Minor Alteration No. WA2026059 – Pipe Removal and Excavation Project

The contract involves the removal of two existing 24-inch corrugated metal pipes and their associated flap gates and features at Levee Mile 1.74 in California. As part of the project, excavation will be conducted on both the landside and waterside toe of the levee to investigate the continued presence of DSID 22057 and to remove it if found. Following removal, the levee crown road will be restored using aggregate base material in kind to match the original construction. All excavation, removal, and backfill activities must comply strictly with Title 23, Section 120 of the California Code of Regulations concerning levee standards to ensure structural integrity and regulatory adherence. The work is part of Minor Alteration No. WA2026059 and is being managed by the Central Valley Flood Protection Board under the oversight of the State of California. Primary points of contact for the project include Brian Luke, Senior Environmental Scientist, and Henry Kuechler, Project Manager, who can be reached through provided phone numbers and email addresses for inquiries or coordination.