US 90 over Cowan Bayou
GoodHancock County, Mississippi · 0.5 MI E LA State Line · Structure no. 210009002300050
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected February 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 640 ft
- 16 main spans
- Daily traffic
- 2,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 90 over Cowan Bayou is a prestressed concrete slab carrying US 90 over Cowan Bayou in Hancock County, Mississippi. It was built in 2009, so it is 16 years old, younger than the Mississippi average of 38.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,600 vehicles a day, roughly 7% of them trucks, projected to reach 2,600 by 2043. The structure is 640 ft (195.1 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 90 over Cowan Bayou built?
It was built in 2009, making it 16 years old in 2025.
What condition is US 90 over Cowan Bayou in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.
How much traffic does US 90 over Cowan Bayou carry?
About 2,600 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US 90 over Cowan Bayou?
The structure is 640 ft (195.1 m) long with a longest span of 40 ft (12.2 m) and a deck 47 ft wide.
Who owns US 90 over Cowan Bayou?
It is owned by the State Highway Agency.