Hiram-mcgraw Rd over Buffalo River
Wilkinson County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hiram-mcgraw Rd over Buffalo River in Wilkinson County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1978, making it 47 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 62 of the 92 inventoried bridges in Wilkinson County rated good (67.4%); 8 (8.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (31.09636, -91.12646)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 279 ft |
| Location | Sec 34 T 2N R 1E B |
| NBI structure number | SA7900000000036 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Wilkinson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 61 over Fords Creek | 1999 | 2,450 | Good |
| US 61 over Fords Creek | 2000 | 2,450 | Good |
| US 61 over Buffalo River | 1989 | 2,450 | Good |
| US 61 over Buffalo River | 1996 | 2,450 | Good |
| US 61 over Buffalo River Relief | 1989 | 2,450 | Good |
| US 61 over Buffalo River Relief | 1996 | 2,450 | Good |
All bridges nearby: Wilkinson County, MS bridge conditions · every bridge in Wilkinson County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.