US0171 over Buchanan Bayou
PoorCaddo Parish, Louisiana · 3.3 Mi. S. of LA 526 · Structure no. 040900250804142
- Built
- 1953
- 72 years old
- Condition
- Poor
- inspected January 2024
- Type
- Tee Beam
- Concrete
- Length
- 120 ft
- 4 main spans
- Daily traffic
- 16,911
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US0171 over Buchanan Bayou is a concrete tee beam carrying US0171 over Buchanan Bayou in Caddo Parish, Louisiana. It was built in 1953, so it is 72 years old, older than the Louisiana average of 43 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 16,911 vehicles a day, roughly 18% of them trucks, projected to reach 18,602 by 2041. The structure is 120 ft (36.6 m) long and 33 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US0171 over Buchanan Bayou built?
It was built in 1953, making it 72 years old in 2025.
What condition is US0171 over Buchanan Bayou 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 2024.
How much traffic does US0171 over Buchanan Bayou carry?
About 16,911 vehicles per day (2021 count), of which roughly 18% are trucks.
How long is US0171 over Buchanan Bayou?
The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns US0171 over Buchanan Bayou?
It is owned by the State Highway Agency.