One of the most widely used LID-related products on the market
By Janet Aird
“The use of permeable pavers has gone rampant,” says David Hein, an engineer with Applied Research Associates in Toronto, Canada. “It’s driven by the stormwater people. There’s been a major effort to deal with stormwater at the source.”
|Photo: Applied Research Associates
Good design and installation are essential to stormwater infiltration and retention.
|Photo: Hauber Fowler & Associates
It was challenging to excavate next to an historic building because of the utilities and old drainage pipes underneath.
|Paverscape employees swept #89 crushed limestone between the pavers to lock them in place. The pavers have less than half an inch between them, meeting ADA regulations.
Pervious pavers are durable, because the concrete is compressed during the manufacturing process. “They’re two times stronger than concrete, and they already have cracks,” says Hein.
Kenan Hall Plaza
For years, the entrance to Kenan Hall at Flagler College in St. Augustine, FL, needed a creative design to reveal its potential.
“It was a low area in front of the building,” says Sharon Fowler, ASLA, principal of the landscape architecture firm Hauber Fowler & Associates LLC in Longwood, FL. “After a strong rain, water would pool there, and students would have to walk through it.”
The asphalt for the driveway and the concrete for the curbs are poured before the pavers are laid, to provide solid borders for the pavers.
Fowler considered function as well as design and drainage. “I spent a lot of time thinking about how the space would be used,” she says.
PCC Rock Creek Recreation Facility
The Tualatin Hills Park and Recreation District (THPRD), just west of Portland, OR, needed a new facility to serve its current and future residents. The area is mostly suburban, but there’s a significant amount of rural land, and officials are expecting more development in the next 10 to 20 years. They had the funds to build the facility, but not the land. The adjacent Portland Community College needed sports facilities and recreational areas to enhance the curriculum at its Rock Creek campus. The college had the land, but not the funds.
The two combined resources, and today they share the 32-acre PCC Rock Creek Recreation Facility, which includes sports fields, tennis courts, and a trail for walking and jogging. The college uses the facility during the day on weekdays, and the recreation department uses it in the evenings and on weekends.
Sierra Pacific Constructors
When a high-end commercial general contracting company updates its parking lot, quality is important.
“They wanted to stay as green as they could,” says Gerber. J.M. Gerber Construction laid the Aqua Roc permeable paver system from Belgard Hardscapes in Atlanta, GA, in the parking lot. “Belgard offers a large array of stones, styles, and patterns,” he says. “Their colors are very consistent through the stone.”
“It was a great project,” says Gerber. “We did 5,000 square feet times 14 inches. That will hold a lot of water. We’re so dry all the time in southern California; we need to put as much
water into the ground as we can.”
Janet Aird is a California writer specializing in agricultural and landscaping topics.