1. Technical Excellence Practical Experience Client Responsiveness
Misc. Notes:
Questions they asked
Why use Langan not AKRF, VHB? Size, speed, cost, connections??
In-house vs. sub services?
Importance of community interaction, ability to speak to and present in front of people in laymans terms
They look for
OUR connections, expertise, in-house track record (on all projects), multi-discipline
(1) Speed (2) connections (3) quality of proposal
Technical Excellence Practical Experience Client Responsiveness

2. Geotechnical Solutions
John J. McElroy Jr., Ph.D., P.E.
(office)
(mobile)
Philadelphia Office 1818 Market Street Suite 3300 Philadelphia, PA 19103
Jared M. Green, P.E.
(office)
(mobile)
16 March 2018

3. Langan Engineering and Environmental Services, Inc.
Soil Nailed Wall at Highly Sensitive Site (Staten Island Courthouse – SI, NY)
Jared M. Green, P.E.
Langan Engineering and Environmental Services, Inc.
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

4. Site Location
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

5. Site History and Background
4 acre site – for proposed Courthouse and Parking Garage
Approximately a 35 ft differential in ground elevation across the site
About 20 ft across the proposed 46,930 sq-ft courthouse
About 15 ft across the proposed 48,860 sq-ft garage
Located at the former Marine Quarantine Hospital
1. The site is currently an asphalt paved parking lot and is located within the northeast
portion of Staten Island, called the Tompkinsville area.
2. Due to the sloping topography of the site, the proposed
courthouse and parking garage structures will be constructed into the slope.
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

6. Marine Quarantine Hospital
From 1799 to 1858, this quarantine hospital treated sick immigrants – taken directly from ships that entered New York Harbor
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

7. Marine Quarantine Hospital
In the late 18th Century, people were seen by physicians while their ships were anchoring in New York Harbor
If they were thought to have infectious deseases, they were taken to the Marine Quarantine Hospital
Some patients recovered and were discharged
Others did not and were buried in a rude graveyard on the campus.
This is a glimpse of immigration – long before Ellis Island (circa 1892)…
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

8. They complained of the terrible odors.
Neighbors of the hospital repeatedly repealed to the authorities to close hospital.
They complained of the terrible odors.
They complained of people in the community getting sick.
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

9. In 1858… The Hospital was Burned Down…
…by the community!
Gates were battered down
Each building was emptied of the residents.
Each building was then burned down.
No one went to jail for the fires…
Arson was defined as burning down a house…
…with people in it
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

10. This was well documented in Staten Island’s historic documents...
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

11. Site History and Background
The history of the site became apparent after an environmental review conducted in 2000.
An archaeological survey performed in resulted in the discovery of human remains in the northern corner of the site.
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

12. Site History and Background
The new buildings would be constructed south of the cemetery.
The skeletal remains removed during the survey would be reinterred in the cemetery at the end of construction.
The “Memorial Green”, park will cover the area of the cemetery.
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

13. Subsurface Investigation
31 borings were drilled
5 observation wells were installed
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

14. SOE Constraints Buffer Zone Unexamined Cemetery
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

15. Final SOE Constraints No excavation is permitted within this zone
Buffer Zone
Unexamined Cemetery
No excavation is permitted within this zone
Drilling is permitted within this zone
No work is permitted within 5 ft of the Unexamined Cemetery
No work is permitted within this zone
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

16. Soil Nail Wall – Plan View
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

17. Final Soil Nail Wall Configuration
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

18. Soil Nail Design Permanent condition – 22 ft high wall; FS=1.51
Temporary condition – 27 ft high wall; FS=1.31
SV = 5 ft; SH = 4 ft; rows of nails required
Nail Grout
3,000 psi
w:c ratio 0.40
Shotcrete
4,000 psi (pump mix)
w:c ratio = 0.39
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

19. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

20. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

21. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

22. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

23. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

24. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

25. Soil Nail Installation
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

26. Completed Soil Nail Wall
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

27. Completed Soil Nail Wall
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

28. General Observations and Monitoring Results
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

29. Foundation Wall Construction
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

30. Thanks!
6th Annual Statewide Structural Engineers Conference – State College , Pennsylvania – 7 June 2018

31. Geotechnical Solutions
John J. McElroy Jr., Ph.D., P.E.
(office)
(mobile)
Philadelphia Office 1818 Market Street Suite 3300 Philadelphia, PA 19103
Jared M. Green, P.E.
(office)
(mobile)
16 March 2018

32. Technical Excellence Practical Experience Client Responsiveness
Misc. Notes:
Questions they asked
Why use Langan not AKRF, VHB? Size, speed, cost, connections??
In-house vs. sub services?
Importance of community interaction, ability to speak to and present in front of people in laymans terms
They look for
OUR connections, expertise, in-house track record (on all projects), multi-discipline
(1) Speed (2) connections (3) quality of proposal
Technical Excellence Practical Experience Client Responsiveness