The History of Engineering in Disaster Preparedness: 18 Innovations That Saved Lives

Following the devastating Galveston Hurricane of 1900, engineers shielded the city from future storm surges by designing a concrete seawall, and raising the city’s elevation. The structure was built at an angle to efficiently dissipate sea waves, and reinforced with rebar.

• Impact: Significantly reduced damage during subsequent hurricanes.

• Source: American Society of Civil Engineers²

While it was primarily constructed for water storage and hydroelectric power, engineers needed to ensure the Hoover Dam’s structural stability against the Colorado River’s powerful flow. They created a unique cooling system that allowed the massive concrete blocks used in the dam’s construction to dry quickly without cracks, and installed spillways to control water overflow.

• Impact: Reduced the frequency and severity of downstream flooding.

• Source: CED Engineering³

Engineers used advanced computer models to simulate storm conditions when they created this wonder of the modern world. Designed to protect the Netherlands from flooding, The Delta Works is a series of dams, sluices, locks, dikes, and storm surge barriers that work together for maximum efficiency. Movable barriers in key locations are key for maintaining navigability while ensuring flood protection

• Impact: Recognized as one of the Seven Wonders of the Modern World.

• Source: Institute of Civil Engineers⁵

The Tangshan Earthquake kicked off the development of modern seismic monitoring systems in China. Engineers created a reliable warning system that balanced sensitivity to real quakes with resistance to false alarms, deploying networks of seismometers, and using geotechnical surveys to better understand fault lines to create a reliable warning system.

• Impact: Enhanced earthquake preparedness across the region.

• Source: A Review on the Development of Earthquake Warning System Using Low-Cost Sensors in Taiwan⁶

Constructed to protect London from storm surges and rising sea levels, the Thames Barrier is a movable structure that needed to be capable of withstanding immense hydraulic pressures, while remaining operational for decades. They opted to construct the gates from corrosion resistant stainless steel, and incorporated hydraulic mechanisms to ensure smooth operation.

• Impact: Prevented catastrophic flooding on multiple occasions.

• Source: Environment and Society Portal¹

Mangrove restoration is an ongoing effort to ensure the stability of coastal zones faced with rising sea levels and increasing erosion. Once established, they absorb storm surge impacts during extreme weather events, protecting property and human life. The trees are critical to the ecosystem too, with dense roots that help bind and build soils.

• Impact: Reduced coastal erosion and provided habitat for biodiversity.

• Source: Ecological Engineering¹¹

After the Kobe earthquake caused thousands of fatalities and injuries, engineers rebuilt by retrofitting older buildings with shock-absorbing materials and designing elevated highways with flexible joints. These measures helped prevent the collapse of critical infrastructure in future seismic events, reducing casualties. 

• Impact: Improved disaster readiness in densely populated urban areas.

• Source: Resilient Cities and Structures⁷

After the catastrophic 2004 tsunami, engineers designed and deployed a network of deep-sea buoys and seismic sensors. The system was supported by satellite communication technology to transmit critical real-time data to central monitoring stations.

• Impact: Provides real-time alerts, saving lives during subsequent tsunamis.

• Source: NOAA Center for Tsunami Research⁸

Following the devastation of Hurricane Katrina, engineers overhauled New Orleans’ existing levee system, rebuilding with stronger materials and deeper foundations to resist breaching. They also upgraded pumping stations with redundant power sources to ensure operation during emergencies.

• Impact: Improved flood defense for the city and surrounding areas.

• Source: City of New Orleans⁹

Engineers strengthened buildings against seismic forces using advanced retrofitting techniques, like carbon fiber reinforcement.  They also modernized the emergency response infrastructure, and added enhanced communication systems.

• Impact: Minimized potential casualties in a seismically active region.

• Source: World Bank Group¹²

After an earthquake destroyed Haitian communities, reconstruction efforts centered around the use of modular housing designs that could be assembled quickly and withstand seismic forces. Engineers prioritized the use of locally sourced materials to ensure affordability and sustainability.

• Impact: Increased structural safety in earthquake-prone areas.

• Source: Markkula Center for Applied Ethics¹⁸

After the 2011 tsunami, engineers constructed new seawalls with wall heights based on historical tsunami data. The new walls were built using reinforced concrete, and deployed curved designs to deflect wave energy back into the ocean.

• Impact: Reduced vulnerability to tsunamis.

• Source: The B1M¹⁶

When building the Tokyo Skytree skyscraper, engineers integrated advanced seismic isolation technologies to withstand future earthquakes. This included a a central reinforced concrete pillar designed to act as a counterweight during earthquakes, which was inspired by traditional Japanese pagoda design and minimized swaying to ensure the structure’s stability.

• Impact: Became a model for earthquake-resistant skyscrapers worldwide.

• Source: Council on Tall Buildings and Urban Habitat⁴

When constructing the Three Gorges Dam, engineers made decisions to prevent future disasters by creating solutions for managing sedimentation and preventing landslides in the reservoir area. They also incorporated spillways and sluice gates to regulate water flow and minimize upstream flooding.

• Impact: Prevented significant flood-related disasters in downstream communities.

• Source: Montana State University¹³

The ShakeAlert system was designed to create a framework for early warning when earthquakes struck. This meant integrating GPS data and accelerometers into a cohesive system, and designing algorithms to analyze seismic activity in real-time, issuing alerts within seconds and allowing for immediate protective action.

• Impact: Increased public safety in earthquake-prone regions.

• Source: ShakeAlert¹⁰

Faced with rising sea levels, engineers on the MOSE project deployed a system of inflatable barriers that rise during high tides. The barriers were created with durable materials to withstand prolonged submersion, and deployed using rapid hydraulic systems.

• Impact: Preserves the city's cultural heritage and infrastructure.

• Source: MOSE Venezia¹⁷

When developing updated building codes for fire prone California, engineers mandated the use of fire-resistant materials like tempered glass and non-combustible siding. They also created roof systems with minimal gaps to prevent ember intrusion.

• Impact: Reduced property loss during wildfires.

• Source: UpCodes¹⁴

The Sundarban area is prone to cyclones, which are worsening as a result of climate change. Engineers worked with communities in these areas to create climate resilient storm shelters using locally sourced and sustainable materials like bamboo and clay.

• Impact: Saved countless lives during cyclones.

• Source: Gaon Connection¹⁵