E-470 NB over Obrian Canal
GoodAdams County, Colorado · 34.42 MI from I25 · Structure no. E-470-34.42A
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 157 ft
- 1 main span
- Daily traffic
- 21,844
- 2018 count
- Owner
- Toll Authority
- Local Toll Authority
About this bridge
E-470 NB over Obrian Canal is a prestressed concrete stringer/multi-beam or girder carrying E-470 NB over Obrian Canal in Adams County, Colorado. It was built in 2002, so it is 23 years old, younger than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 21,844 vehicles a day, roughly 6% of them trucks, projected to reach 38,882 by 2038. The structure is 157 ft (48 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was E-470 NB over Obrian Canal built?
It was built in 2002, making it 23 years old in 2025.
What condition is E-470 NB over Obrian Canal in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does E-470 NB over Obrian Canal carry?
About 21,844 vehicles per day (2018 count), of which roughly 6% are trucks.
How long is E-470 NB over Obrian Canal?
The structure is 157 ft (48 m) long with a longest span of 152 ft (46.4 m) and a deck 55 ft wide.
Who owns E-470 NB over Obrian Canal?
It is owned by the Local Toll Authority.