SR 789 over Mayo Slough
GoodLowndes County, Mississippi · 1.7 MI W US 45 · Structure no. 310078904400640
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 1,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 789 over Mayo Slough is a prestressed concrete stringer/multi-beam or girder carrying SR 789 over Mayo Slough in Lowndes County, Mississippi. It was built in 1997, so it is 28 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 1,500 vehicles a day, roughly 36% of them trucks, projected to reach 1,500 by 2043. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 789 over Mayo Slough built?
It was built in 1997, making it 28 years old in 2025.
What condition is SR 789 over Mayo Slough 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 July 2024.
How much traffic does SR 789 over Mayo Slough carry?
About 1,500 vehicles per day (2023 count), of which roughly 36% are trucks.
How long is SR 789 over Mayo Slough?
The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.
Who owns SR 789 over Mayo Slough?
It is owned by the State Highway Agency.