SH 66 Ml over South Platte River
GoodWeld County, Colorado · .2 MI W of 85 · Structure no. D-17-DF
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 376 ft
- 3 main spans
- Daily traffic
- 9,100
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 66 Ml over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 66 Ml over South Platte River in Weld County, Colorado. It was built in 1988, so it is 37 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 9,100 vehicles a day, roughly 10% of them trucks, projected to reach 13,468 by 2040. The structure is 376 ft (114.7 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 66 Ml over South Platte River built?
It was built in 1988, making it 37 years old in 2025.
What condition is SH 66 Ml 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 January 2024.
How much traffic does SH 66 Ml over South Platte River carry?
About 9,100 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is SH 66 Ml over South Platte River?
The structure is 376 ft (114.7 m) long with a longest span of 124 ft (37.9 m) and a deck 43 ft wide.
Who owns SH 66 Ml over South Platte River?
It is owned by the State Highway Agency.