Oak Avenue Utilities Rehabilitation Project

The Oak Avenue Utilities Rehabilitation Project, managed by the City of St. Helena Public Works Department in Napa County, California, involves the replacement of water, sanitary sewer, and storm drain facilities along Oak Avenue from Madrona Avenue to Mitchell Drive. The scope of work includes upgrading the existing outfall structure at Sulphur Creek to accommodate the new storm drain system, as well as performing minor trenching, excavation, and backfilling. All infrastructure will be replaced within previously disturbed areas, and all affected surfaces will be restored to their pre-project condition. This project is classified under NAICS code 237110 and is currently listed as a forecast with a posted date of October 9, 2025. The City of St. Helena has issued a Notice of Exemption under CEQA, citing statutory and categorical exemptions for the replacement of existing facilities and minor land alterations, confirming that the project will not cause significant environmental effects. Project administration is led by the St. Helena Public Works Department, with Mario Traverso serving as the Project Manager and Joe Leach as the Director.