County Road 4 over Denver Hudson Canal
Weld County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 4 over Denver Hudson Canal in Weld County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 2001, making it 24 years old at the 2025 inventory.
- It carries about 22 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 376 of the 608 inventoried bridges in Weld County rated fair (61.8%); 21 (3.5%) 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 → (40.01502, -104.57412)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 40 ft |
| Location | 0.6 Mi. E. of Co. Rd. 51 |
| NBI structure number | WEL004.0_051.0A |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Weld County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 25 Ml over Draw | 2004 | 102,000 | Fair |
| I25 Ml over Draw | 2004 | 102,000 | Fair |
| I 25 ML & Ramps over Channel Md-b | 2000 | 91,000 | Good |
| I 25 Ml and Fr Rds over Lower Boulder Ditch | 2000 | 91,000 | Good |
| I 25 Ml Nbnd over SH 60 Ml | 2023 | 86,000 | Good |
| I 25 Ml Sbnd over Weld County Road 46 | 2022 | 83,000 | Good |
All bridges nearby: Weld County, CO bridge conditions · every bridge in Weld County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.