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- 2021 Four Lagging Walls Construction Project: Dry Creek Rd. and Diamond Mtn. Rd.
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The proposed project consists of storm slide repair with lagging/retaining walls and roadway reconstruction caused by the 2017 and 2019 damage in Napa County. The project will commence along: Dry Creek Rd. MPM 6.2, RDS 21-30, Dry Creek Rd. MPM 9.48, RDS 21-39, Dry Creek Rd. MPM 9.75, RDS 21-06 and Diamond Mountain Rd. MPM 1.1, RDS 21-04.
Engineer Estimate: $2,015,000. The Contractor shall possess a Class A License at the time of contract award.
The bid documents are available for viewing and download in the link below. Addendum 1 was added. Addendum 2 was added with new plansheets on 03/25/22. The bidders list is posted. Addendum 3 has been added. Addendum 4 has been added. The bid opening was 04/07/22 at 11:30 AM, the project was awarded on 04/19/22 to Piazza Construction for their low base bid and add alt. The 3 lowest sublists sheets have been posted. The bid tabulation has been added.
| Contractor | Total Base Bid | Add. Alt Bid |
|---|---|---|
| Piazza Construction - Penngrove, CA | $2,282,930.00 | $150,716.00 |
| Granite Rock Company - San Jose, CA | $2,424,246.00 | $127,628.00 |
| Maggiora & Ghilotti - San Rafael, CA | $2,456,700.00 | $189,655.00 |
| Ghilotti Construction Co. - Santa Rosa, CA | $2,456,789.10 | $182,671.00 |
| Gordon N. Ball - Alamo, CA | $2,911,095.00 | $137,371.00 |
| Suulutaaq, Inc. - Suisun City, CA | $2,989,819.60 | $185,984.00 |