Louisiana Department of Transportation and Development Standard Plans

These documents comprise the Standard Plans for construction in the state of Louisiana. It includes drawings for box culverts, catch basins and manholes, cattle guard, concrete retaining wall, corrugated metal pipe, dead end road installations, driveways, erosion control and bedding material, expansion and construction joints, fences, guardrails, mailboxes, Portland cement concrete pavement details, right-of-way monument and witness posts, signing and pavement markers, speed change lane for interstate, spur dike details and steel wire bar support.