The use of pervious concrete pavement is increasing nationwide and hence it is important to understand the structural behavior of this type of concrete. In this research, we used Lightweight Deflectometer (LWD), a simple and non-destructive test, to obtain the structural properties of pervious concrete pavement. The test is conducted by dropping the weight on a circular plate and measuring the deflection of the pavement by three sensors (as seen in the photo). LWD test was conducted on different pavement locations across Washington State including a number of streets, parking lots, and sidewalks in different structures. The goal is to use the resulted deflections from different layer thicknesses to obtain the elastic modulus and modulus of subgrade reaction (k-value) of pervious concrete which are the key parameters in rigid pavement thickness design. This will provide a database for the properties of pervious concrete at different layer thicknesses. The LWD test results will be combined with further research work on a fatigue model to provide a mechanistic design procedure of pervious concrete pavements.