Bridge conditions in Denver County, Colorado
457 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 457 bridges in Denver County: 188 rated good, 260 fair, and 9 poor.
- 9 of the 457 bridges in Denver County, Colorado, are rated in poor condition (2.0%) in the 2025 National Bridge Inventory, as of .
- 188 bridges (41.1%) are rated good and 260 (56.9%) fair.
- The median Denver County bridge was built in 1993.
- The busiest poor-rated bridge is I 225 Ml over Goldsmith Gulch (built 1971), carrying about 128,000 vehicles a day.
Good 41.1% · Fair 56.9% · Poor 2.0% of 457 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 |
|---|---|---|---|
| I 225 Ml over Goldsmith Gulch | 1971 | 128,000 | Poor |
| Ramp to I 25 Nbnd over US 6 Ml | 1989 | 107,500 | Poor |
| SH 35 Ml over Sand Creek | 1962 | 60,000 | Poor |
| Speer Blvd Sbnd over I 25 Ml | 1952 | 23,671 | Poor |
| SH 95 Ml Nbnd over Bear Creek | 1961 | 15,500 | Poor |
| SH 95 Ml Sbnd over Bear Creek | 1961 | 15,500 | Poor |
| 23RD Avenue over I 25 Ml | 1952 | 11,261 | Poor |
| Perry Street over US 6 Ml | 1964 | 9,607 | Poor |
| 44TH Ave over I 25 Ml | 1988 | 3,203 | Poor |
Busiest bridges in the 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 |
| Wbcolfax RMP/I25ML over BNSF RR R | 1988 | 235,000 | Good |
| I 25 Ml over 8TH Ave | 1958 | 228,000 | Fair |
| I 25 Ml over I 225 Lrt | 2004 | 223,000 | Good |
| I25 Ml over Lrt | 2004 | 223,000 | 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.