Lookout Mountain R over I 70 Ml
Jefferson County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Lookout Mountain R over I 70 Ml in Jefferson County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 6,252 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- 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 → (39.70359, -105.25079)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete single box beam |
| Length | about 236 ft |
| Location | 4.3 Mi E of Jct SH 74 |
| NBI structure number | F-15-AE |
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.