Caltrans > Engineering Services > Office Engineer > 2006 US Customary Units

2006 Standard Plans (U.S. Customary Units) Select here for Entire 2006 Standard Plans Book in one single .pdf file. Select here for Individual 2006 Standard Plans in .dwg, .dgn and .pdf formats. 2006 Standard Plans Digest of changes 2006 Digest 2006 Digest. For questions or information regarding the Standard Plans please contact Santo Wong 2006 Standard Plans (U.S. Customary Units) Updates. Current 2006 Revised and New Standard Plans (Click Here) Issuance of 2006 Revised and New Standard Plans - Errata