E-470 NB over South Platte River
GoodAdams County, Colorado · 38.97 MI from I25 · Structure no. E-470-38.97A
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 907 ft
- 6 main spans
- Daily traffic
- 18,870
- 2018 count
- Owner
- Toll Authority
- Local Toll Authority
About this bridge
E-470 NB over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying E-470 NB over South Platte River in Adams County, Colorado. It was built in 2003, so it is 22 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 18,870 vehicles a day, roughly 6% of them trucks, projected to reach 33,588 by 2038. The structure is 907 ft (276.6 m) long and 40 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 | 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 E-470 NB over South Platte River built?
It was built in 2003, making it 22 years old in 2025.
What condition is E-470 NB over South Platte River 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 South Platte River carry?
About 18,870 vehicles per day (2018 count), of which roughly 6% are trucks.
How long is E-470 NB over South Platte River?
The structure is 907 ft (276.6 m) long with a longest span of 147 ft (44.8 m) and a deck 40 ft wide.
Who owns E-470 NB over South Platte River?
It is owned by the Local Toll Authority.