Precision Selective Demolition at the Jacob K. Javits Federal Building

Project Location: Manhattan, New York City

Client: Volmar Construction, Inc.

Service Categories: Selective Demolition, Concrete Wall Sawing, Slab Removal

At a Glance

Eastern Cutting Corp. was selected by Volmar Construction to perform high-stakes selective demolition at the Jacob K. Javits Federal Building—the tallest federal building in the United States. Facing strict vibration limits, restricted access, and a massive volume of reinforced concrete, Eastern utilized precision wall sawing to complete the project ahead of schedule and without incident.

The Challenge: High Security, Low Tolerance

The reconfiguration of the courtyard space at the Javits Building required the removal of reinforced concrete roof slabs and massive support beams to accommodate the FBI, HHS, and the U.S. Army Corps of Engineers.

The project presented a logistical minefield that ruled out traditional demolition methods:

• Subway Proximity: The site sits directly above subway tunnels, imposing strict weight limits and ruling out heavy excavators.
• Vibration & Noise Restrictions: Jackhammering was prohibited due to the occupied nature of the federal building and the sheer volume of removal required.
• Access Issues: Cranes could not enter the courtyard; all lifting had to be performed from street level during non-peak weekend hours.

The Solution: Precision Diamond Sawing

Eastern Cutting Corp. engineered a solution centered on concrete wall sawing, chosen for its ability to cut heavily reinforced concrete quickly with minimal noise, dust, and vibration.

1. The Slab Removal Strategy Operators utilized the Pentruder 8-20HF wall saw to execute a “checkerboard” cutting pattern.

• Process: Roof slabs were sliced into manageable 2’ x 3’ x 16” sections.
• Removal: These sections were lifted by a Bobcat mini excavator into roll-off containers, ensuring rapid clearing of the workspace.
• Efficiency: A Real Power truck powered all saw cutting equipment, eliminating the need for bulky separate generators.

2. The Beam Removal Logistics Removing the large reinforced concrete support beams required distinct precision and safety measures.

• Shoring: Beams were shored up using OSHA planks and posts before cutting began.
• Rigging: A Hilti DD350 core drill was used to install anchors and lifting hooks on each section before the final cut.
• Lifting: A Magni RHT rotary telehandler crane lifted the cut sections from street level. Eastern operators performed critical weight calculations to ensure every pick was within the crane’s limits at that specific radius.

The Results: Ahead of Schedule & Zero Incidents

Despite the complex logistics of street closures and daily Job Safety Analyses (JSA) with the General Contractor, Eastern Cutting Corp. delivered exceptional results.

• Volume Removed: 75,000 square feet of 12-inch slab and 58 linear feet of heavy beam (requiring 44 vertical saw cuts).
• Timeline: The project was completed ahead of schedule.
• Client Trust: Following the success of the courtyard, Eastern was immediately awarded an additional contract for a knee wall removal on site.

“Finding the right contractors is key to staying on schedule and on budget. Eastern Concrete Cutting checks all the boxes. From estimating to coordination… Eastern met and exceeded all expectations. Eastern is and will continue to be my first call.”

— Charlie Spinale, Superintendent, Volmar Construction

Technical Project Specs

• Equipment Used: Pentruder 8-20HF Wall Saw, Hilti DD350 Core Drill, Real Power Truck, Bobcat Mini Excavator, Magni RHT Telehandler.
• Concrete Dimensions: 12-inch thick slabs; Beam sections approx. 58’ x 4’ x 5’.
• Hazards Managed: High-security federal clearance, subway vibration monitoring, pedestrian/traffic control in NYC.

Frequently Asked Questions (Project Highlights)

Why was wall sawing chosen over jackhammering for the Javits Building? Wall sawing was chosen because it produces significantly less vibration and noise compared to jackhammering. This was critical due to the building’s proximity to active subway tunnels and occupied federal offices.

How does Eastern Cutting Corp handle demolition in restricted access areas? We utilize modular electric equipment that does not require heavy machinery access. For this project, we used street-level cranes and mini-excavators inside the courtyard, carefully calculating weight loads to ensure safety.

What is the benefit of using Real Power trucks for demolition? Real Power trucks allow our trucks to generate their own power for heavy saws, eliminating the need to rent, transport, and refuel separate generators. This reduces the equipment footprint on tight NYC jobsites.