nd Ave. Building support of excavation for sewer chamber on North side of 95th Street between 2nd and 1st Avenues

Monday thru Saturday

BE ADVISED: Con Ed, Empire City Subway and Verizon may be performing cable and gas line work outside regular SAS construction Hours. Some of this work will take place on 2nd Ave between 95th and 101st St and will be intermittently carried out in support of the Second Avenue Subway.

LOCATION:
EAST SIDE
LAUNCH BOX


DESCRIPTION OF WORK

DURATION:
NOVEMBER 2 - NOVEMBER 22

Work between 95th and 94th Streets

Testing Substation equipment. Operating ground water control system.

Monday thru Saturday

Work between 94th and 93rd Streets

Operating ground water control system. Continuing soil and rock excavation of the Launch Box. Installation of Wales and Struts.

Monday thru Saturday

Work between 93rd and 92nd Streets

Continuing Launch Box soil excavation. Installing anchors at secant pile wall. Installing cables for Launch Box power. Controlled blasting of south end of Launch Box. Removal of blasting debris

Monday thru Saturday

Work between 92nd and 91st Streets

Continuing Launch Box excavation Installing anchors at secant pile wall. Installing cables for Launch Box power. Controlled blasting of south end of Launch Box. Removal of blasting debris.

Monday thru Saturday

BE ADVISED: Con Ed, Empire City Subway and Verizon may be performing cable and gas line work outside regular SAS construction Hours. Some of this work will take place on 2nd Ave between 91st and 96th St and will be intermittently carried out in support of the Second Avenue Subway.

LOCATION:
86TH STREET STATION


DESCRIPTION OF WORK

DURATION:
NOVEMBER 2 - NOVEMBER 22

Work between 87th and 86th Streets

Noise and air monitoring. Con Edison electrical utility relocation. Conducting Test Pit excavations. Utility relocation. Exploratory Borings.

Monday thru Saturday

Work between 86th and 85th Streets

Noise and air monitoring. Con Edison electrical utility relocation. Conducting Test Pit excavations. Utility relocation. Exploratory Borings.

Monday thru Saturday

Work between 85th and 84th Streets

Noise and air monitoring. Con Edison electrical utility relocation. Conducting Test Pit Excavations. Utility relocation. Exploratory Borings.

Monday thru Saturday

Work between 84th and 83rd Streets

Noise and air monitoring Relocation of hydrants. Con Edison electrical utility relocation. Temporary paving. Switch Traffic to West side of Second Avenue. Conducting Test Pit Excavations. Utility relocation. Exploratory Borings.

Monday thru Saturday

Work between 83rd and 82nd Streets

Noise and air monitoring Relocation of hydrants. Con Edison electrical utility relocation. Temporary paving. Switch Traffic to West side of Second Avenue. Conducting Test Pit Excavations. Utility relocation. Exploratory Borings.

Monday thru Saturday

BE ADVISED: Con Ed, Empire City Subway and Verizon may be performing cable and gas line work outside regular SAS construction Hours. Some of this work will take place on 2nd Ave between 81st and 87th Streets will be intermittently carried out in support of the Second Avenue Subway

LOCATION:
EAST AND WEST SHAFT SITE


DESCRIPTION OF WORK

DURATION:
NOVEMBER 2 - NOVEMBER 22

Work between 72nd and 73rd Streets.

Excavate trench and removing old gas and steam mains. Constructing electric manholes. Con Edison continuing abatement work in manholes

Monday thru Saturday

Work between 71st and 72nd Streets

Excavate trench and removing old gas and steam mains. Constructing electric manholes. Con Edison continuing abatement work in manholes

Monday thru Saturday

Work between 70th and 71st Streets

Building electric manholes. Con Edison continuing abatement work in manholes

Monday thru Saturday

Work between 69th and 70th Streets

Building electric manholes. Con Edison continuing abatement work in manholes

Monday thru Saturday

BE ADVISED: Con Ed, Empire City Subway and Verizon may be performing cable and gas line work outside regular SAS construction Hours. Some of this work will take place on 2nd Ave between 68th and 74th Streets will be intermittently carried out in support of the Second Avenue Subway 

Work Hours:
7:00 AM to 10:00 PM, Monday through Friday
10:00 AM to 7:00 PM Saturday.
Work Taking Place under Decking is Permitted 24 Hours.

If you have additional questions, please contact Claudia Wilson at (212) 792-9716 from 9:00AM to 5:00PM Monday through Friday, or contact the 2nd Avenue Subway Hotline 24 hours/7 days a week at (646)252-2670.


Traffic Update

100th Street to 95th Street

91st Street to 96th Street

88th Street to 84th Street

84th Street to 82nd Street

74th Street to 68th Street


NOTIFICATION OF CONTROLLED BLASTING ACTIVITY

The Second Avenue Subway project will be using a well established excavation technique called controlled blasting to facilitate the excavation of the Tunnel Boring Machine Launch Box. We have used this technique at many of our projects in Manhattan.

Controlled blasting activities are scheduled to begin the week of November 2, 2009.

The Fire Department of New York (FDNY) has approved a controlled blasting plan for the area of Second Avenue between 91st and 93rd Street which will be carried out in coordination with the MTA and S3 Tunnel Constructors. All blasting will be conducted under the direction and regulations of the FDNY. Blasting is permitted to take place during the approved Second Ave Subway working hours of 7 AM to 10 PM, although, every effort will be made to limit blasting to daylight hours.

Blasting Procedures

  • All pedestrian and vehicle traffic will be temporarily stopped during each blast occurrence. Blasting will occur approximately 4 to 5 times daily, with each blast lasting no more than one minute.
  • There will be a warning whistle before each blast
    • 1 whistle as a warning sound
    • 2 whistles indicate the blast is imminent
    • 3 whistles indicate the blast is complete and all is clear.
  • Flagging personnel will be positioned at the north, south, east and west corners of the blast zone to inform and direct pedestrians.
  • Signs will be posted around the work site that will state:
  • DANGER BLASTING- NO RADIO TRANSMITTING

As required by New York State regulations, and monitored by FDNY, all explosive materials are delivered to and from the work site daily.

Vibration and noise limits have been established by the MTA and the project designer. The vibration and noise readings will be monitored by the construction management team.

Please direct any questions or concerns to Marcus Book, Assistant Director, MTA NYC Transit Government and Community Relations at 646-252-2675 or Claudia Wilson at the work site at 212-792-9716.


If you have additional questions, please visit the Keeping in Touch page for contact information.

Project History Project Description
Project Update Private Property Impacts and Information
Documents & Presentations Keeping in Touch
Construction Update