Positive crown placed in a pavement is generally on the order of what measurement?

Positive crown is an important design feature in roadway construction, ensuring that water drains away from the center of the pavement toward the edges. This not only enhances the safety of the roadway by preventing water accumulation but also helps in prolonging the lifespan of the pavement.

The measurement of a positive crown is typically in the range of 1.25 inches to effectively facilitate proper drainage. A crown of this height allows for an adequate slope, ensuring that water can run off efficiently, which is crucial in preventing water-related pavement degradation issues such as erosion or cracking. Therefore, the selection of 1.25 inches reflects standard industry practices aimed at maintaining optimal drainage conditions and providing a durable road surface that can withstand varied weather conditions.