Lyon Road over Porter Bayou
GoodSunflower County, Mississippi · Sec 20 T20N R 5W · Structure no. SA6700000000098
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 30
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Lyon Road over Porter Bayou is a prestressed concrete stringer/multi-beam or girder carrying Lyon Road over Porter Bayou in Sunflower County, Mississippi. It was built in 1992, so it is 33 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 30 vehicles a day, roughly 8% of them trucks, projected to reach 45 by 2035. The structure is 93 ft (28.3 m) long and 25 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lyon Road over Porter Bayou built?
It was built in 1992, making it 33 years old in 2025.
What condition is Lyon Road over Porter 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 October 2023.
How much traffic does Lyon Road over Porter Bayou carry?
About 30 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Lyon Road over Porter Bayou?
The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.
Who owns Lyon Road over Porter Bayou?
It is owned by the County Highway Agency.