NHSA H-5 newsletter header

December 18, 2015, Volume XXII

Construction update

During the week of December 10th, the contractor continued formwork for the intermediate concrete slab within the pumping station. The wall forms were removed from the internal concrete walls and work continues on additional formwork for concrete placements including the top slab. The contractor has provided the Authority with the following work schedule over the Holidays:


Contractors Holiday Work Schedule
Dec 21st – Full day
Dec 22nd – Half day
Dec 23rd – Full day
Dec 24th – Half day
Dec 25th – Christmas holiday (no work)
Dec 28th – Full day
Dec 29th – Full day
Dec 30th – Full day
Dec 31st – Half day
Jan 1st – New Year’s holiday (no work)


As previously reported in the newsletter (September 18, 2015, Volume XI), the completion of the control vault foundation during the week of September 14th sealed off any contaminated soils at that location. The pumping station foundation slab has also sealed off any contaminated soils at that location. Air monitoring of the site, as directed by the Licensed Site Remediation Professional (LSRP), began on August 27th and continues.

 

As shown in previous newsletters, the project’s three (3) phases are dictated by the engineering and construction requirements and will occur in three areas along 11th Street, as seen in the figure below. The three phases are: 1) the construction of the wet weather pump station; 2) the construction of the control vault; and 3) the installation of the emergency generator.

Construction map

(Click image above for a larger view)


Latest construction activity

During the week, construction submittals from the contractor continue to be reviewed and processed by NHSA engineers. The contractor continues to work with PSE&G on the preparatory work for the installation of the emergency generator at the NHSA island between Hudson and Washington Streets. The following is a summary of the construction submittals processed to date:

  • Construction submittals received: 141
  • Construction submittals reviewed: 137
  • Construction submittals approved: 130
  • Submittals not subject to review (for information only): 11

The following construction submittals were reviewed the week of December 10th through December 18th, 2015.

  • Submersible pumps (structural analysis and design calculations - wet weather pumps discharge columns
  • Excavation support and protection (temporary sheeting design - pump station connection vault)
  • Low voltage transformers
  • Cast in place concrete - pump station (report of concrete inspection and testing) November 4, 2015 (28 day report)
  • Cast in place concrete - pump station (report of concrete inspection and testing) November 25, 2015 (7 day report)

The following is a recent photograph of the progress on the pump station as of December 18, 2015. The picture depicts the concrete formwork and the discharge pipe spool pieces (in black).


Concrete formwork and discharge pipe spool pieces

(Click image above for a larger view)


Coming up

In the next two (2) weeks, the contractor will continue to prepare submittals and obtain approvals for construction activities. Going forward into the week of December 21st, these activities will include the following continuation of work underway and reported in previous newsletters:

  • The contractor will place the concrete in the formwork for the pump station intermediate slab and will complete the interior walls. Once the walls and intermediate slab have been placed the contractor will continue with the top slab formwork and reinforcing steel installation.
  • The contractor is coordinating the electrical service from PSE&G to continue electrical rough in and installation of equipment within the control vault.
  • The contractor will continue to have a water truck available to abate dust and soil an erosion controls to prevent the migration of dust from the construction area.
  • The LSRP air monitoring program continues in place.

LSPR update

The LSRP’s recent activities include:

  • Air monitoring of the site began on Thursday, August 27th and continues, in accordance with the LSRP-approved plan.
  • The air monitoring readings are continuing. Daily updates are being sent to the HOA and the weekly updates are being posted on the NHSA website.

Overall construction schedule

The current overall construction schedule remains as follows:

  • Pre-construction activities: Completed as scheduled.
  • Construction activities, now underway: Mid-August through December. This includes work on the installation of control vault and pump station. The emergency generator on North Hudson’s existing 11th Street pump station island between Hudson and Washington Streets will also be constructed once the transformer and generator are procured.
  • LSRP monitoring begins with construction and ends when the cap is restored.
  • Control vault construction continues until April 2016.
  • Pump station construction continues until August 2016.
  • Final completion and site restoration is scheduled for October 2016.

Role of the LSRP

The LSRP serves an extremely important function in the construction of the H-5 WWPS. He will oversee all environmental issues on the site, including the voluntary air monitoring that North Hudson is undertaking. In this capacity, the LSRP is responsible to the NJDEP for ensuring that all construction is done in accordance with the Remedial Action Plan filed with the State during the original development of Maxwell Place. The contractors will take no steps that impact the environment without the strict oversight of the LSRP. The LSRP will report on a regular basis to the NJDEP.

 

Because Maxwell Place was constructed on land that was remediated for soil and groundwater contamination, an NJDEP-approved engineered cap was placed within the development and along 11th Street. The construction of the WWPS will lift minimal parts of the cap in carefully defined areas, and the LSRP will develop a Data Collection Plan to strictly supervise and control all related construction activities. No construction that impacts the existing cap can be undertaken without the approval of the LSRP.

 

The LSRP will also supervise the gathering of air samples adjacent to the construction, as part of North Hudson’s voluntary air monitoring program. The LSRP will oversee the air quality data collection and provide advice before construction begins, during excavation and until the cap is replaced.

 

The recent air monitoring data can be found on the NHSA website.

auto and pedestrian

Sidewalk and auto access

This is the most current information and will be updated going forward.

 

Sidewalks

South sidewalk on 11th Street: Open at all times.

East sidewalk on Sinatra Drive North: Maintain drop-offs for school.

North sidewalk on 11th Street: Brief intervals of closure between Sinatra Drive North and Hudson Street.

East and West sidewalk at Maxwell Lane: Maintain access for drop-offs to daycare.

 

Traffic

 

Uninterrupted access to parking garage.

Eastbound traffic lanes 11th Street: Short temporary closures during utility relocation; both lanes closed during pump station construction between Maxwell Lane and Sinatra Drive North. Open at all times from Maxwell Street to Hudson Street.

Westbound traffic lanes 11th Street: Temporary closures for traffic relocation between Maxwell Lane and Hudson Street. Both lanes closed during pump station construction from Maxwell Lane to Sinatra Drive North.

 

Parking

 

No street parking during construction hours between Maxwell Lane and Hudson Street.

No street parking on 11th Street from Hudson Street to Sinatra Drive North (Eastbound).

 

Effect on local businesses

 

Sidewalk access permits unimpeded foot traffic to local businesses.

Traffic controls at site will minimize business impact.

Drop-off point will be maintained during construction.

Parking access may have
limited effect.

Parking garage access remains in place.

Restrictions on street parking will be impacted during construction.

 

auto and pedestrian

Air monitoring

Although the NJDEP does not require air monitoring for the H-5 WWPS project, North Hudson is voluntarily monitoring the air surrounding the construction site for dust and volatile organic compounds (VOCs). The LSRP will continuously monitor the air during excavation activities and until the original cap has been replaced. This is a relatively conservative approach, as it is designed to alert the construction team whenever dust is in excess of the LSRP monitoring plan. Readings that show elevated levels of dust or VOCs in the air will result in review and remedial action to abate the condition as approved by the LSRP. Our e-newsletter will provide regular summaries of the air monitoring activities, and the website (nhudsonsa.com) will post daily readings.

Telephone

Contact us

You can contact us 24/7 at our dedicated number: 866.689.3970. The Resident Engineer, who is overseeing the construction, will normally be on site during construction hours, Monday through Friday, 8:00 a.m to 4:30 p.m.