Martin Street over Saint Vrain River
FairBoulder County, Colorado · 0.1 MI N of SH119 · Structure no. LONG-MART-KEN
- Built
- 2009
- 16 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 303 ft
- 4 main spans
- Daily traffic
- 11,759
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Martin Street over Saint Vrain River is a prestressed concrete continuous box beam or girders - multiple carrying Martin Street over Saint Vrain River in Boulder County, Colorado. It was built in 2009, so it is 16 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 11,759 vehicles a day, roughly 8% of them trucks, projected to reach 14,110 by 2043. The structure is 303 ft (92.4 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Martin Street over Saint Vrain River built?
It was built in 2009, making it 16 years old in 2025.
What condition is Martin Street over Saint Vrain River 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 January 2025.
How much traffic does Martin Street over Saint Vrain River carry?
About 11,759 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Martin Street over Saint Vrain River?
The structure is 303 ft (92.4 m) long with a longest span of 73 ft (22.1 m) and a deck 52 ft wide.
Who owns Martin Street over Saint Vrain River?
It is owned by the City or Municipal Highway Agency.