Mc Sorley Lane over South Boulder Creek
FairBoulder County, Colorado · 0.1 MI W of Cherryvale RD · Structure no. BC-O-OSR-9B
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 52 ft
- 2 main spans
- Daily traffic
- 272
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Mc Sorley Lane over South Boulder Creek is a prestressed concrete tee beam carrying Mc Sorley Lane over South Boulder Creek in Boulder County, Colorado. It was built in 1970, so it is 55 years old, older 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 272 vehicles a day, roughly 6% of them trucks, projected to reach 327 by 2043. The structure is 52 ft (15.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mc Sorley Lane over South Boulder Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is Mc Sorley Lane over South Boulder Creek 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 February 2025.
How much traffic does Mc Sorley Lane over South Boulder Creek carry?
About 272 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Mc Sorley Lane over South Boulder Creek?
The structure is 52 ft (15.8 m) long with a longest span of 25 ft (7.6 m) and a deck 27 ft wide.
Who owns Mc Sorley Lane over South Boulder Creek?
It is owned by the City or Municipal Highway Agency.