SCH Number 2014012047

Project Info

Title

Removal of Summer Dam Spillway

Description

The project is limited to the demolition and removal of a summer dam spillway. The spillway is constructed using a sheet pile skin with a concrete cap covering fill material. A gravel pad will be constructed between the gravel bar and spillway using locally harvested gravel to allow access for equipment. Prior to gravel entering the stream channel: a biologist will oversee installation of a turbidity curtain and assure no fish are within the work area; gravel will then slowly be pushed into the channel within the curtain until a work pad is created adjacent to the spillway; turbid water within the curtain will be pumped to an upland settling and infiltration pond. Once access is secure, a vibratory hammer and excavator operated from the work pad will then be used to dismantle the concrete cap. A crane or excavator will then pull the sheet metal from the streambed. Concrete and fill material will be removed from the site. The gravel work pad will be left in place to wash away during winter storms.. Latitude 36.633N, Longitude 122.817W; adjacent to 2656 Fitch Mountain Road, Healdsburg. The California Department of Fish and Wildlife is executing a Lake and Streambed Alteration Agreement Number 160-2014-0119-3 pursuant to Section 1602 of the Fish and Game Code to the project Applicant, Del Rio Woods Recreation and Park District.

3 documents in project