Pervious or porous concrete pavements permit the percolation of water through voids in the pavement structure to the sub-grade which may reduce storm water runoff and pollutants carried during its transportation and dispersion.
In an attempt to provide a cost effective alternative to conventional storm water detention methods while reducing the impact caused by additional development, the City of Noblesville has developed minimum standard requirements for pervious concrete pavement. The premise of these standards is to:
1. Establish minimum performance criteria for the pavement structure, in a manner consistent with other pavements that are currently permitted by City Standards
2. Establish reasonable compliance with the City's Stormwater Ordinance, while observing traditional engineering practice, the City of Noblesville's Ordinances; and,
3. To utilize design and quality control measures recommended by the concrete industry for pervious concrete
The following requirements and standards shall be considered as a supplement to the City of Noblesville Stormwater Technical Standards Manual, which are incorporated by reference herein. These standards shall also reference and incorporate the subject matter in the City of Noblesville's Unified Development Code that involve projects which propose to utilize this design standard.
These standards shall be observed, applied, and demonstrated to obtain final approval for an Improvement Location Permit and the use of pervious concrete pavement. The purpose of using pervious concrete pavements shall not be to circumvent the requirement of detention or the need to save design costs. The concrete industry recognizes that pervious pavements are sensitive to in-situ conditions and require unique design consideration and expertise in their use. These standards were developed from several resources and incorporate their findings and recommendations. The placement of pervious concrete pavement and its use in a manner similar to conventional paving materials is not acceptable as it does not perform in a similar manner.