CE&G provided geotechnical Construction Management services to the Zone 7 Water Agency for the repair of an eroded portion of creekbank along the Arroyo de la Laguna creek. The eroded portion of the west creekbank north of the Verona Bridge was adjacent to several homes in the 7000 block of Foothill Road, and encroached on the Zone 7 Water Agency’s easement that exists along the creek. The project team, consisting of the Zone 7 Water Agency, Fanfa, Inc., FlowWest and Storesund Consulting, and CE&G, moved quickly to develop emergency repair plans, apply for and obtain regulatory permits, and coordinate the delivery of supplies to fast-track the work ahead of the winter season. Working 10+ hour days, 6 days a week, the team completed the 11,000 cubic yard grading project ahead of schedule and below initial projected cost estimates (over $1 million below initial estimates). In addition to stabilizing this portion of the Arroyo along Foothill Road, the end result was a considerable restoration and improvement upon the local water habitat in the area. Project challenges included creek flow diversion, grading below the groundwater table, protecting local wildlife, and the ever-present threat of rain which could quickly overwhelm the creek diversion system.
