Pavement Evaluation Report
A Pavement Evaluation Report (PER) provides a detailed visual assessment and physical analysis of a pavement’s surface.
The visual evaluation focuses on both pavement condition and factors that affect pavement performance, such as site drainage, water sources, tree root problems, load conditions, ADA parking and access requirements, and site work concrete for liability purposes.
The physical evaluation begins with pavement testing. Phase one begins with measuring asphalt and concrete thickness and truck loading conditions (Traffic Index TI) followed by deflection measurements. Pavement Engineering uses a Dynaflect pavement deflection measuring device that applies an oscillating load on the pavement and measures the resulting deflection. These test results determine the structural adequacy of the pavement and its structural overlay requirements.
Phase two of our testing involves core sampling of native soils. Depending on the Dynaflect test results, we core through two or more pavement sections.
Both the Dynaflect and core sampling tests determine the pavement’s structural capacity, each providing slightly different data depending on the pavement materials, layer thickness and moisture content. The test results determine the most economical design based on an annual cost analysis and other factors affecting present and future maintenance costs.
The comprehensive report, which can be used for construction compliance or pre-purchase evaluation, includes all of the following:
- Physical properties and structural capacity
- Site drainage review
- Water source effects
- Load condition effects
- Environmental condition effects
- Sampling and laboratory test results
- Photographs and a site plan indicating the location of tests
- Recommendations for rehabilitation along with cost estimates for repairs