US 34 Ml over 23rd Ave
FairWeld County, Colorado · In Greeley · Structure no. C-18-ER
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 162 ft
- 1 main span
- Daily traffic
- 38,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 34 Ml over 23rd Ave is a prestressed concrete box beam or girders - multiple carrying US 34 Ml over 23rd Ave in Weld County, Colorado. It was built in 1974, so it is 51 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 6 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 38,000 vehicles a day, roughly 5% of them trucks, projected to reach 52,820 by 2040. The structure is 162 ft (49.5 m) long and 91 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 34 Ml over 23rd Ave built?
It was built in 1974, making it 51 years old in 2025.
What condition is US 34 Ml over 23rd Ave 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 August 2023.
How much traffic does US 34 Ml over 23rd Ave carry?
About 38,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is US 34 Ml over 23rd Ave?
The structure is 162 ft (49.5 m) long with a longest span of 160 ft (48.8 m) and a deck 91 ft wide.
Who owns US 34 Ml over 23rd Ave?
It is owned by the State Highway Agency.