Structures quote vs. priced bid schedule, Route 788 over Brushy Fork
Harlan & Pryor Structures' quote for the bridge and retaining walls is $356,535 (15.5%) over the priced bid schedule. Each quote line is tied to a bid schedule line, and the whole difference is split into eight causes.
Priced bid schedule, 18 linesQuote dated Oct 28, 2026, 21 linesBridge and retaining walls RW-1, RW-2, Cottonwood Creek, MissouriPrepared Nov 5, 2026
Summary
Reinforcing steel · Lines 0100, 0130
Reinforcing steel explains $109,185, nearly a third
The quote carries 233,300 lb against 202,800 lb in the bar list for the bridge and walls. It prices shipping weight with 8% waste and bar supports, which the RFQ puts in the unit price (quote p. 4, line 7 and p. 6, line 3). The quantity adds $62,525, and the higher unit price, $2.25 against $2.05 per lb, another $46,660.
Action: ask for unit prices on the plan quantity from the bar list.
Duplicate · Lines 0090, 0110
The barrier curb is priced twice, $59,470
The curb and its epoxy-coated reinforcing appear on p. 5 (lines 3 and 4) and again on p. 7 (lines 2 and 3), with the same bid lines, quantities and unit prices. The schedule carries them once.
Action: strike p. 7, lines 2–3 from the quote.
Missing from quote · Lines 0150, 0160
Approach slabs are missing from the quote, $43,700
The quote excludes the bridge approach slabs and the vertical drains at the end bents (p. 2, exclusion 4). On equal scope and without the duplicate, the quote is $340,765 (14.8%) over the schedule.
Action: get a price for the approach slabs before leveling quotes.
The difference, step by step
Click a step in the waterfall to see the lines behind it, or a row in the table to compare the schedule line and the quote line side by side with their sources. The slider hides lines that explain less than the amount you pick.
Priced bid schedule
Quote
Quote lines and schedule lines, all linked
From bid schedule to quote
Click a step to filter the table
TotalError in the quoteDeviation to resolvePrice difference
Link
Line-by-line links
Bid line
Item
Schedule ($)
Quote ($)
Difference ($)
No lines explain more than the selected amount in this view.
Bid schedule
Quote
How the difference splits
Sources and method
Sources
Bid_Schedule_Priced_Rte788_Structures.xlsxPriced bid schedule for the bridge and retaining walls, plan quantities18 lines
Quote_HarlanPryor_Structures_2026-10-28.pdfStructures subcontract quote dated Oct 28, 2026, with basis of quote and exclusions on p. 28 pages, 21 lines
RFQ_Structures_Subcontract_Rte788.pdfRequest for quote with scope and pricing rules, Section 3.26 pages
Reading. The quote's 21 lines were read from the PDF with page, line, bid line reference, description, unit, quantity and unit price. The schedule's 18 lines were read from the spreadsheet with row numbers.
Linking. Each quote line was tied to the bid schedule line it references, checked against the description. Lines with no reference are quote only. A quote line with the same bid line, quantity and unit price as a line already linked was flagged as a duplicate.
Split. For linked lines in the same unit, the difference was split into quantity, (quote quantity − schedule quantity) × schedule unit price, and unit price, (quote unit price − schedule unit price) × quote quantity. Quantity differences that come from a different measurement basis are shown separately.
Other steps. Lines in a different unit were compared on amount using the quote's conversion factor. Schedule-only lines count as negative, quote-only and duplicate lines at their full amount. Mobilization was compared as one lump sum.
Check. The eight steps add up exactly to the $356,535 difference, and each link adds up to its own difference.
Assumptions and limitations
Descriptions and units follow the pay item style in the bid schedule. Bid line numbers are the project's own. The schedule has no separate formwork lines, so forms are carried in the concrete unit prices.
Backfill is converted from tons to CY at the quote's 1.7 tons per CY. A different factor moves dollars between unit of measure and unit price but does not change the total.
The quantity differences in wall excavation and form liner are not explained in the quote and were not checked against the plans.
Cold-weather protection, the pump truck and the sealer count as additions because the schedule has no lines for them. If the special provisions require a sealer, it belongs in the schedule's scope.
Bonds, escalation and payment terms are not part of this comparison.
The schedule unit prices are the company estimate and have not been checked against current MoDOT bid prices. Whether the approach slabs belong in the structures subcontract is a scope choice. The estimator should confirm both before leveling quotes.