After severe storms this past winter, Dry Dock No. 2 at Pier 68, a 900-foot floating structure roughly 3 football fields long, began experiencing uncontrolled flooding and unsafe listing. Due to the immediate risk to public and environmental safety, The Port of San Francisco declared the situation an emergency.
Power Engineering Construction was selected to perform the emergency stabilization work, bringing a fully self-performing marine construction team with in-house diving, derrick barges, and support equipment ready to mobilize without delay.
Work progressed quickly to stop the flooding and keep the structure afloat. Crews installed multiple dewatering and monitoring systems, then performed inspection, survey, and repair of hull breaches using welded steel plates, sealants, and salvage patches as required, with support from up to three crane barges, three surface supplied air dive spreads, and 40 crew members. Multiple scopes were carried out concurrently, and stabilization was achieved two months ahead of the anticipated schedule.
Ongoing work includes dismantling and removing two cranes located on top of the wing walls and adding supplemental mooring to ensure the dry dock remains secure for future storm events.
The project is expected to wrap up this summer. In the meantime, this video provides a look at the work underway.