LA0170 over Black Bayou
PoorPosted for loadCaddo Parish, Louisiana · 7.99 MI East of LA 1 · Structure no. 040900960108801
- Built
- 1977
- 48 years old
- Condition
- Poor
- inspected August 2024
- Type
- Slab
- Concrete
- Length
- 437 ft
- 23 main spans
- Daily traffic
- 1,209
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0170 over Black Bayou is a concrete slab carrying LA0170 over Black Bayou in Caddo Parish, Louisiana. It was built in 1977, so it is 48 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 3 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. Its operating status is: posted for load restriction.
It carries about 1,209 vehicles a day, roughly 19% of them trucks, projected to reach 1,329 by 2041. The structure is 437 ft (133.2 m) long and 31 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0170 over Black Bayou built?
It was built in 1977, making it 48 years old in 2025.
What condition is LA0170 over Black 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 August 2024.
How much traffic does LA0170 over Black Bayou carry?
About 1,209 vehicles per day (2021 count), of which roughly 19% are trucks.
How long is LA0170 over Black Bayou?
The structure is 437 ft (133.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns LA0170 over Black Bayou?
It is owned by the State Highway Agency.