County awards $504,745 contract to Ragnus Brothers for tile/drainage project
Summary
After opening multiple bids for BD11 Sub 1 tile improvements, supervisors accepted Ragnus Brothers' reinforced-concrete base bid of $504,745.25 and discussed inspection and material differences between RCP and plastic pipe.
County staff opened seven bids for the BD11 Sub 1 tile and drainage improvement project and tabulated apparent low totals for reinforced concrete and a lower plastic alternate. The low reinforced-concrete base bid was from Ragnus Brothers at $504,745.25; the low plastic alternate was Denver Underground at $458,541. Staff noted the concrete option generally carries fewer long-term inspection risks but that plastic can be acceptable if installed and backfilled per the higher-spec contract.
After staff reviewed bid arithmetic and explained differences in required rock/backfill and deflection testing for dual-wall plastic, a supervisor moved and the board voted to accept Ragnus Brothers' reinforced-concrete bid and authorize staff to finalize notice of award and contract documents. Staff said the contractor must provide insurance, submittals and as-built documentation and the completion date is in the contract.
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