SH 59 Ml over Sandy Creek
Phillips County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 59 Ml over Sandy Creek in Phillips County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1949, making it 76 years old at the 2025 inventory.
- It carries about 220 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 5 of the 26 inventoried bridges in Phillips County rated poor (19.2%); 5 (19.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, would be posted or closed except for temporary shoring or other temporary measures (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2023, on a 24-month routine inspection cycle.
- 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 → (40.53091, -102.62644)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 231 ft |
| Location | 33.2 Mi N of Jct US 34 |
| NBI structure number | B-26-F |
| Condition class | Poor |
| Traffic status (item 41) | Open, would be posted or closed except for temporary shoring or other temporary measures |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Phillips County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 6 Ml over Frenchman Creek | 1935 | 1,900 | Poor |
| US 385 Ml over Frenchman Creek | 1949 | 1,900 | Fair |
| US 6 Ml over N.fk.frenchman Creek | 2004 | 1,900 | Fair |
| US 6 Ml over Frenchman Creek | 1934 | 1,500 | Poor |
| US 6 Ml over Draw | 1934 | 1,500 | Poor |
| US 6 Ml over Draw | 2005 | 1,500 | Fair |
All bridges nearby: Phillips County, CO bridge conditions · every bridge in Phillips County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.