Tunnel Restoration The Senior Canyon Tunnel will be restored to greatly increase water flows from the mountain. This will allow us to service the needs, both agricultural and domestic, of our shareholders without reliance on an already taxed Lake Casitas. Additional resources: Tunnel-Background-DataDownload Tunnel-Condition-Assessment-ReportDownload SC-Tunnel-RFQ-Final-w-AttachmentDownload SC-Tunnel-RFQ-Notice-PageDownload