Cb Cnty Rd 3 over Medicine Bow River
Carbon County, Wyoming · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cb Cnty Rd 3 over Medicine Bow River in Carbon County, Wyoming, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1915, making it 110 years old at the 2025 inventory.
- It carries about 59 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 19 of the 206 inventoried bridges in Carbon County rated poor (9.2%); 19 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: deck 3 to 4.
- Its most recent inspection on record is dated August 2024, on a 12-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (41.7246, -106.31852)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 3 | 4 | Poor condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel through truss |
| Length | about 94 ft |
| Location | 8 Mi. Ne Of Elk Mountain |
| NBI structure number | DNC |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
| Fracture critical (item 92A) | Yes |
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.