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2022 County Bridge 51539 on Co Rd 86

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Bid Information

Bid Alert No: 00002759231

Bid Title: 2022 County Bridge 51539 on Co Rd 86

Agency Bid No. Title: SAP 051-598-012

Received Date: 09/22/2021

Close Date: 10/19/2021

Purchase Type: Not Stated

Delivery Point: Murray County, Minnesota

Delivery Date: Not Stated


Specifications include, but are not limited to: The provisions of 2401, Concrete Bridge Construction, are supplemented as follows:Add the following to 2401.3.G:Do not open traffic adjacent to barriers and parapets until the concrete has reached a compressive strength of 4,000 psi.Minimum strength required to pull forms from deck for slab span bridge shall be 65% of 28-day compressive strength.Minimum strength required to open slab span bridge to traffic shall be 100% of 28-day compressive strength, unless otherwiseapproved by the Engineer. Minimum strength to apply other loads shall be 100% of 28-day compressive strength, unless otherwiseapproved by the Engineer, depending on type and intensity of load. Method to determine in-place concrete strength shall be Maturityor Control Cylinders.SB-8.1 Slipforming of Bridge BarrierThe provisions of 2401.3.H.1, "Reinforcement Bars," are supplemented as follows:Add the following to 2401.3.H.1:29For slipform construction, tie 100% of the reinforcement bar intersections in the barrier.SB-8.2 Add the following to 2401.3.F.3.b(1), "General":At least two weeks in advance of casting Bridge Slab concrete, provide the Engineer withdetailed plans for placing the concrete, including the scheme for supporting screed rails for the Bridge Slab and schedules setting forththe rate of concrete delivery. Place the concrete at a minimum rate of 50 cubic yards per hour.If concrete is cast by means of a pumping operation, maintain a standby pump or crane capable of delivering an uninterruptedflow of concrete in case of a pump breakdown.SB-8.3 Special Surface Finish of Concrete SurfacesAt the Contractors option, follow the subsequent provisions for SSF II or SSF as a whole for all elements receiving specialsurface finish on this project. Use only one of the systems per structure.SB-8.4 Special Surface Finish II (SSF II)A. Description of WorkDelete the contents of 2401.3.F.2.c, "Special Surface Finish," and substitute the following:The work consists of the preparation of the concrete surfaces, cleaning the surfaces, furnishing and apply a single componentSSF II finish on structure surfaces required by the contract. Follow the approved Quality Control Plan to produce a surface uniform intexture and appearance. Final approval of appearance will be made by the Engineer.B. MaterialsUse only one Department-approved product to apply a concrete coating to the entire structure that meets the need foraesthetics and chloride protection as listed on the MnDOT Approved/Qualified Products List for "Special surface finish II coatings,"

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Bid Related Attachments

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Product Codes: 91313, 91366, 92518

Agency Information

Issuing Agency: County of Murray

State: Minnesota

Agency Type: State and Local

Contact: 2500 28th Street, Slayton, Minnesota, 56172



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