I 70 Ml over SH 121 Ml
FairJefferson County, Colorado · Arvada · Structure no. E-16-PL
- Built
- 1996
- 29 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 201 ft
- 1 main span
- Daily traffic
- 118,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
I 70 Ml over SH 121 Ml is a prestressed concrete box beam or girders - multiple carrying I 70 Ml over SH 121 Ml in Jefferson County, Colorado. It was built in 1996, so it is 29 years old, younger than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 118,000 vehicles a day, roughly 10% of them trucks, projected to reach 140,420 by 2040. The structure is 201 ft (61.3 m) long and 216 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 70 Ml over SH 121 Ml built?
It was built in 1996, making it 29 years old in 2025.
What condition is I 70 Ml over SH 121 Ml in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.
How much traffic does I 70 Ml over SH 121 Ml carry?
About 118,000 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is I 70 Ml over SH 121 Ml?
The structure is 201 ft (61.3 m) long with a longest span of 194 ft (59.1 m) and a deck 216 ft wide.
Who owns I 70 Ml over SH 121 Ml?
It is owned by the State Highway Agency.