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Oversize Load Permit Requirements — Colorado
Legal size/weight limits, escort thresholds, travel restrictions, and permit office contact for Colorado.
These figures are a reference summary of publicly published state rules, not a substitute for a state-issued permit and not legal advice. Rules change — always confirm current limits and requirements directly with the state permit office before you plan or run a move. Last verified: 2026-06-28. Oversize Ops is NOT responsible and CANNOT be held liable for decisions made from this reference. Official source ↗
Legal Maximum Dimensions (no permit required)
- Width
- 8.5ft (102in)
- Height
- 14.5ft (174in)
- Length
- 53ft
- Gross Weight
- 85,000 lbs
- Single Axle
- 20,000 lbs
- Tandem Axle
- 36,000 lbs
Escort / Pilot Car Thresholds (see glossary for terms, certification requirements for the driver)
- Front escort required over
- 11ft wide
- Rear escort required over
- 11ft wide
- Both escorts required over
- 11ft wide
- Height escort required over
- 16ft tall
Front escort >12ft, both escorts >14ft. Certified escorts required. Mountain passes have additional restrictions.
Travel Restrictions
- Night travel
- Generally allowed
- Weekend travel
- Generally allowed
- Sunday travel
- Generally allowed
Night travel restricted on mountain passes. Seasonal closures apply on many mountain routes.
Holiday blackouts: Major US holidays.
Superload Thresholds
- Width over
- 15ft
- Length over
- 150ft
- Weight over
- 200,000 lbs
Estimated Permit Cost Verify before relying
$15 oversize / $15 + $5 per axle overweight / $125 special — doubled by SB09-108 surcharge
Source: CDOT "FYI: Legal Load and Permit Info" — verify current fee with the permit office before budgeting a move.
Permit fee only — does not include escort/pilot-car service costs (market-rate, arranged separately) or third-party permit-service fees. This is an estimate for planning purposes, not a quote.
Get a Permit
- Online portal
- https://coopr.codot.gov/
- Phone
- 1-303-757-9539
Mountain pass restrictions vary seasonally. I-70 mountain corridor has specific time restrictions.
Planning a move through Colorado?
Plan a truck-legal route that checks bridges and construction, or find a vetted transporter or escort.
Try the Route Planner Find an Escort