The Work consists of site, civil and structural improvements to the existing BART Hayward Rail Storage Yard and to undeveloped land located north of the BART rail storage rack and east of the BART mainline tracks. The major work elements include ESA fencing to protect environmentally sensitive areas, bio-retention, demolition, removal or concrete and wooden ties, installation of a road, new maximum security fencing, retaining walls, sheet pile walls and new drainage.