Bridge conditions in Phillips County, Colorado
26 inventoried bridges · 5 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Phillips County has 5 bridges rated poor out of 26 inventoried, a 19.2% share that puts it well above the national rate of about 7%.
- 5 of the 26 bridges in Phillips County, Colorado, are rated in poor condition (19.2%) in the 2025 National Bridge Inventory, as of .
- 1 bridges (3.8%) are rated good and 20 (76.9%) fair.
- The median Phillips County bridge was built in 1986.
- The busiest poor-rated bridge is US 6 Ml over Frenchman Creek (built 1935), carrying about 1,900 vehicles a day.
Good 3.8% · Fair 76.9% · Poor 19.2% of 26 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 6 Ml over Frenchman Creek | 1935 | 1,900 | Poor |
| US 6 Ml over Frenchman Creek | 1934 | 1,500 | Poor |
| US 6 Ml over Draw | 1934 | 1,500 | Poor |
| SH 59 Ml over Six Mile Creek | 1948 | 220 | Poor |
| SH 59 Ml over Sandy Creek | 1949 | 220 | Poor |
Busiest bridges in the 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 |
| SH 59 Ml over Frenchman Creek | 1959 | 450 | Fair |
| SH 59 Ml over Six Mile Creek | 1948 | 220 | Poor |
| SH 59 Ml over Sandy Creek | 1949 | 220 | Poor |
| SH 59 Ml over Draw | 1967 | 220 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Colorado: Colorado bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.