US 85 Ml Sbnd over South Platte River
PoorWeld County, Colorado · S. Edge of Evans · Structure no. C-18-AG
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected November 2023
- Type
- Tee Beam
- Concrete
- Length
- 952 ft
- 19 main spans
- Daily traffic
- 12,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 85 Ml Sbnd over South Platte River is a concrete tee beam carrying US 85 Ml Sbnd over South Platte River in Weld County, Colorado. It was built in 1955, so it is 70 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 12,500 vehicles a day, roughly 7% of them trucks, projected to reach 16,625 by 2040. The structure is 952 ft (290.2 m) long and 35 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 85 Ml Sbnd over South Platte River built?
It was built in 1955, making it 70 years old in 2025.
What condition is US 85 Ml Sbnd over South Platte River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.
How much traffic does US 85 Ml Sbnd over South Platte River carry?
About 12,500 vehicles per day (2020 count), of which roughly 7% are trucks.
How long is US 85 Ml Sbnd over South Platte River?
The structure is 952 ft (290.2 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.
Who owns US 85 Ml Sbnd over South Platte River?
It is owned by the State Highway Agency.