Glacier Basin Road over Glacier Creek
Larimer County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Glacier Basin Road over Glacier Creek in Larimer County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1982, making it 43 years old at the 2025 inventory.
- It carries about 80 vehicles a day (traffic count year 2019).
- It is one of 275 of the 562 inventoried bridges in Larimer County rated fair (48.9%); 12 (2.1%) are rated poor.
- 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 → (40.33028, -105.59908)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 33 ft |
| Location | Entrance to Glacier Basin |
| NBI structure number | 1520018P0000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Larimer County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I25 Ml Nbnd over Poudre River Floodplain | 2022 | 90,000 | Good |
| I25 Ml Sbnd over Poudre River Floodplain | 2023 | 90,000 | Good |
| I 25 Ml over Hillsboro Tributary | 2020 | 86,000 | Good |
| I 25 Ml Nbnd over County Road 16 | 2022 | 86,000 | Good |
| I 25 Ml Sbnd over County Road 16 | 2023 | 86,000 | Good |
| SH 402 Ml over I25 Ml | 2020 | 86,000 | Good |
All bridges nearby: Larimer County, CO bridge conditions · every bridge in Larimer County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.