US 85 Ml Nbnd over Larimer-Weld Canal
FairWeld County, Colorado · 3 MI N of Eaton · Structure no. B-18-B
- Built
- 1931
- 94 years old
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 4,250
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 85 Ml Nbnd over Larimer-Weld Canal is a steel stringer/multi-beam or girder carrying US 85 Ml Nbnd over Larimer-Weld Canal in Weld County, Colorado. It was built in 1931, so it is 94 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,250 vehicles a day, roughly 13% of them trucks, projected to reach 4,973 by 2040. The structure is 33 ft (10.2 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 85 Ml Nbnd over Larimer-Weld Canal built?
It was built in 1931, making it 94 years old in 2025.
What condition is US 85 Ml Nbnd over Larimer-Weld Canal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.
How much traffic does US 85 Ml Nbnd over Larimer-Weld Canal carry?
About 4,250 vehicles per day (2020 count), of which roughly 13% are trucks.
How long is US 85 Ml Nbnd over Larimer-Weld Canal?
The structure is 33 ft (10.2 m) long with a longest span of 27 ft (8.2 m) and a deck 33 ft wide.
Who owns US 85 Ml Nbnd over Larimer-Weld Canal?
It is owned by the State Highway Agency.