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Page 6 of 7 construction material storage or activities. • A question was asked if Builder's Risk Insurance, per the contract, is necessary. The requirement for Builder's Risk Insurance will be addressed in the addendum. • A question was asked about the application of Polyacrylamide on all disturbed areas but it's not clear as to how long after earthwork activities the application should take place. James Ennis stated the application should be part of the Contractor's SWPPP (Stormwater Pollution Prevention Plan) best management practices for dust control and that application rates/frequency should be based upon the Contractor's monitoring that should take place so that dust doesn't become a pollutant. • The adjacent project, IRC -1325: 58th Avenue Full Depth Reclamation, is already complete and no project coordination is necessary. • No insurance for the FEC (Florida East Coast) Railroad will be necessary as no work shall take place within their right of way. • Fuel and bitumen adjustment costs are excluded from County projects. • The cross section sheets numbered 64-79 reflect a difference in design from the existing crown section to the proposed cross slope section. A question was asked how correct quantities would be accounted for and how they would be paid. Brian Good stated the additional quantities were accounted for in both base rock items. He stated it can be quantified during construction by the station limits in the plans, and that a pay item for the additional tonnage of Coquina base material will be provided. • It was stated that the cross section stations are every 100' and there is concern that in between the stations there could be a design quantity deficiency. Brian Good stated any deficiency would have to be addressed as it was found and James Ennis stated anything as such would need to be identified prior to breaking the road surface. • A Contractor stated there is concern as to how the maximum percentage of material passing the No. 200 sieve was to be achieved. Brian Good stated the core samples tested were well below the maximum allowed. It is not the intent for the Contractor to have to make those changes if there were an area that exceeded the amount allowed and it would have to be addressed at the time it occurs. He stated that situation may require a change to the amount of base replacement. James Ennis stated if soil conditions unexpectedly changed in a manner that was substantially different compared to what was expected in the mix design then the mix design would have to be adjusted accordingly and that the, the purpose of the contingency fund was to address these types of unexpected field conditions. • Brian Good stated that the quantities for sod were determined based on where soil disturbance will take place, which is from the north right of way of 69th Street to either the south right of way or the top of the bank of the Sub -Lateral Canals. • It was stated that mowing does not have a separate line item. Mowing is included in the Mobilization Pay Item No. 101-1. • A question was asked about the proposed cross slope changes that will take place. Brian Good confirmed the only places where this occurs is where this project will transition into an existing condition, usually within a distance of 50'. • The roadway pay item for Mail Box, furnish and install, was clarified that the intent is for the old mail boxes to be removed and new mail boxes to be installed. However, coordination with the property owner will be required to confirm they agree with the replacement. F:\Public Works\ENGINEERING DIVISION PROJECTS\1639 69th Street 66th Avenue to US -1 Resurfacing (SCOP)\1- Admin\Meetings\PreBid\IRC-1639_PREBID_MIN_ 20220316.docx