Ventilation Systems

Ventilation Gantry

Design and supply of ventilation bulkhead gantries with built in fans/scrubbers to remove dust from work area


Client: Judlau - Canarsie Tunnel Rehab Project

Manufactured by: Nebraska Welding / KEE

Fan Skid Mounting System

Mounting system for temporary ventilation system under Madison Yard

Client: Dragados/Judlau – East Side Access

Manufactured by: American Commercial

Scrubber Installation

28,000 CFM fan and scrubber installation for rib of 22’ diameter tunnel

Client: Dragados/Judlau – East Side Access

Manufactured by: Nebraska Welding

Blast Door/Damper Assembly

54” Heal tap elbow with blast door and weighted damper that opens when negative pressure exceeds pre-set value

Client: Tutor/Salida – Caldicott Tunnel Project

Manufactured by: Nebraska Welding

Vent Car

Custom engineered drop deck flat car with engineered for purpose scissor lifts that carry vent sections in low and lift into place for installation in tunnel

Client: McNally/Kiewit WRTC

Roadheader Ventilation Platform

Bolts Into Tunnel Rib, 32,000 CFM Fan and Scrubber System, 1000 KVA Roadheader Transformer also mounted on deck

Client: Dragados/Judlau – East Side Access

Manufactured by: American Commercial

Madison Yard Vent Ducting

Ducting system design for installation with limited clearance in Madison Yard

Client: Dragados/Judlau – East Side Access

Tunnel Utility Installation

Design of ventilation system, and utility support brackets for shaft and tunnel

Client: OHL – Staten Island

Ventilation System

Bulkhead and Scavenger system provides adequate ventilation for station rebuild operations

Client: Judlau – 63rd and Lexington Station

Ventline Clamshell

Ventline clamshell assemblies for 54” hardline ducting on a new Robbins EPB Machine

Client: Barnard/Impregilo/Healy

Manufacturer: Nebraska Welding, LTD

Montague Tunnel Ventilation

Design of tunnel temporary ventilation system

Client: Judlau

Roadheader Ventilation Platform

Transported and relocated with strut gantry, 32,000 CFM Fan and Scrubber System, 1000 KVA Roadheader Transformer also mounted on deck

Client: Dragados/Judlau – East Side Access

Manufactured by: American Commercial

Rondout Ventilation System Design

Design of 1060 HP tunnel ventilation system for TBM and Drill/Blast project

Client: Kiewit/Shea

Hartford Ventilation System Design

Design of shaft and tunnel ventilation system for TBM tunnel on Hartford CSO project

Client: Kenny/Obayashi

East Side Access Ventilation System Design

Design of multiple shaft, tunnel, and cavern ventilation systems for final stages of East Side Access project

Client: Tutor Perini

Shaft & Tunnel Vent System

Client: Kiewit – Harlem River Tunnel Project

Manufactured by: SMJ