From a Critical Bridge Solution to an Expanded Airport

Bay Bridge Repair

The Conco Companies’ range of concrete services for commercial, educational, industrial, healthcare, public work projects and parking structures is vast.  Our services are well-known and trusted throughout the Western United States and we have a reputation for consistently meeting deadlines and staying on budget.  Many of our projects have lasting effects the surrounding communities such as when we assisted with a permanent fix to the Bay Bridge and worked on the expansion to the Mineta Airport.  

The problem on the Bay Bridge was discovered when faulty anchor rods that secured the earthquake shock absorbers, known as shear keys, to the deck of the bridge snapped when tightened.  The 32 defective rods had secured the steel bridge deck that framed the concrete crossbeam support at the east end of the E2 pier.  As the failed rods were embedded in concrete and inaccessible, replacement was impossible.  The solution involved a complex series of steel saddles and post-tensioned jacket walls used to provide the required clamping force required to secure the bridge deck framing to the E2 crossbeam.  

Another significant project for Conco was to assist on the expansion and remodeling of the Mineta Airport in San Jose, CA.  Fueled by the fast job growth in nearby Silicon Valley, the Mineta Airport was not large enough to serve the community.  Our involvement in the 10-year plan was to help construct Terminal B, the largest phase of the project.  

Now considered to be one of the most technologically advanced airports in the country, the project received LEED Silver certification for environmentally sustainable design and construction. The airport’s website states that the design optimizes an “energy performance exceeding California Title 24 standards by 16%.”

The Conco Companies are the foremost supplier of concrete services for the Western U.S. We have built a reputation on superior concrete formwork, reinforcing, place and finish, shotcrete and other ancillary services that benefit from our vast experience.    We serve California, Washington State, Oregon, Colorado and Nevada.