The parking lot design consists of asphalt in driveway areas and porous pavers in parking stalls and pedestrian crosswalks. The asphalt areas use 2 inches of asphalt, 10 inches of crushed limestone base, and 6 inches of conditioned subgrade. The porous paver areas use pavers from Belgard Manufacturing along with layers of aggregate. Five parking stalls will have electric vehicle outlets and bike racks are located in front of the building. The lot slopes to drain stormwater through the porous pavers and into pipes running under the lot. The total cost is estimated at $346,753, with the driveway costing $172,194 and parking stalls costing $174,559.

1. Pavement Design
The parking lot design is made up of two main sections. There will be a typical asphalt
parking lot in the driveway areas. This is made up of 2 inches of asphalt, 10 inches of
crushed limestone base, and 6 inches of a moisture conditioned subgrade. In the
parking stall areas and the pedestrian crosswalk areas, a porous paver will be used.
This will aid in the storm water runoff design, as well as providing an attractive
atmosphere to aid the design aesthetics. This area is made up of pavers that will be
bought by Belgard Manufacturing, as well as 2 inches of #8 aggregate, 6 inches of #57
aggregate, and 6 inches of #2 aggregate. This design is for a ten year lifespan, however
the layout of the parking lot allows easy maintenance if a certain section should fail.
In order to further LEED certification, there are five parking stalls that will be marked for
electric vehicles only. These spaces will have outlets located nearby in order to provide
a better experience for environmentally conscious drivers. Also, bike racks will be
located in the front of the building to promote a healthier lifestyle and encourage people
to bike to our location. A total of four handicapped stalls are located in the front of the
building to meet ADA certifications, and are made up and surrounded by our porous
paver. This paver also improves the ADA accessibility guidelines by providing a
walkway that can be used by people with disabilities, since it will not be as affected by
changing weather.
The parking lot will be sloped at 2% running from the northeast to southwest direction.
This allows the storm water runoff to flow from the driveway asphalt to the porous paver
parking stall sections. Storm water runoff will then flow through the porous paver into a
series of 18 inch pipes running underneath the parking lot. Once the runoff has flowed
to the pipes, it will be diverted to the storm sewer channel located on our property.
Pricing for the parking lot comes to a total of roughly $346,753. This includes all the
materials, such as the asphalt, porous paver, aggregates, and seal coats, as well as
labor and equipment costs. The driveway is a total of 27,684 square feet, and costs
roughly $6.22 per square foot. This is a total of $172,194 for the driveway areas. The
parking stalls have a total of 24,937 square feet, and costs roughly $7.00 per square
foot, coming to a total of $174,559. The price for the paver was given to us by a
representative from a local material supply store specializing in the sale of porous paver
materials. Although the porous paver is more expensive per square foot, we feel the
combination of storm water runoff design help, improved atmosphere, and ADA
accessibility improvements are beneficial enough for the price increase.