Roman roads and engineering
History · Key Stage 2 · The School
Built for the army, straight when possible
Roman roads mattered because armies and messages needed to move fast. Surveyors used simple sighting tools to line up distant points. Then the road was built dead straight between them, over hills if needed, rather than around. This saved real time on a long march.
Layers built to last
A Roman road was not just packed earth. Workers dug a trench, then filled it with layers: large stones at the bottom, then gravel, then a top surface. The middle was built slightly higher than the edges. This CAMBER let rain drain off into ditches on both sides, instead of turning the road to mud.
A network across the whole province
Roman Britain had roughly two thousand miles of these roads, linking forts, towns and ports. Milestones marked distances. A messenger on a fast horse, using staging posts, could cross Britain far quicker than anyone had managed before. This made the empire feel smaller.
Watling Street ran from Dover to Wroxeter, through London and St Albans. Much of its route is still a major road today — the modern A5. Cars now drive the same line Roman surveyors chose in the first century, because a well-built, well-drained, direct route is still exactly what a road needs to be.