North Avenue over Drainage
Jefferson County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- North Avenue over Drainage in Jefferson County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1942, making it 83 years old at the 2025 inventory.
- It carries about 1,100 vehicles a day (traffic count year 2019).
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (39.70752, -105.11954)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 30 ft |
| Location | E. of Union Blvd. |
| NBI structure number | 2195010P0000000 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
All bridges nearby: Jefferson County, CO bridge conditions · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.