Assessing the performance of permeable pavement
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The anticipated construction period for this page is January through March, 2013
The anticipated construction period for this page is January through March, 2013
This site is currently undergoing final review. For more information, open this link.
The anticipated review period for this page is January through March, 2013
The anticipated review period for this page is January through March, 2013
Maintenance of permeable pavement includes a review of its condition and performance. A spring maintenance inspection is recommended and cleanup conducted as needed. The following are recommended annual maintenance inspection points for permeable pavements:
- The drawdown rate should be measured at the observation well for three (3) days following a storm event in excess of 1/2 inch in depth. If standing water is still observed in the well after three days, this is a clear sign that subgrade soil clogging is a problem.
- Inspect the surface for evidence of sediment deposition, organic debris, staining or ponding that may indicate surface clogging. If any signs of clogging are noted, schedule a vacuum sweeper to remove deposited material. Then test sections using ASTM C1701 to ensure that the surface attains an infiltration rate of at least 10 inches/hr.
- Inspect the structural integrity of the pavement surface, looking for signs of surface deterioration, such as slumping, cracking, spalling or broken pavers. Replace or repair affected areas as necessary.
- Check inlets, pretreatment cells and any flow diversion structures for sediment buildup and structural damage. Remove the sediment.
- Inspect the condition of the observation well and make sure it is capped.
Inspect any contributing drainage area for any controllable sources of sediment or erosion.