AEC 3D Culverts-Slabs is a solution helping civil engineers to quickly design and plan slab type cross drainage structures or minor bridges for highway/canal projects. It offers wide range of sophisticated features for precise design, planning, analysis, and production of 3D/2D drawings. These are based on approved deigns under National Standards like IRC SP 23 Designing of a culvert or a small bridge is not a small matter to be ignored by engineers. It must be remembered that the number of culverts and small bridges in any road project is so large that, together, they account for a considerable portion of the total expenditure. Designing is already taken care for standard lengths defined in the IRC Publication. However any span/height arrangements are proposed other than those mentioned in the publication a detailed design may be undertaken before construction.