142.1 over S.f. Williams Fork River
Grand County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 142.1 over S.f. Williams Fork River in Grand County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 50 vehicles a day.
- It is one of 37 of the 88 inventoried bridges in Grand County rated good (42.0%); 5 (5.7%) 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 August 2023, 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 → (39.79746, -106.03046)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 23 ft |
| Location | No Data Entered |
| NBI structure number | 021008000012627 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Grand County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 40 Ml over UP RR | 1985 | 11,000 | Fair |
| US 40 Ml over Fraser River | 1985 | 11,000 | Fair |
| US 40 Ml over Vasquez Creek | 1938 | 11,000 | Fair |
| US 40 Ml over Crooked Creek | 1941 | 11,000 | Poor |
| US 40 Ml over Fraser River | 1942 | 11,000 | Fair |
| US 40 Ml over Pedestrian Underpass | 2004 | 11,000 | Good |
All bridges nearby: Grand County, CO bridge conditions · every bridge in Grand County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.