ID 582927
Archived
San Diego County
Owner Reference: K-21-2019-DBB-3
Bid Date: 05/20/2021 at 02:00pm
Estimate: $1,540,000.00
Hawthorne Basin work includes demolition of the existing gravel road, riprap drainage channel, down drain termination structure, and clearing and grubbing. Following demolition, the Hawthorne Basin will be excavated and a concrete lined earthen embankment, spillway, skimmer, outlet structure, and culvert will be installed. A new 36” HDPE down drain, inlet protection, and Type 2 energy dissipater will also be installed at a location further upstream of the basin. A new Type 2 energy dissipater will also be installed at the termination of the existing 36” CMP down drain. West Basin Skimmer/Pump System includes installation of a floating pump/skimmer with driven piles, diesel generator, and gravel staging pad. East Basin expansion work includes removal and salvage of the existing Type 2 energy dissipater, metal down drain flume, and a section of a 36” CMP storm drain; demolition of the existing standpipe, trash rack, and clearing & grubbing. Following demolition, the East Basin will be expanded and the Type 2 energy dissipater and metal down drain flume will be re-installed. A new outlet structure and skimmer will also be installed. Areas identified as erosion control areas will be stabilized with vegetation through soil preparation and application of hydraulically applied stabilizers (hydroseed and hydromulch). Straw wattle slope interruption devices will also be installed. Grade, moisture condition soil, and apply hydro-seed and hydraulic mulch in disturbed areas at Project Close-Out as indicated on Construction Drawings. Contract close-out and de-mobilization. Project duration is 120 working days. Bonds required. Prevailing wages apply. Subject to participation requirements for SLBE program.
City of San Diego, Public Works Contracts, CA
Celina Suarez
(619) 533-6678
(619) 533-3633
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Published 04/19/2021 on Construction Bid Source
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