US 287 over Muddy Creek
Carbon County, Wyoming · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 287 over Muddy Creek in Carbon County, Wyoming, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1959, making it 66 years old at the 2025 inventory.
- It carries about 2,546 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 123 of the 206 inventoried bridges in Carbon County rated fair (59.7%); 19 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 7 to 8.
- Its most recent inspection on record is dated June 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (42.34501, -107.46305)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 8 | Very good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 111 ft |
| Location | Rawlins - Muddy Gap Jct |
| NBI structure number | BTY |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 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 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.