Interstate 215/5th Street Bridge and Segments 1 & 2

AS A PART OF THE SANBAG CONSUTRUCTION SUPPORT TEAM, CHJ sampled and tested the construction materials for the 5th Street Overcrossing, including the bridge abutment and bent foundations, (which consist of both driven piles and cast-in-drilled-hole (CIDH) piles), retaining walls, sound walls, drainage structures, embankments, and roadway materials. Services for these projects include field sampling and testing, batch plant inspection and sampling, and laboratory testing of construction materials, including subgrade soils, structure and embankment fill, aggregates, base materials, Portland cement concrete, and asphalt concrete materials.
The purpose of our service was to ensure that the materials and workmanship used in the construction are in conformance with Caltrans regulations and procedures, including the Caltrans Construction Manual, Bridge Construction Records and Procedure Manual, Manual of Tests, Independent Assurance Program Manual, Standard Specifications, Standard Plans, and the project Special Provisions.