County Road 64.6 over Plateau Creek
Mesa County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 64.6 over Plateau Creek in Mesa County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2014, making it 11 years old at the 2025 inventory.
- It carries about 23 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 105 of the 321 inventoried bridges in Mesa County rated good (32.7%); 6 (1.9%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (39.21186, -107.76552)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 32 ft |
| Location | 1.2 MI SE Road N.5 |
| NBI structure number | MESA-64.6-NE |
| Condition class | Good |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Mesa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 25 Road over Rvrsd Pw Ind Av UPRR | 2009 | 40,819 | Good |
| I 70 Business Rt over Leach Creek | 1968 | 26,000 | Fair |
| Patterson Road over Grand Valley Canal | 1985 | 24,727 | Fair |
| I 70 Ml over Indian Wash | 1964 | 22,000 | Fair |
| I 70 Ml over Lewis Gulch | 1964 | 22,000 | Fair |
| I 70 Ml over Horsethief Creek | 1980 | 18,000 | Fair |
All bridges nearby: Mesa County, CO bridge conditions · every bridge in Mesa County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.