I 70 Frontage SR over UP RR SR
PoorEagle County, Colorado · NE / Dotsero Interchange · Structure no. F-08-D
- Built
- 1935
- 90 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 142 ft
- 3 main spans
- Daily traffic
- 3,246
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 70 Frontage SR over UP RR SR is a steel stringer/multi-beam or girder carrying I 70 Frontage SR over UP RR SR in Eagle County, Colorado. It was built in 1935, so it is 90 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 3,246 vehicles a day, roughly 15% of them trucks, projected to reach 4,025 by 2044. The structure is 142 ft (43.3 m) long and 33 ft wide. If it were closed, the detour would be 62.1 mi (100 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 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 I 70 Frontage SR over UP RR SR built?
It was built in 1935, making it 90 years old in 2025.
What condition is I 70 Frontage SR over UP RR SR 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 August 2024.
How much traffic does I 70 Frontage SR over UP RR SR carry?
About 3,246 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is I 70 Frontage SR over UP RR SR?
The structure is 142 ft (43.3 m) long with a longest span of 45 ft (13.8 m) and a deck 33 ft wide.
Who owns I 70 Frontage SR over UP RR SR?
It is owned by the State Highway Agency.