TRAIL BRIDGE YOCKANOOKANY SECTION 140P5225R0019

TRAIL BRIDGE YOCKANOOKANY SECTION FY25 Natchez Trace Parkway Install I-beams and concrete abutments for Yackanookay Trail Bridge The National Park Service, Contracting Operations East, hereby issues a combined synopsis/solicitation for a requirement of the Natchez Trace Parkway. It is the intent of this service contract to provide all labor, materials, tools, equipment, and supervision to install steel I-beams and concrete abutments for a 50-foot trail bridge on the Natchez Trace National Scenic Trail in Madison, Mississippi. Please see the Statement of Work for more details. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. The NAICS code for this acquisition is 237310. It is the contractor's responsibility to be familiar with applicable clauses and provisions. This acquisition shall result in award of a firm fixed price contract. **A site visit is scheduled for July 10th, 2025 at 2:00 CT at MP 109 on the Natchez Trace Parkway located in Madison, MS.** The selection will be made by evaluating proposals based on cost, technical approach, and relevant experience. Bidders must be able to provide a registered UEI# and references of applicable experience in order to receive the award. Bids must arrive by electronical to tara_clark@nps.gov by the closing date noted in this solicitation. Christopher Ellington, COR Trail Coordinator Natchez Trace Parkway, National Park Service 601-416-0532 Christopher_Ellington@nps.gov Tara H Clark Contracting Specialist Contracting Operations (ConOps) East National Park Service, DOI 662-372-0363 Tara_clark@nps.gov

Amendment 0001: Please email tara_clark@nps.gov to RESVP to the site visit on July 10th 2025. TRAIL BRIDGE YOCKANOOKANY SECTION FY25 Natchez Trace Parkway Install I-beams and concrete abutments for Yackanookay Trail Bridge The National Park Service, Contracting Operations East, hereby issues a combined synopsis/solicitation for a requirement of the Natchez Trace Parkway. It is the intent of this service contract to provide all labor, materials, tools, equipment, and supervision to install steel I-beams and concrete abutments for a 50-foot trail bridge on the Natchez Trace National Scenic Trail in Madison, Mississippi. Please see the Statement of Work for more details. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. The NAICS code for this acquisition is 237310. It is the contractor's responsibility to be familiar with applicable clauses and provisions. This acquisition shall result in award of a firm fixed price contract. **A site visit is scheduled for July 10th, 2025 at 2:00 CT at MP 109 on the Natchez Trace Parkway located in Madison, MS.** The selection will be made by evaluating proposals based on cost, technical approach, and relevant experience. Bidders must be able to provide a registered UEI# and references of applicable experience in order to receive the award. Bids must arrive by electronical to tara_clark@nps.gov by the closing date noted in this solicitation. Christopher Ellington, COR Trail Coordinator Natchez Trace Parkway, National Park Service 601-416-0532 Christopher_Ellington@nps.gov Tara H Clark Contracting Specialist Contracting Operations (ConOps) East National Park Service, DOI 662-372-0363 Tara_clark@nps.gov

Amendment 0002 We had a few questions so we are sharing the answers below. All other terms, conditions, and times remain the same. BIDS ARE DUE JULY 17,2025 AT 2:00CT. One question, I noticed the highlighted area regarding delegated design on pdf page 2. Does this mean that minor design details can be delegated to the contractor? The delegated design would be for the pre-fabricated bridges. Those are the only elements that are not designed since they will be built by a manufacturer. Can the diaphragms be bolted instead of welded to the girders? Yes they can. Does the diaphragm connection bracket need to be on both sides of the diaphragm in addition to each end of the diaphragm? Yes Do the bearing plates need to be welded to the girders? Yes they do. Do the hardware, girders, bearing plates, diaphragms, nailer angle need to be coated in any way? It would be best if they were to minimize corrosion over time. They can be galvanization (zinc coated), epoxy coated, or powder coated Do we need to include the steel angle nailer bracket if so please provide the spacing? The nailers are spaced a maximum of 5 oc along the length of the bridge. They can be less than 5 to allow for them to be evenly spaced along the length. Would these minor design alterations fall within that delegated design? Or should we maintain no deviation from the design we have now? Typically, not. It would be best to maintain no deviation from the plans