(1) Vendor needs to provide materials testing and geotechnical engineering services to the government authority located in Woodland, CA.– Perform Caltrans certified field and laboratory testing.– Perform road base reclamation and stabilization design work including, but not limited to traditional pavement design, cold foam in place recycling, lime stabilization, and cement treatment.– Consultant shall perform professional and technical services required to support the County in the development and construction of County Road and bridge projects, on an “as–needed” basis.– on–call quality assurance material testing work consists, in general, of performing Caltrans standard field and laboratory testing to evaluate the construction contractor’s compliance with the project specifications.– Bridge design experience with an ability to perform all necessary technical studies required by current Caltrans Design Standards and as required.– Experience in producing accurate and complete cost estimates.(2) The contract period will be for three years.