construction. This required the construction of temporary support structures such as were used in the original construction. A concurrent effort removed the temporary S-curve allowing completion of the new span's bicycle and pedestrian path and improvement of the east-bound vehicular approaches. Dismantling was delayed by the presence of nesting cormorants. By mid-November, the main-span portion of the western (left) cantilever and its tower had been almost completely removed and temporary supports were erected beneath the right portion of the eastern cantilever. As of May 2015, only a third of the rightmost span remained and by June 12, 2015 the task was completed On November 14, 2015 the concrete cellular foundation of pier E3 (which supported the eastern cantilever tower) was explosively demolished with the debris falling into the steel caisson below the mud bay bottom. Numerous sequentially detonated charges and an all-around air bubble curtain were used to reduce underwater shock waves in order to protect marine life. For Caltrans E3 removal planning details see this link The second phase entailed the removal of the five truss spans and the truss causeway, and the third and final phase was the removal of the underwater foundations. The entire dismantling project was completed on November 11, 2017. As the old East Span was dismantled, materials removed from the structure were loaded onto barges and shipped away for recycling. Judge John Sutter Regional Shoreline On October 21, 2020, the Judge John Sutter Regional Shoreline, located at the foot of the bridge, opened to the public. The park, which was originally proposed as "Gateway Park", features a 600-foot long observation pier made from the existing foundations of the old bridge, and allows for easier access to the bay and the Alexander Zuckerman Bike Path. Driving experience In either direction the driving experience has been greatly improved. In addition to the wider lanes of traffic in each direction, there is now a continuous lane for emergency or disabled vehicles on each side of the five traffic lanes. The bridge night lighting is now glare free and new white LED lighting has been installed in the lower, eastbound tunnel section. The removal of sharp curves east of the tunnel has encouraged a smoother eastbound traffic flow west of, and through the tunnel, even when compared to the pre-construction configuration. Pedestrian walkway The span includes a new pedestrian and bicycle route, formally named the Alexander Zuckermann Bike