SH 52 Ml over Lower Boulder Canal
FairWeld County, Colorado · 4.1 MI E of JCT US 287 · Structure no. D-16-W
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected March 2023
- Type
- Culvert
- Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 14,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 52 Ml over Lower Boulder Canal is a concrete culvert carrying SH 52 Ml over Lower Boulder Canal in Weld County, Colorado. It was built in 1963, so it is 62 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 14,000 vehicles a day, roughly 5% of them trucks, projected to reach 18,340 by 2040. The structure is 33 ft (10 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 52 Ml over Lower Boulder Canal built?
It was built in 1963, making it 62 years old in 2025.
What condition is SH 52 Ml over Lower Boulder 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 March 2023.
How much traffic does SH 52 Ml over Lower Boulder Canal carry?
About 14,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is SH 52 Ml over Lower Boulder Canal?
The structure is 33 ft (10 m) long with a longest span of 33 ft (10 m) and a deck 51 ft wide.
Who owns SH 52 Ml over Lower Boulder Canal?
It is owned by the State Highway Agency.