US 90 over Nine Mile Bayou
Good Condition55 years old6,500 vehicles/day
Location
| State | Mississippi |
| County | Jackson |
| Location | 5.7 Mi E SR 63 |
| Carries | US 90 |
| Crosses | Nine Mile Bayou |
| Coordinates | 30.43822, -88.43578 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 270.0 ft (82.3 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 1045.2 sq m |
| Main Spans | 9 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 6,500 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 21000900300805A |