South Bowen Street over Left Hand Creek
PoorBoulder County, Colorado · At Missouri Ave · Structure no. LONG-SBOW-MIS
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected January 2025
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 1,835
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
South Bowen Street over Left Hand Creek is a prestressed concrete tee beam carrying South Bowen Street over Left Hand Creek in Boulder County, Colorado. It was built in 1965, so it is 60 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,835 vehicles a day, roughly 9% of them trucks, projected to reach 2,202 by 2043. The structure is 31 ft (9.4 m) long and 40 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 South Bowen Street over Left Hand Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is South Bowen Street over Left Hand Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.
How much traffic does South Bowen Street over Left Hand Creek carry?
About 1,835 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is South Bowen Street over Left Hand Creek?
The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 40 ft wide.
Who owns South Bowen Street over Left Hand Creek?
It is owned by the City or Municipal Highway Agency.