3308: Cow Butte R over Canary Grove
Carbon County, Wyoming · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 3308: Cow Butte R over Canary Grove in Carbon County, Wyoming, 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 2019, making it 6 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2023).
- It is one of 64 of the 206 inventoried bridges in Carbon County rated good (31.1%); 19 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated August 2023, 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 → (41.39403, -107.41668)
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 | Steel stringer or multi-beam girder |
| Length | about 29 ft |
| Location | 30 mi SW of Rawlins WY |
| NBI structure number | 0000000L2125554 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Carbon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 Wbl over West Sinclair Intg | 2000 | 7,909 | Good |
| I-80 Wbl over UPRR / Wyo 76 | 2000 | 7,909 | Good |
| I-80 EBL and WBL over Sugar Creek | 2000 | 7,637 | Fair |
| I-80 Ebl over West Sinclair Intg | 2001 | 7,637 | Good |
| I-80 Ebl over UPRR / Wyo 76 | 2001 | 7,637 | Good |
| I-80 Wbl over Two Mile Draw | 1963 | 7,404 | Fair |
All bridges nearby: Carbon County, WY bridge conditions · every bridge in Carbon County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.