Wyo 270 over Miller Draw
Platte County, Wyoming · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Wyo 270 over Miller Draw in Platte County, Wyoming, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1982, making it 43 years old at the 2025 inventory.
- It carries about 542 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 50 of the 159 inventoried bridges in Platte County rated good (31.4%); 15 (9.4%) are rated poor.
- 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 → (42.55339, -104.69454)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 50 ft |
| Location | Hartville-Manville |
| NBI structure number | FGF |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Platte County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 87 Bus over I-25 | 1975 | 6,322 | Good |
| US 26 over North Platte River | 1983 | 4,832 | Fair |
| I-25 NBL and SBL over Rock Creek | 1975 | 3,865 | Fair |
| I-25 Nbl over Machinery Pass | 1966 | 3,743 | Poor |
| I-25 Nbl over Laramie River | 1966 | 3,743 | Good |
| I-25 Nbl over Laramie River Road | 1966 | 3,743 | Fair |
All bridges nearby: Platte County, WY bridge conditions · every bridge in Platte County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.