AUDAX AX MonogramAUDAX

CONSTRUCTION MONITORING · NYC

Vibration, Optical & Crack Monitoring —
Built for NYC's Most Demanding Sites

Audax provides construction monitoring plans, instrumentation, and real-time reporting to protect adjacent structures and keep your project DOB-compliant — from pre-construction survey through project closeout.

TPPN 10/88 CompliantVibration MonitoringOptical / Total StationCrack MonitoringPre-Construction Surveys
Request a Monitoring Plan →☎ (718) 21-AUDAX

COMPLIANCE REQUIREMENT

Does Your Project Require TPPN 10/88 Monitoring?

The NYC Department of Buildings Technical Policy and Procedure Notice #10/88 (TPPN 10/88) requires surveying and monitoring of all landmark buildings located within a 90-foot radius of any job site. This applies to excavation, demolition, underpinning, and foundation work across all 5 boroughs.

If your project involves any of the following activities near a landmark or sensitive structure, Audax will file your monitoring plan, install instrumentation, and deliver certified reports — keeping your DOB permit active and your project on schedule.

ExcavationDemolitionPile DrivingUnderpinningDynamic CompactionCaisson InstallationBlastingTunnelingAdjacent Structure Work

OUR MONITORING SERVICES

Every Monitoring Service Your Project Needs

Wireless and attended monitoring solutions — installed fast, reported clearly, and always aligned to DOB requirements.

VIBRATION MONITORING

Wireless & Attended Vibration Monitoring

Real-time vibration monitoring protecting adjacent structures and ensuring DOB compliance throughout blasting, drilling, excavation, pile driving, and demolition. Audax provides both wireless autonomous monitoring and attended manned monitoring depending on project sensitivity.

  • ◆Wireless seismograph deployment with real-time threshold alerts
  • ◆Manned attended monitoring for high-sensitivity or landmark-adjacent sites
  • ◆Immediate notification to project team on any exceedance
  • ◆Continuous data logging with certified compliance reports
  • ◆Monitoring plans filed with DOB prior to construction start
  • ◆Coverage for demolition, excavation, pile driving, dynamic compaction, and blasting

EQUIPMENT USED:

Instantel Minimate ProWireless SeismographsReal-Time Data LoggersCloud Reporting Portal
Request Vibration Monitoring →Call (718) 21-AUDAX

24/7

Continuous Monitoring

Wireless

or Attended

Real-Time

Threshold Alerts

TPPN 10/88

Compliant

OPTICAL MONITORING · TOTAL STATION

Optical Settlement & Displacement Monitoring

Precise horizontal and vertical movement tracking using total stations and Automated Motorized Total Stations (AMTS). Required by NYC Chapter 33 during excavation near existing structures. Audax installs monitoring points, establishes baselines, and delivers certified settlement reports on your schedule.

  • ◆Manned Total Station surveys for standard monitoring scopes
  • ◆AMTS automated continuous monitoring for high-risk or high-frequency sites
  • ◆Settlement Monitoring Points (SMPs) installed on adjacent structures
  • ◆Deformation Monitoring Points (DMPs) and Utility Monitoring Points (UMPs)
  • ◆Excavation Support Monitoring Points (USMPs) for pile and SOE systems
  • ◆Bi-weekly, weekly, or daily reading schedules available
  • ◆Baseline report established prior to construction, comparative reports throughout

EQUIPMENT USED:

Leica Total StationsAMTS Automated StationsPrecision Prism TargetsSurvey Software
Request Optical Monitoring →Call (718) 21-AUDAX

AMTS

Automated Option

Chapter 33

NYC Compliant

Daily

Reading Option

±1mm

Measurement Accuracy

CRACK MONITORING

Structural Crack & Movement Monitoring

Visual and sensor-based crack monitoring to track existing structural defects in adjacent buildings throughout construction. Audax technicians install crack gauges, establish baseline measurements, and deliver detailed progress reports showing movement, expansion, and risk assessment.

