, earthquake strengthened, defensible off-the-grid luxury survival retreats, fortified eco homes, panic rooms, fire shelters, bomb shelters, hurricane, tornado, typhoon, cyclone shelters, underground bunkers & hardened facilities. Military Grade : Mission Critical : Construction : Security : Architectural Engineers : Fortified Eco Homes : Concrete Steel Bunkers Shelters : CBRN. https://hardenedstructures.com
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Our teams specific engineering expertise offers "hardening" of any new or existing building or structure to mitigate any known threat. Hardened Structures Hardened Shelters, LLC. is a Professional Construction Program Management Company specializing in the confidential planning, design and covert construction of hardened facilities, underground bunkers, survival communities, deep earth bunkers, rural compounds and fortresses. Composed of specially trained architects, engineers, physicists, scientists, ex-military and security experts, the firm has been recognized as one of the world's most experienced team of underground shelter engineers and design / build firms. Hardened Structures offers a full spectrum of services as listed below: Full Architectural & Design Services Construction Contracting Asset Value Assessment Threat Hazard Assessment Vulnerability Assessment Full Risk Assessment Site Selection and Layout Design Blast Effects and Mitigations Chemical, Biological and Radiological Protective Measures Red Team Assault Exercises Ventilation, Air Filtration and Sorbent Filtering Systems Sustainable, Alternative, Geothermal, Climatic and Solar Energy Designs Budgeting and Estimating Full Construction Contracting Long Term Survivability, Food Storage, Equipment and Shelter Management Plans Planning & Design Services – full Architectural and Engineering Design services. Critical Path scheduling, budgeting, product procurement, plan review, permitting, variance applications, owner representation. Construction Services – from complete single point responsibility for all construction activities to off-site advisory roles. A Hardened Structure Facility can be constructed in most localities, urban, suburban or rural. By its nature, a Hardened Structure is usually designed to perform its primary mission both during and after a war-like or criminal attack, in the event of a major natural disaster or accidental / man made emergency. Thus, making hardening one of its primary requirements and a significant part of the cost. We address these challenges by employing a Multi-Hazard Engineering methodology that not only recognizes individual hazards / threats sequentially but also address all hazards/threats simultaneously as a problem of optimization under constraints. The facility can be protected against a wide range of threats including forced entry, armed assault; chemical, biological, radiological, explosive (CBRE) agents, air-blast, ground shock, penetration, fragmentation and damage to the structure and equipment due to explosive loading. The Hardened Structures Team provides state of the art detection and mitigation of CBRN threats and protection for new or existing commercial or government buildings and transportation systems. Formed of specially designed engineers and general contractors, our structural engineering team provides design services and construction management for steel blast connections or blast curtain wall installations to protect commercial buildings.
10/02/2025
