Leader Lake Rd. Repair

Location: Okanogan Co., WA: Horrocks was selected to provide roadway improvements to Leader Lake Road, a heavily deteriorated and unmaintained road with insufficient roadside ditches and poor drainage. Our team redesigned the 1/2 mile of roadway, which included increasing the roadway width, realigning a horizontal curve, and re-establishing drainage ditches. Horrocks designed the new roadway with a 2% crown to shed water off the pavement and into the ditches. With a limited project budget, Horrocks was able to work with the Department of Natural Resources to come up with cost-saving solutions implemented in the design. Horrocks considered existing slopes while designing the roadway, and maintained them when possible to help reduce the need to haul waste materials off the project site. After performing value engineering, the design team determined that using recycled asphalt base stabilization would save approximately $15,000 in materials costs. Additionally, only one existing culvert was replaced as the re-

establishment of ditches eliminated the need for additional culverts, also reducing the overall project cost.