The bill‑of‑materials spreadsheet lists 185 FRP decking panels, several hundred steel joists, brackets, rivets, and ancillary hardware. Assuming an average cost of $200 per FRP panel ($37,000), $150 per steel joist/bracket assembly (≈150 units → $22,500), $5 per rivet (≈9,500 rivets → $47,500), and $10 per decking clip (2,200 clips → $22,000), the material subtotal is roughly $130,000. Adding engineering, coating, freight (FOB destination), warranty extensions, and a modest contractor markup (≈30 %) brings the total to about $170,000. However, the agency’s preference ceiling (up to $100 k) and typical state procurement thresholds suggest the final award will likely fall in the $300‑$500 k range to accommodate ancillary costs, taxes, and contingency. Therefore a reasonable ball‑park estimate is **$500,000**.