Construction of the HDOT Highways Kawainui Watershed Storm Water Best Management Practices project was completed in the spring of 2016. The overall goal of this project is to reduce sediment erosion into the HDOT Highways storm water system. This project included the repair and remediation of five eroded slopes located within HDOT Highways rights-of-way that have the potential to contribute sediment to storm water runoff. Additionally, the project included the construction of a new storm water treatment settling basin at the inlet to a storm water pipe that was previously completely buried in sediment. This settling basin is a Permanent BMP designed to capture sediment and leaf litter so it can be removed by HDOT Highways maintenance crews before it has a chance to enter the storm water system. The successful construction of this project was managed by HDOT Highways Salt Lake field office.
Click on the photos below to learn more about the slope repair process.
Click on the photos below to learn more about the settling basin.