St Helena Civicplus #27

St. Helena Oak Avenue Surface Improvement Project – Street, Utility, and Accessibility Upgrades

The City of St. Helena Department of Public Works is seeking bids for the Oak Avenue Surface Improvement Project, a comprehensive street and utility upgrade initiative in St. Helena, California. - Government Buyer: - City of St. Helena, Department of Public Works - Scope of Work: - Removal and installation of curb, gutter, and sidewalk - Pavement grinding (up to 70,000 SF) and overlays (up to 974 tons of HMA) - Utility modifications, including installation and adjustment of water meter boxes (B16, Double, Traffic Rated), sanitary sewer boxes (G5), and curb inlets - Roadway striping and thermoplastic markings (white and yellow) - ADA curb ramps (10 units) and detectable warning surfaces - Tree removal (various sizes), stump grinding, and new tree planting (City Sprite Zelcova and Chinese Pistache) - Installation of tree grates, sign poles, benches, and accessible parking signage - Drainage improvements, including curb drains and new curb inlets - Products/Materials: - B16 Water Meter Boxes & Nicor Lids (11 units) - Double Meter Boxes (2 units, including traffic rated) - G5 Sanitary Sewer Boxes (3 new, 24 adjusted) - Tree Grates (6 units) - Concrete (driveways, sidewalks, curb/gutter, ADA ramps) - Hot Mix Asphalt (HMA) for overlays and leveling courses - Thermoplastic striping materials - Pavement fabric (450 LF) - Unique/Notable Requirements: - Coordination with local businesses and schools to minimize disruptions - Contractor must provide all compaction testing via an independent firm - Compliance with Caltrans Standard Specifications and prevailing wage laws - Valid Class A contractor's license required - Delivery of asphalt grindings to a specified city property - Liquidated damages for late completion - No specific OEMs or proprietary vendors are named; all materials must meet industry and Caltrans standards.

Description

The Oak Avenue Surface Improvement Project involves removing and installing curb, gutter, and sidewalk; pavement grinding; pavement overlays; utility modifications; roadway striping; and other miscellaneous work. The work will be performed according to the plans, specifications, and contract documents. The project is located on various streets within the City of St. Helena, California. The estimated construction duration is 90 working days from the Notice to Proceed, with an engineer's estimate of $2,250,000.

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