Prairie Engineers provided planning, design, and construction phase services for a reconstructed parking lot at the Lincoln Park District Administration Facility. The existing parking lot was constructed of asphalt and concrete curb and gutter with no storm sewers, and was badly deteriorated from frequent standing water. Prairie Engineers suggested a “green infrastructure” design using interlocking permeable concrete pavers on a uniformly graded aggregate base which eliminated the need for storm sewers. This project was the first permeable pavement installed in Logan County and serves as a demonstration project for sustainable construction. Also incorporated into the project was the development of a rain garden which will be planted and maintained by local high school students.
Because the addition of inlets would require long runs of new storm sewer, a permeable pavement was an economical as well as a sustainable design solution. Prairie Engineers coordinated soil borings and percolation tests at several locations in the existing parking lot, and interpreted results to develop design criteria for the permeable pavement. Additional improvements included pavement patching and curb and gutter replacement.