Description
A typical rural road cross section (hotmix-surfaced variant), drawn symmetrically about the centreline across the road reservation. The section sets out a 6,000mm sealed carriageway with 500mm verges and 1,000mm gravel shoulders, a 3% minimum / 5% maximum crossfall, and 1-in-3 batters down to table drains, with guide posts and delineators to the road authority standard and rock-pitched swales where grades exceed 10%. The pavement is built up from a compacted FCR base and sub-base course, with the layer thickness increased for lower-CBR subgrades as noted.
It is a ready reference standard for rural road and subdivision drawings – drop it in and adjust the seal width, shoulders and pavement depth to suit the design traffic and subgrade.
See also the urban hotmix and gravel driveway cross sections in the civil details category. A free AutoCAD DWG download.
