If you are interested in learning more about the Seattle subterranean highway, you might be interested in this new video which has been captured by a drone that has flown through the SR 99 tunnel by the Washington State Department of Transportation.
The construction of the tunnel is on a massive scale and the quick four-minute video provides a great overview of just what is capable of being constructed in this day and age.
The Engineering Marvel of SR 99 Tunnel
The SR 99 tunnel, also known as the Alaskan Way Viaduct replacement tunnel, is a testament to modern engineering. Spanning approximately 2 miles, this tunnel is designed to replace the aging Alaskan Way Viaduct, which was deemed seismically vulnerable. The project not only aims to improve safety but also to enhance the traffic flow in and out of downtown Seattle. The tunnel features state-of-the-art safety systems, including ventilation, fire suppression, and advanced traffic monitoring systems.
The drone used to record the footage was a quadcopter made by 3DR, a company known for its innovative drone technology. The video provides a unique perspective on the construction progress, showcasing the immense scale and complexity of the project. Check out the awesome video below which includes subtitle pointers to help you understand exactly what you’re seeing.
Behind the Scenes of Tunnel Construction
The construction of the SR 99 tunnel involves a variety of advanced techniques and machinery. One of the most notable pieces of equipment used is the tunnel boring machine (TBM) named “Bertha.” Bertha is one of the largest TBMs in the world, measuring 57.5 feet in diameter. The machine was specifically designed for this project and has been instrumental in excavating the tunnel beneath Seattle.
Just a few days before the SR 99 tunneling machine started tunneling under the Alaskan Way Viaduct, the Washington State Department of Transportation flew a video-equipped drone through the SR 99 tunnel to show Seattle Tunnel Partners’ construction progress. On an average day, the tunnel is bustling with construction. To avoid disrupting crews, this video was recorded in between regular work shifts.
The video highlights various stages of the construction process, from the initial excavation to the installation of tunnel segments. Each segment is meticulously placed to ensure the structural integrity of the tunnel. The use of drones in construction projects like this one is becoming increasingly common, as they provide a safe and efficient way to monitor progress and identify potential issues.
The SR 99 tunnel is not just a feat of engineering but also a significant investment in the future of Seattle’s infrastructure. Once completed, the tunnel will feature two levels, each with two lanes of traffic, and is expected to significantly reduce congestion in the city. Additionally, the removal of the Alaskan Way Viaduct will open up the waterfront, providing new opportunities for public spaces and development.
Source: DT
Latest Geeky Gadgets Deals
Disclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our Disclosure Policy.
