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FACT A
Honesty Framework
The label says how we know the figure. The grade rates the source record, not the project.
The grade rates the source record, not the project.
CDOT · Transportation
I-70 Floyd Hill Improvement Project
Westbound third lane, new canyon viaduct & interchange rebuild (8 mi, Clear Creek County). Timeline 2023–2029.
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Est. total cost
$905M
Delivery stage
● Underway
Paid so far, to whom PENDING
No payment published yet.
2 vendor rows below; per-vendor payments are pending TOPS ingestion.
Your take on this project
Latest public update
CDOT's 2025 cost-to-deliver estimate is $905M, up from the 2020 estimate of $700M, citing construction and material costs.
Open questions for the state ANALYSIS
- What are the specific cost drivers behind the rise from $700M (2020) to $905M (2025)?
- Is the 2026 excavation season on track to hold the westbound 2027 opening?
Fiscal position
Total project cost$905M
Total cost & funding are drawn from the official record(s) listed below.
Spend-to-date: not published. Colorado does not publish what it has spent on this project, so this field is left blank rather than estimated. It will fill from TOPS/CORE vendor expenditure data as payments are matched to projects.
Milestones
- Design & NEPA complete — 2021
- Construction began — July 2023
- Rock excavation & bridge structures — through 2026
- Westbound new alignment open — end 2027
- Eastbound alignment open — end 2028
- Full completion — 2029
Estimate, first to current FACT
first public estimate → current+$205M · +29%
2020 CDOT estimate → 2025 CDOT estimate$700M → $905M
Watchlist average drift+50% per project · +23% dollar-weighted
Both endpoints are drawn from the source records below; the change, percentage, and average are our arithmetic (CALC). The average covers the 5 of 50 tracked projects with two published estimates — for the rest, the state has published a single figure, so their drift is unknowable, not zero. Estimates move in both directions — we show the honest record either way.
Who is being paid FACT
Funding sourceState (SB 267 / Transportation Commission funds) plus federal INFRA/MEGA grants.
| Vendor | Contract / value | Paid to date | Confidence |
|---|---|---|---|
| WITHHELDConstruction manager / general contractor (CM/GC) | $905M program | PENDING | A |
| WITHHELDLead design engineer — 6-year design contract (2022) | $31M design | PENDING | B |
The money is published; the names are held. Each row below carries the contract value, what has been paid to date so far as it is published, and our confidence grade — the same figures as always, from the same official records. What is withheld is the vendor's name, the record link that names it, and the campaign-finance search that sat beside it. That is a deliberate decision taken pending legal review, not a figure we could not find: a blank cell would have said the opposite. What WITHHELD means
Source records
- ACDOT — I-70 Floyd Hill project page (codot.gov)read 24 September 2026
- BNews coverage of $905M scopePENDING no link on filedated 2025–26