SR 450 over Knox Bayou
GoodPosted for loadBolivar County, Mississippi · 16.3 MI E SR 1 · Structure no. 310045000601630
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 630
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 450 over Knox Bayou is a prestressed concrete slab carrying SR 450 over Knox Bayou in Bolivar County, Mississippi. It was built in 1991, so it is 34 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. Its operating status is: posted for load restriction.
It carries about 630 vehicles a day, roughly 11% of them trucks, projected to reach 630 by 2043. The structure is 93 ft (28.3 m) long and 37 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 450 over Knox Bayou built?
It was built in 1991, making it 34 years old in 2025.
What condition is SR 450 over Knox 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 January 2024.
How much traffic does SR 450 over Knox Bayou carry?
About 630 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is SR 450 over Knox Bayou?
The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 37 ft wide.
Who owns SR 450 over Knox Bayou?
It is owned by the State Highway Agency.