Stacey Agnew in the USA
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SERVICES
The full range of services offered by Stacey Agnew globally are available to projects in the US, and anywhere else for that matter.
Stacey Agnew has been providing underground ventilation, fire safety and fire engineering in the US market since 2009.
Stacey Agnew has successfully contributed these skills to several US projects:
While Stacey Agnew is still sub-consulting to Delve Underground, the Delve Stacey Agnew LLC entity has been wound up. As was the case before Delve Stacey Agnew existed, the full range of services offered by Stacey Agnew globally remain available to projects in the US, and anywhere else for that matter.
Delve Stacey Agnew, and before that Stacey Agnew McMillen Jacobs (SAMJ), was a jointly held company between Delve Underground and Stacey Agnew, providing underground ventilation, fire safety and fire engineering in the US market since 2019. Stacey Agnew has successfully prosecuted several US projects, either as a subcontractor to Delve Underground, or through Delve Stacey Agnew:
- Sumner road tunnel refurbishment in Boston
(https://staceyagnew.com/projects-old/sumner-tunnel-boston-usa/)
- Atlanta Plane Train rail extension new build
(https://delveunderground.com/projects/atlanta-plane-train-tunnel-west-extension)
- Rehabilitation of Roseville Tunnel (passenger rail)
(https://delveunderground.com/news/rehabilitation-of-the-historic-roseville-tunnel)
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DESIGN
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ABOUT
Prior to Stacey Agnew, Conrad Stacey and Nick Agnew produced underground ventilation and fire safety designs and analyses for several US and American projects, including:
- WTC PATH terminus station in Manhattan,
- Pittsburgh North Shore Connector
- Tuscarora road tunnel refurbishment in Pennsylvania
- Denver Union Station Bus Terminus, and
- Caracas Metro.
Regarding road tunnel ventilation, on fire safety and smoke control, the Australian-Austrian Beyer Stacey Brenn (2024) equations have been adopted in the 2026 edition of the US standard NFPA 502 (Annex D). So, we are at the forefront of underground ventilation and smoke control in the US.

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Home Office

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Sarah Stone

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Designer Team
ABOUT
We bring globally informed thinking and innovation to the US market, particularly:
- Tunnel Ventilation Planning and Design: Using advanced numerical modelling, but before that, using experience and creative thought, we ensure optimal ventilation solutions for underground infrastructure including tunnels, stations, mines, and pumped hydro energy storage plant.
- Fire and Life Safety: Comprehensive designs and evaluations to safeguard infrastructure and its users.
- System Reality Checks: Testing of the plant performance of existing infrastructure to verify that designed performance is achieved.
- Operational Readiness Testing: Tailored testing services for existing infrastructure owners, including ventilation measurements, smoke testing, and exercises, to ensure that systems, procedures and personnel are ready to respond to emergencies.
- Electrical Engineering, Controls, and Functional Safety: Design and advice on underground and other industrial infrastructure.

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Home Office

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Sarah Stone

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Designer Team
PORTFOLIO
PRICING
START
For small businesses
- Unlimited Support
- 5GB Server Space
- 2 Users per Project
- Free Domain
- Live Chat Support
- Email Integration
- Unlimited Download
FULL
Best buy for the price
- Unlimited Support
- 30GB Server Space
- 10 Users per Project
- Free Domain
- Live Chat Support
- Email Integration
- SEO Report
- Daily Backups
- Google Analytics
- Unlimited Download
BASIC
For medium businesses
- Unlimited Support
- 10GB Server Space
- 5 Users per Project
- Free Domain
- Live Chat Support
- Email Integration
- Unlimited Download
TESTIMONIAL

Peter Walter
UI/UX Designer

Julia Walsh
Developer

John Smith
Developer






BLOG
- 15 March 2025
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SKILLS
TIMELINE
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2015 - 2016
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2016 - 2017
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2017 - 2019
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2019 - 2024
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2024 - 2028
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CONTACT
Get in touch
with us
Company Head Office
Unit 4, 35 Limestone Street,
Darra, Queensland 4076, Australia
Phone
+61 (0)7 3077 6770
Website:
www.staceyagnew.com
Email:
enquiry@staceyagnew.com