C05_Amendment 0002-Contractor RFIs_1232SA26Q1017.pdf
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- Attached to
- 1232SA26Q1017 - Amendment 00002 Combined Synopsis-Solicitation Bison Handling Equipment USDA ARS MWA Ames IA
- Solicitation number
- 1232SA26Q1017
About this file
This document is a Contractor RFIs/Government Responses record addressing three clarification questions regarding a bison handling system installation.
Concrete and Traction-Stamped Surfaces: The Government clarified that traction-stamped concrete is currently limited to the existing concrete pad covering the chute, load out, and circular alleyway. Additional concrete may only be required for center pivot placement, though alternative securing methods for the center pivot are permissible. No specific allowance quantity was mandated, leaving flexibility for contractor estimation.
System Placement and Footprint Constraints: The Government provided detailed site orientation guidance, specifying that when standing at the center pivot with the chute behind, the building is to the left and pasture to the right. The system design includes four 10' x 10' pens with catwalks, leading to the center pivot with access gates to both a field barn and pasture alleyway. The handling system footprint is constrained to a maximum of 28-30 feet west and 28-35 feet south from the southeastern corner of the field barn on the concrete slab, which extends approximately 50 feet in both directions. The center pivot should remain approximately 4-5 feet from the concrete slab, and the southern boundary fence must not interfere with system operation.
Design Approval and Post Hole Specifications: The Government indicated that the center pivot pole must be secured to prevent movement or leaning, with specific depths dependent on design. While design approval requirements should be directed to contracting personnel, the Government suggested that a system specifically designed to handle bison would be acceptable, implying design flexibility provided it meets functional requirements for bison handling operations.
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Contractor RFIs/Government Responses
1. Section 6.b calls for traction-stamped concrete "in any high traffic areas specified by the customer." Which areas, and approximately how much — or should we carry an allowance?
Right now there is a concrete pad encompassing the area of the chute, load out, and circular alley way leading to the chute. Based on a previous install, I would assume that the only additional concrete would be needed for placement of the center pivot of the half circle. It might also be possible for the center pivot for the half circle to be secured differently other than concrete.
2. Where on site should the system sit, and in what orientation? Specifically, what is the "building (right) side" in Section 5.f, which barn opening does the Section 5.e gate serve, and is there a maximum footprint we should stay within?
When standing in the center pivot (with the chute behind you) the building is to your left and the pasture is to your right. Our plans are for the series of 4 pens leading to the center pivot with sizes approximately 10' x 10' with the pens separated from the side of the building by a catwalk.
The catwalk allows personnel to put pressure on the animals on all sides of the pens and prevents the animals from positioning themselves in a back portion of the pen where personnel cannot get to them. The pen closest to the center pivot has a swinging gate that can be opened allowing access into the field barn. where feeding bunks are placed The opening for this gate aligns with the southeastern corner of the building (i.e. the northern portion of the last crowding pen is fairly closely aligned with the SE corner the field barn). The crowding pen farthest from the center pivot has 2 swinging gates, 1 which opens into the pasture and another that opens into an alleyway that leads to a field barn to the north.
The concrete slab extends approximately 50 feet to the south and 50 feet to the west.of the SE corner of the field barn Because of the placement of feed bunks on the concrete, we would prefer that the handling system (including load out) not extend more than 28 to 30 feet west onto the concrete pad (from the SE corner of the building). The system can extend to 28 to 35 feet to the south and encompass the majority of that portion of the concrete slab. A fence on the south side of the slab would need to remain and the system cannot extend in such a manner that this fence interferes with the handling system operation. Just for reference, the most recent system we installed has the center pivot for the half circle approximately 4 or 5 feet away from the concrete slab.
3. Section 6.a references post hole depths "specified in design documents." Is Government approval of our design submittal required before fabrication release, and if so, what review turnaround should we plan for?
I am not certain regarding post hole depths. The pole for the center pivot will need to be secured in such a manner that it does not move or lean. Dependent upon the design, other portions of the system may not need to be secured into the ground. It would be a question for contracting personnel regarding approval of your design but I would think a system specifically designed to handle bison would be acceptable.
File details come from the government source that posted it. Updated .