SH 26 Ml over South Platte River
Denver County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 26 Ml over South Platte River in Denver 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 1911 and reconstructed in 1966, making it 114 years old at the 2025 inventory.
- It carries about 42,000 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 260 of the 457 inventoried bridges in Denver County rated fair (56.9%); 9 (2.0%) 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 → (39.71107, -105.00036)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Steel girder and floorbeam |
| Length | about 179 ft |
| Location | I 25 & ALAMEDA IN DEN |
| NBI structure number | F-16-BI |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Denver County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 25 Ml over RTD Pedestrian Underpass | 2003 | 261,000 | Fair |
| I 25 Ml over RR Spur | 1949 | 242,000 | Fair |
| I 25 Ml over Fox Street | 1949 | 242,000 | Good |
| I 25 Ml over Storm Drainage | 1993 | 242,000 | Fair |
| I 25 Ml over W. Myrtle Pl. / RR | 1956 | 235,000 | Fair |
| I 25 Ml over 13TH Ave | 1956 | 235,000 | Fair |
All bridges nearby: Denver County, CO bridge conditions · every bridge in Denver County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.