11-14-2014, 12:45 PM
(11-14-2014, 12:33 PM)nms Wrote: does anyone know what the relative lifespan of an asphalt path
This guy suggests that asphalt won't address the erosion issues: Hillside Park plan doesn’t address cycling needs
Quote:The city argues the paving is necessary to address erosion problems created by the regular flooding of the park during heavy rains. Their thinking is that by grading the path at an angle in the areas prone to flooding, the water will pass over the path and continue into Laurel Creek.If he's right about this then sections of pavement are destined to wash away or collapse long before the asphalt deteriorates naturally.
The problem with this as an "engineered solution'" is that the edge of any paving is a lip and the volume and speed of the water that spills over the Forwell Creek will likely wash under as well as over the asphalt.
There were at least five such flooding events in the park last summer. I expect the city will soon find this is a very expensive stretch of path if it plans to maintain it.
He also makes other negative comments about the wisdom of paving this trail including environmental harm and safety.