Keystone Retaining Wall Bridge at Hurghada International Airport The newly constructed bridge at Hurghada International Airport features innovative design elements, incorporating keystone retaining walls with heights reaching up to 10 meters. The bridge is designed with two distinct steps, creating a dynamic visual effect. Between the steps, landscaped areas enhance the aesthetic appeal and provide a natural, green space for travelers. The keystone walls offer structural stability while complementing the surrounding environment, making the bridge both functional and visually appealing. This architectural feature blends modern engineering with nature, improving the overall passenger experience at the airport.