The contract is for the fabrication and delivery of portable steel vehicular
bridges to multiple locations in Tennessee and North Carolina. The delivery of the first bridge is estimated within 12 weeks of award, with subsequent
bridges delivered every 4 weeks. The government reserves the right to inspect the bridge at the plant during fabrication and before offloading. The contractor guarantees the bridge against defective material and workmanship for one year from the date of acceptance. The contractor must provide notice of delivery to the technical point of contact at least 14 days prior to the scheduled delivery. The delivery shall be FOB destination to the delivery warehouse. Delivery shall take place Monday-Friday 8:00 AM - 4:30 PM, excluding federal holidays, unless otherwise approved by the contracting officer. The offeror must provide shop drawings, design calculations, and load rating calculations for the bridge superstructure and decking, sealed by a professional engineer. The steel shall be new, of domestic origin, and of minimum strength as indicated in stringer calculations. The fabrication and erection of steel components shall be in conformance with the AISc, steel construction manual, 15th edition, 2017. The contractor shall provide clear instructions on proper bridge assembly using standard industry construction equipment. The bridge design shall allow for simple assembly that facilitates quick install, including a preinstalled decking system. Hinged wingwalls and a timber wearing surface shall be included with the bridge either preinstalled or allowing for easy assembly. The bridge foundation shall bear on permanently installed sand shoes and also have the option to be bolted to a prefabricated concrete foundation. The contractor shall provide a protective coating system for the steel in conformance to the applicable industry standard for the coating system. If black steel is utilized, provide as a minimum protection system one coat epoxy primer and one coat urethane topcoat, applied per manufacturers recommendations. The contractor shall provide decking that meets HL93 live load requirements. If timber decking is used, clearly identify the tree species and dimensions and include decking calculations that show live loading requirements are met. The contractor shall provide a permanently installed steel sand shoe abutment for the temporary bridge that meets HL93 live load requirements and all AASHTO LRFD bridge design specification requirements. The contractor shall provide precast concrete sill or equal if proposing an alternative foundation as a bearing surface, with an assumed soil bearing capacity of **** psf. The contractor shall furnish all steel shapes, plates, and bars in conformance with AASHTO M270 grade 36 ASTM A36. The contractor shall provide a barrier system on the bridge, to include reflector tabs 2-sided crystal at alternate posts. The rail system is owner designated, is not required to meet geometric requirements of LRFD, and is not required to meet crash-tested, though it should be a configuration that redirects traffic if impacted. The delivery of the prefabricated steel
bridges shall occur no later than October 1, 2025.