Bridge and Transportation
Steel, concrete, stone or wood, Silverado has extensive experience working on public works projects throughout the state. Silverado performs a wide range of bridge and transportation demolition work including complete bridge removal, bridge widenings and retrofits as well as airport runway and taxiway pavement removal.
Built in 1927, the Carquinez Bridge was utilized by more than 60,000 cars per day. Seismic problems led to its replacement. Silverado was contracted by California Engineering Contractors to demolish the old structure. Silverado removed the concrete deck and steel stringers on the suspension span totaling over 10,000 cubic yards of concrete and 2,500 tons of steel, safely and on time.
Silverado removed three elevated approach ramps to the Carquinez Bridge. The existing eastbound and westbound on ramps and the westbound off ramp. The connecting ramps were approximately 1,200 feet long concrete spans on steel composite girders. The westbound off ramp to Crockett was a 900 foot long steel truss bridge. All told, over 3,000 tons of steel and 10,000 cubic yards of concrete were off hauled for recycling.
C.C. Myers contracted Silverado to remove the 50 year old Maxwell Bridge in Napa, CA. A new span had been built beside it. Silverado cut the bridge into 5 large pieces, lowered the sections utilizing a barge mounted crane, and transported downstream barges to a local steel recycling facility. The demolition work occurred over one of only five navigable waterways in California, and as such, special care had to be taken when other vessels had to cross the straits spanned by the bridge.