WIREFRAME · non-functional design mockup · Public Procurement — Tender / Bid Evaluation · static illustrative data (RFT-2026-0142)
RFT-2026-0142 · Concession Road 14 Reconstruction · contracting authority

Recommended Award — Northgate Civil Constructors

Lowest of 4 bids · evaluated 2026-05-28 · reviewed by DiligenceWorks
34integ.
Award-integrity score. Recommended low bid fails a mandatory gate; the field is partly rigged. Verdict: do not award · challenge · refer.
$4,180,000
Recommended award
Six adversarial checks
Price Realism Flag
Bid −29% vs $5.9M engineer estimate; asphalt & granular pay items priced below cost floor
−$1.42M shortfall
Collusion Screen Reject
Bidders C & D: shared PDF author + submission IP; identical BOQ errors; winner/runner-up rotation
refer · field tainted
Capacity & Qual. Reject
2 of 3 cited projects mis-described; backlog + this award exceed bonding capacity
$4.18M at risk
Financial Flag
Current ratio 0.9; two 2026 late-payment filings; working capital declining
completion risk
Mandatory Reject
Bid bond 5% vs mandatory 10%; Addendum 3 not acknowledged
disqualify
Scoring Integrity Flag
Methodology 20/20 on boilerplate; abnormally-low price adjustment skipped
re-rank → B 1st
Cards reveal in sequence during the demo. Green = clean (award) · Amber = flag (query / re-evaluate) · Red = reject (disqualify / refer). Each figure is traceable (see audit drawer).
Exception report
ItemCheckFindingClaimedSupportedDeltaSource
Bid A · pricePrice RealismBid $4.18M vs engineer estimate $5.90M (−29%); asphalt & granular pay items below realistic cost floor$4,180,000$5,600,000$1,420,000Estimate · cost floor
Bids C & DCollusionShared PDF author + same submission IP; identical transposition errors in 3 BOQ lines; C/D alternated winner/runner-up over 2 prior tendersrefer*Metadata · award history
Bidder A · qual.Capacity2 of 3 cited references are sub-$1M resurfacing mis-described as arterial reconstruction; backlog $2.1M + this $4.18M > $5.0M bonding capacity$4,180,000$4.18M riskReferences · surety letter
Bidder A · fin.FinancialCurrent ratio 0.9 (<1); two late-payment filings (2026); working capital declining three quarterscompletion riskFiled accounts · credit
Bidder A · MRMandatoryBid bond 5% vs mandatory 10% (MR-1); Addendum 3 not acknowledged (MR-2) — a non-compliant bid must be disqualified$4,180,000$0$4.18M voidMR schedule §4.2
EvaluationScoringMethodology scored 20/20 on boilerplate not addressing project constraints; price-score formula applied without the mandated abnormally-low adjustment — re-rankB ranks 1stRFP s.5.3 · score sheet
Total exposure / value at issue$1,420,000*plus $4.18M disqualified + collusion referral
Recommended position
$0
Award-ready
$1.42M
Query · re-evaluate
$2.76M
Reject · refer
Export evaluation report + audit trail (PDF) Send to e-procurement (stub) Accept / override flags
Audit drawer (on click): Source = mandatory-requirements schedule §4.2 — bid bond 10% mandatory (MR-1); all addenda acknowledged (MR-2). Bidder A's envelope: 5% bond; Addendum 3 not acknowledged → mandatory non-compliance; a non-compliant bid must be disqualified, not negotiated. Recommendation: reject the recommended award; re-evaluate the compliant field — next clean, financially-sound bid is Bidder B at $5.84M (a clean award costs +$1.66M; the low-bid “saving” was illusory).

Program trend — this procurement programme

$22.4M
flagged across 96 tenders evaluated YTD — the programme-level integrity view no e-procurement workflow tool surfaces
Bars = $ flagged per month · amber = above-threshold. Anchors: OECD — bid-rigging inflates prices ~20%; UK CMA ~£60m across 10 construction firms; UK Procurement Act 2023 debarment list. Carillion is the abnormally-low / contractor-insolvency pattern — caught here on a $4.18M award before signature.
Mockup only — illustrative figures, no live engine. Bidders & authority are synthetic; OECD red flags are the documented pattern, not an accusation. Final figures come from the six-check engine per DESIGN-public-procurement-tender-evaluation.md.