Database of State DOT Concrete Pavement Practices The ACPA Database of State DOT Concrete Pavement Practices contains 260+ variables from 60 locations, including every state in the United States of America.   Click here to launch the States Practices Database web page. Due to the complexity of the database interface, please allow a few moments for it to launch. If you are unfamiliar with new interface of the States Practices Database web page, please click here to read direction on how to quickly and easily build custom tables full of the data you want.