  • ◆Wireless crack gauge sensors for continuous automated monitoring
  • ◆Stationary mechanical crack monitors for standard scopes
  • ◆Baseline photographic and measurement survey prior to construction
  • ◆Periodic reports showing crack progression, width, and movement trends
  • ◆Immediate alert protocols if movement exceeds predetermined thresholds
  • ◆Independent documentation protecting contractors against damage claims

EQUIPMENT USED:

Wireless Crack GaugesMechanical Tell-TalesPhotographic DocumentationSensor Data Loggers
Request Crack Monitoring →Call (718) 21-AUDAX

Wireless

or Stationary

Baseline

Pre-Con Survey

Real-Time

Alert System

Defensible

Documentation

PRE & POST CONSTRUCTION SURVEYS

Existing Conditions Documentation

Detailed photographic and written documentation of all structures adjacent to your construction site — completed before work begins and after project closeout. Audax surveys provide independent, defensible records that protect contractors, developers, and property owners against unwarranted damage claims.

  • ◆Interior and exterior photographic survey of adjacent structures
  • ◆Written condition reports documenting pre-existing cracks, damage, and defects
  • ◆Post-construction comparative survey and final condition report
  • ◆Licensed surveyor sign-off on all deliverables
  • ◆Reports accepted by NYC DOB and used in damage claim resolution
  • ◆Landmark and historic structure survey experience

EQUIPMENT USED:

High-Res PhotographyLicensed Surveyors3D Laser ScanningCertified Reporting
Request Condition Survey →Call (718) 21-AUDAX

Pre & Post

Construction

Licensed

Surveyors

DOB

Accepted Reports

All 5

Boroughs

OUR PROCESS

From Monitoring Plan to Final Report — We Handle Everything

A clear, proven process that keeps your project moving and your DOB filings on track.

01

📋

Site Assessment & Scope

We review your project plans, DOB filings, and site conditions to determine which monitoring services are required and where instrumentation needs to be installed.

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02

📄

Monitoring Plan Filed

Audax prepares and submits your monitoring plan and protocol to the NYC DOB — coordinating with your engineer of record and project team before mobilization.

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03

⚙️

Installation & Baseline

Field crew installs all instrumentation — seismographs, total station targets, crack gauges — and establishes certified baseline readings before construction begins.

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04

📊

Ongoing Reporting & Closeout

Real-time alerts on threshold exceedances, regular certified reports on your schedule, and a final closeout documentation package delivered at project completion.

MONITORING IN ACTION

Recent Monitoring Projects

Real NYC projects where Audax monitoring protected structures, kept permits active, and delivered on schedule.

BROOKLYN · VIBRATION + OPTICAL

Lincoln Road — Structural Stability

Full monitoring scope protecting four adjacent structures throughout excavation and foundation work on a mid-rise residential development.

  • ✓ Vibration and optical monitoring active from day one
  • ✓ Weekly stability reports delivered to engineer of record
  • ✓ Zero structural incidents across all construction phases
→ View Project

QUEENS · TRANSIT INFRASTRUCTURE

MTA Facility Upgrade

Coordinated monitoring across active transit infrastructure — field teams worked within live MTA operating windows.

  • ✓ Vibration thresholds set to MTA sensitivity requirements
  • ✓ Real-time alerts integrated with contractor schedule
  • ✓ Full compliance documentation delivered for MTA sign-off
→ View Project

MANHATTAN · HIGH-RISE SOE

32-Story Residential Tower — SOE Monitoring

AMTS automated optical monitoring and inclinometer instrumentation throughout support-of-excavation on a tight Manhattan site.

  • ✓ AMTS continuous monitoring with daily automated reports
  • ✓ Inclinometer and settlement point data integrated into single report
  • ✓ All DOB filings and monitoring plan documentation on contractor schedule
→ View Project
View All Projects →200+ projects completed across all 5 boroughs

WHY AUDAX

Monitoring + Inspections. One Team. Zero Delays.

Most monitoring firms can't do special inspections. Most inspection agencies don't do monitoring. Audax does both — so your project never stalls waiting on a second vendor.

🏗️

Full-Service Under One Roof

Vibration monitoring, optical surveys, special inspections, and lab testing — all coordinated by one team with one point of contact.

⚡

Fast Mobilization

Field crews available for same-week deployment across all 5 boroughs. Emergency monitoring scopes accommodated with 24-hour notice.

📋

TPPN 10/88 Specialists

Deep knowledge of NYC DOB monitoring requirements — we file your monitoring plan, handle DOB coordination, and deliver compliant documentation.

📊

Real-Time Data & Reporting

Instant threshold alerts, cloud-accessible data, and certified reports issued on your schedule — daily, weekly, or milestone-based.

READY TO START?

Need a Monitoring Plan
Before Your Permit?

We'll turn it around fast — tell us about your project.

Request a Monitoring Scope →☎ (718) 21-AUDAX