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Permeable Interlocking Concrete Pavement
T-10.1
Local Installation
The City of Greenwood Village
decided to replace their concrete patio
at the employee entrance of City Hall
with PICP citing the following issues
with the former concrete patio:
• The patio had little positive
drainage.
• Roof drains discharged directly
onto the patio.
• Snowmelt caused icing and a
safety issue.
• Freeze/thaw cycles were rapidly
deteriorating the existing
concrete creating tripping
hazards.
Photograph PICP-7. City staff demonstrate the infiltration capacity
of PICP at the Greenwood Village City Hall.
The patio has been in place since
November 2008. To date, the City
lists the following benefits:
• The patio dries quickly with no
ponding or refreezing.
• Water moves quickly through
the pavement rather than sheet
flowing over the entire length of
the walkway.
• City staff describe maintenance
of the patio as "minimal."
Discussions with building
maintenance staff were held to
get assistance with debris
removal and to ensure that
sanding for ice control was
eliminated.
Photograph PICP-8. The limits of wetting remain the same after
multiple demonstrations.
November 2010 Urban Drainage and Flood Control District PICP-5
Urban Storm Drainage Criteria Manual Volume 3