At the Bainbridge Island Ferry Terminal in Washington State, passengers experience breathtaking views from the 30-foot tall pedestrian walkway, a beloved structure that has welcomed travelers for over 50 years. However, as the busiest terminal in the Washington State Ferries (WSF) system, handling 3.2 million passengers annually, it has become clear that this aging wooden infrastructure poses challenges, particularly in the face of seismic risks inherent to the region.

The Seismic Reality of Washington State

Washington State is no stranger to earthquakes, with over 1,000 occurring each year, many undetected. While most are minor, the potential for a major earthquake looms large due to the Seattle Fault, which could unleash a catastrophic event, including tsunamis and strong currents in the Puget Sound. This geologic setting necessitates proactive measures to safeguard infrastructure and the public.

Recognizing these risks, WSF has embarked on a $33 million project to rebuild the walkway, replacing the wooden structure with a modern, concrete and steel design. This new construction will not only enhance safety but also comply with current seismic codes, ensuring resilience against future natural disasters.

Enhancing Safety and Experience

The new enclosed bridge will offer a wider, more secure passage, improving accessibility with an ADA-compliant path. Designed with passenger comfort in mind, it will feature operable windows for ventilation and infrared heaters for colder months. Additionally, the removal of creosote-coated timber piles promises significant health and environmental benefits, as creosote is a known carcinogen harmful to both humans and wildlife.

The Role of ICE® Equipment

To facilitate this ambitious rebuild, Subsurface, the general contractor, is utilizing advanced ICE® deep foundations equipment. The project involves a variety of machinery, including three vibratory hammers, two diesel impact hammers, and several clamping accessories, all designed to ensure precision and efficiency in a tight work environment.

Despite ongoing ferry operations every 45 minutes, Subsurface has managed to maintain access for passengers by employing an ICE® 33 Vibratory Hammer to create a temporary walkway. This strategic use of equipment ensures minimal disruption while the old wooden structure is dismantled and the new bridge takes shape.

The construction process involves driving both temporary and permanent pilings, utilizing the ICE® 110C Vibratory Hammer and various other specialized tools to ensure stability and durability. The team also employs innovative techniques to diagnose potential obstacles, allowing them to adapt their approach effectively.

Partnership for Success

The success of this project can be attributed to not only the high-quality ICE® machinery but also the steadfast support from International Construction Equipment, Inc. Their dedicated service engineers work closely with the contractor, providing essential guidance and resources to navigate the complexities of the project.

As the Bainbridge Island Ferry Terminal transitions into a new era of safety and accessibility, the collaboration between Subsurface and ICE® exemplifies the importance of innovative technology and partnerships in addressing infrastructure challenges.

Looking Ahead

The new walkway, set for completion in early 2024, will not only enhance the ferry terminal experience but also stand as a testament to the resilience of the Bainbridge Island community in the face of natural challenges. At Hydrauli-Flex, we are proud to support this endeavor, knowing that our hydraulic hoses play a crucial role in the efficient operation of the machinery making this project a reality.

To learn more about the advanced ICE® equipment being used in this transformative project, including the ICE® 33, ICE® 110C, ICE® 22D, and more, visit our website. Together, we’re building a safer, more reliable future for all who travel to and from Bainbridge Island.