Wyo 345 over Unnamed Draw
Sheridan County, Wyoming · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Wyo 345 over Unnamed Draw in Sheridan County, Wyoming, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1952, making it 73 years old at the 2025 inventory.
- It carries about 543 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 37 of the 170 inventoried bridges in Sheridan County rated good (21.8%); 9 (5.3%) 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 June 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 → (44.92961, -107.21274)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 22 ft |
| Location | Montana Line - Sheridan |
| NBI structure number | BAQ |
| Condition class | Good |
| 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 Sheridan County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-90/US 14/87 Bus over Little Goose Creek | 1980 | 19,102 | Good |
| I-90/US 14/87 Bus over Little Goose Creek | 1954 | 11,489 | Good |
| 5th Street over Big Goose Creek | 1968 | 9,363 | Poor |
| Wyo 334 over Little Goose Creek | 1993 | 7,061 | Fair |
| I-90/US 14/87 Bus over I-90 | 2017 | 6,639 | Good |
| I-90/US 14/87 Bus over Big Goose Creek | 1987 | 6,539 | Good |
All bridges nearby: Sheridan County, WY bridge conditions · every bridge in Sheridan County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.