ID 527617
Archived
Sonoma County
Owner Reference: M20201
Bid Date: 03/03/2020 at 02:00pm
Estimate: $4,359,265
The Sonoma County DOT and Public Works Department is inviting bids for all labor, tools, equipment, and expenses to provide Chip, Slurry Seal, Microsurfacing and Cape Seal treatments (M20201) as well as associated flagging, traffic control, crack sealing, ditch cleaning, pavement delineation, and replacement of asphalt concrete surfacing (digouts). The Double Chip Seal treatment process includes the application of asphalt emulsion or binder on existing traveled way pavement, followed by 1 layer of aggregate chips, which are embedded into the asphaltic emulsion or binder. This process is then repeated for a second layer of binder and aggregate. Finally a tack coat (seal coat) is applied from edge of pavement to edge of pavement. The Slurry Seal treatment is the application of a mixture of asphalt emulsion, water, well-graded fine aggregate, and mineral filler that has a fluid like appearance when applied. This treatment is applied from edge of pavement to edge of pavement. The Microsurfacing treatment is similar to slurry seal. It consists of the application of a mixture of water, asphalt emulsion, aggregate (very small crushed rock), and chemical additives to an existing asphalt concrete pavement surface from edge of pavement to edge of pavement. The Cape Seal treatment includes the chip seal (or scrub seal) treatment followed by the slurry seal treatment for the finished surface. The scrub seal is a chip seal in which the asphalt emulsion bottom layer is placed using brooms and then aggregate chips are embedded. Bonds required. Prevailing wages apply. Time to complete is 60 working days.
County of Sonoma, DOT/Public Works, CA
Don Moore
(707) 565-2231
(707) 565-2620
Published 02/05/2020 on Construction Bid Source
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