Liberty Inspection Corp

Brooklyn, NY

Status

Completed

Project Type

Residential Monitoring

Monitored Zone

8,400 Sq. Ft.

Commencement Date

02 March, 2026

Contract Value

Contract

Project Summary

A full vibration monitoring program was deployed at 415 Smith Street, Brooklyn, protecting neighboring structures during active construction by S&B Construction of NY under NYC DOB Job No. B01229728.

Three Instantel MiniMate Plus seismographs were installed at 413, 415, and 421 Smith Street on March 2, 2026, covering all key neighboring building exposures. Weekly reports were certified by our licensed PE throughout the project. A peak particle velocity of 17.33 in/sec was recorded on March 2, 2026, triggering immediate notification to all stakeholders. Subsequent readings trended downward, confirming effective construction management. All data was benchmarked against USBM RI 8507 and OSMRE thresholds. Full compliance documentation was maintained and submitted to the NYC Department of Buildings throughout the entire monitoring period.

Project Details

Monitoring Scope

3-Point VM Array

Monitors at three neighboring structures for full-site coverage.

PE-Certified Reports

Weekly reports reviewed and sealed by our licensed Engineer.

DOB Compliance Docs

All reports formatted and submitted per NYC DOB requirements.

Baseline Readings

Pre-construction readings confirmed safe conditions at all sites.

24/7 Data Logging

Instantel units recorded all seismic events continuously on site.

Exceedance Alerts

Immediate notice issued upon any threshold breach during project.

USBM RI 8507 Standard

Vibration data benchmarked against frequency-based thresholds.

Event File Archives

Full Instantel event records archived for regulatory reference.

Location

PROJECT ADDRESS
415 Smith Street, Brooklyn, NY 11231
NEARBY LANDMARKS

Train
250m

Bus Stop 
120m

Supermarket
320m

Park
500m

Hospital
1,200m

Airport
18,000m

School
400m

Bank
280m

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