Lohr Napa River Bank Repair, (Lake or Streambed Alteration Agreement No. EPIMS-NAP-57553-R3, Amendment No. 1)

The Lohr Napa River Bank Repair project, governed by Lake or Streambed Alteration Agreement No. EPIMS-NAP-57553-R3 and Amendment No. 1, is an initiative by the California Department of Fish and Wildlife, Bay Delta Region. The agreement is awarded to Streamline Engineering, represented by Eric Austensen, and is performed pursuant to Section 1602 of the Fish and Game Code. The project is located at the Napa River on the Lohr Vineyard Inc. property in St. Helena, California. It is classified as a Class 2 categorical exemption under California Code of Regulations, title 14, section 15302, as it involves replacing existing structures on the same site with similar purpose and capacity. The scope of work involves the temporary dewatering of a 400-foot-long segment of the Napa River, impacting approximately 0.28 acres. Key technical requirements include the installation of cofferdams made of sandbags or clean gravel, the use of a water diversion system featuring screened pumps, a temporary pipe network, and siltation baffles, and the execution of a Dewatering and Aquatic Species Rescue Plan. Upon completion of the work, the 12,000 square feet of temporary impacts must be restored to pre-project conditions. Administrative oversight is provided by Environmental Scientist Nicholas Magnuson and Environmental Program Manager Craig J. Weightman.