Ramp to I 70 Wbnd over Mamm Creek
GoodGarfield County, Colorado · 4.5MI E of Rifle · Structure no. F-06-AF
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 102 ft
- 1 main span
- Daily traffic
- 721
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ramp to I 70 Wbnd over Mamm Creek is a prestressed concrete stringer/multi-beam or girder carrying Ramp to I 70 Wbnd over Mamm Creek in Garfield County, Colorado. It was built in 1977, so it is 48 years old, older 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 721 vehicles a day, roughly 11% of them trucks, projected to reach 916 by 2042. The structure is 102 ft (31.2 m) long and 31 ft wide. If it were closed, the detour would be 62.1 mi (100 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ramp to I 70 Wbnd over Mamm Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is Ramp to I 70 Wbnd over Mamm Creek 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 September 2024.
How much traffic does Ramp to I 70 Wbnd over Mamm Creek carry?
About 721 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Ramp to I 70 Wbnd over Mamm Creek?
The structure is 102 ft (31.2 m) long with a longest span of 99 ft (30.2 m) and a deck 31 ft wide.
Who owns Ramp to I 70 Wbnd over Mamm Creek?
It is owned by the State Highway Agency.