Open- and Gap-Graded Asphalt Pavements Water Quality Project, Districts 1, 4 & 5, California

The Open- and Gap-Graded Asphalt Pavements pilot study was designed to evaluate stormwater runoff quality from open-graded and gap-graded pavements to that of conventional (dense-graded) pavements. The project included nine pilot study paired sites located statewide. For the paired sites, the test stations consisted of a freeway or highway segment with a relatively new porous pavement overlay. The test station was paired with a control station consisting of a nearby section of the same road, paved with conventional dense-graded pavement. Served as senior field crew leader, responsible for construction, installation, operation, maintenance, and demobilization of remote monitoring stations. Operated semiautomated monitoring equipment and collected flow-weighted composites stormwater samples. Performed stormwater sampling, staff training, and field documentation.