Bridge conditions in Weld County, Colorado
608 inventoried bridges · 21 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 608 bridges in Weld County: 211 rated good, 376 fair, and 21 poor.
- 21 of the 608 bridges in Weld County, Colorado, are rated in poor condition (3.5%) in the 2025 National Bridge Inventory, as of .
- 211 bridges (34.7%) are rated good and 376 (61.8%) fair.
- The median Weld County bridge was built in 1990.
- The busiest poor-rated bridge is US 34 Ml Wbnd over US 85 Bus Rt (built 1962), carrying about 16,500 vehicles a day.
Good 34.7% · Fair 61.8% · Poor 3.5% of 608 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.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 25 Ml over Draw | 2004 | 102,000 | Fair |
| I25 Ml over Draw | 2004 | 102,000 | Fair |
| I 25 ML & Ramps over Channel Md-b | 2000 | 91,000 | Good |
| I 25 Ml and Fr Rds over Lower Boulder Ditch | 2000 | 91,000 | Good |
| I 25 Ml Nbnd over SH 60 Ml | 2023 | 86,000 | Good |
| I 25 Ml Sbnd over Weld County Road 46 | 2022 | 83,000 | Good |
| I 25 ML serv. rd. over Draw | 1961 | 72,000 | Fair |
| I 25 Ml Nbnd over Weld County Road 10 | 2004 | 51,000 | Good |
| I 25 Ml Sbnd over Weld County Road 10 | 2004 | 51,000 | Good |
| I 25 Ml Nbnd over SH 119 Ml | 1998 | 45,500 | 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.